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4769 Commits

Author SHA1 Message Date
Chris Lattner
07649d9265 Make load->store deletion a bit smarter. This allows us to compile this: 
void test(long long *P) { *P ^= 1; }

into just:

_test:
	movl	4(%esp), %eax
	xorl	$1, (%eax)
	ret

instead of code like this:

_test:
	movl	4(%esp), %ecx
        xorl    $1, (%ecx)
	movl	4(%ecx), %edx
	movl	%edx, 4(%ecx)
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45762 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 23:08:06 +00:00
Duncan Sands
2815cbb9c7 Crashes llc when using Chris's new legalization logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45758 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 21:51:53 +00:00
Chris Lattner
f9d9e45225 Implement PR1795, an instcombine hack for forming GEPs with integer pointer arithmetic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 07:23:51 +00:00
Chris Lattner
a4040e9a9f remove darwin/i386 t-t 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45743 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 06:52:51 +00:00
Chris Lattner
fe39edde27 Finally implement correct ordered comparisons for PPC, even though 
the code generated is not wonderful.  This turns a miscompilation into
a code quality bug (noted in the ppc readme).  This fixes PR642, which
is over 2 years old (!).  Nate, please review this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45742 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 06:46:30 +00:00
Chris Lattner
83d760ba8e Testcase for PR1721 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 05:16:29 +00:00
Nate Begeman
337c213c18 Update test to catch recent x86 insert regression and improvements 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 17:49:23 +00:00
Gordon Henriksen
572742e876 Setting GlobalDirective in TargetAsmInfo by default rather than 
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 02:31:11 +00:00
Gordon Henriksen
8fa8929177 With this patch, the LowerGC transformation becomes the 
ShadowStackCollector, which additionally has reduced overhead with
no sacrifice in portability.

Considering a function @fun with 8 loop-local roots,
ShadowStackCollector introduces the following overhead
(x86):

; shadowstack prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    $___gc_fun, 20(%esp)
        movl    $0, 24(%esp)
        movl    $0, 28(%esp)
        movl    $0, 32(%esp)
        movl    $0, 36(%esp)
        movl    $0, 40(%esp)
        movl    $0, 44(%esp)
        movl    $0, 48(%esp)
        movl    $0, 52(%esp)
        movl    %ecx, 16(%esp)
        leal    16(%esp), %ecx
        movl    %ecx, (%eax)

; shadowstack loop overhead
        (none)

; shadowstack epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; shadowstack metadata
        .align  3
___gc_fun:                              # __gc_fun
        .long   8
        .space  4

In comparison to LowerGC:

; lowergc prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    %ecx, 48(%esp)
        movl    $8, 52(%esp)
        movl    $0, 60(%esp)
        movl    $0, 56(%esp)
        movl    $0, 68(%esp)
        movl    $0, 64(%esp)
        movl    $0, 76(%esp)
        movl    $0, 72(%esp)
        movl    $0, 84(%esp)
        movl    $0, 80(%esp)
        movl    $0, 92(%esp)
        movl    $0, 88(%esp)
        movl    $0, 100(%esp)
        movl    $0, 96(%esp)
        movl    $0, 108(%esp)
        movl    $0, 104(%esp)
        movl    $0, 116(%esp)
        movl    $0, 112(%esp)

; lowergc loop overhead
        leal    44(%esp), %eax
        movl    %eax, 56(%esp)
        leal    40(%esp), %eax
        movl    %eax, 64(%esp)
        leal    36(%esp), %eax
        movl    %eax, 72(%esp)
        leal    32(%esp), %eax
        movl    %eax, 80(%esp)
        leal    28(%esp), %eax
        movl    %eax, 88(%esp)
        leal    24(%esp), %eax
        movl    %eax, 96(%esp)
        leal    20(%esp), %eax
        movl    %eax, 104(%esp)
        leal    16(%esp), %eax
        movl    %eax, 112(%esp)

; lowergc epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; lowergc metadata
        (none)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45670 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 01:30:53 +00:00
Duncan Sands
ad9a9e1559 The transform that tries to turn calls to bitcast functions into 
direct calls bails out unless caller and callee have essentially
equivalent parameter attributes.  This is illogical - the callee's
attributes should be of no relevance here.  Rework the logic, which
incidentally fixes a crash when removed arguments have attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45658 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 18:27:01 +00:00
Duncan Sands
a9d0c9dc58 When transforming a call to a bitcast function into 
a direct call with cast parameters and cast return
value (if any), instcombine was prepared to cast any
non-void return value into any other, whether castable
or not.  Add a new predicate for testing whether casting
is valid, and check it both for the return value and
(as a cleanup) for the parameters.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 10:12:28 +00:00
Nick Lewycky
e81cd881b1 Accept both %y, %x and %x, %y as valid answers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45649 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 03:12:44 +00:00
Chris Lattner
5a62d0a038 remove a couple more unsafe xforms in the face of overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-05 01:22:42 +00:00
Duncan Sands
ad04cb28c5 Testcase with non-integer "bitfields" (in quotes, 
since they didn't actually need to be bitfields,
though they are marked as such).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45588 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 17:31:56 +00:00
Duncan Sands
e2940c3b70 Testcase for PR1386. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45583 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 13:15:39 +00:00
Chris Lattner
9027b3cc7f Fix PR1896 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 05:04:53 +00:00
Duncan Sands
7cc5facfe5 Test for handling of large bit offset from a 
variable field offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45534 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 11:53:52 +00:00
Chris Lattner
3d73bce2d0 don't hoist FP additions into unconditional adds + selects. This 
could theoretically introduce a trap, but is also a performance issue.
This speeds up ptrdist/ks by 8%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45533 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 07:25:26 +00:00
Duncan Sands
227ff79ceb An example for which the TYPE_SIZE was being set from 
the initial value, while the type fields were not (this
is a qualified union type, so not all fields are always
present).  This resulted in the size of the corresponding
LLVM type being larger than the gcc TYPE_SIZE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45522 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 00:26:42 +00:00
Duncan Sands
c51daccb7e Test handling of records for which the fields are 
not ordered by offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45520 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-03 00:17:02 +00:00
Chris Lattner
e9d666e7fb fix this to use a valid triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45509 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-02 22:21:45 +00:00
Chris Lattner
e2620add35 verify that aligned common support doesn't break. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45495 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-02 19:48:24 +00:00
Bill Wendling
4c07450305 Update this testcase. The output needs to be disabled to pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45478 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-01 01:34:36 +00:00
Duncan Sands
b027fa001f Fix PR1833 - eh.exception and eh.selector return two 
values, which means doing extra legalization work.
It would be easier to get this kind of thing right if
there was some documentation...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-31 18:35:50 +00:00
Gordon Henriksen
78d34664e7 Another backwards compatibility fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45463 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 22:48:58 +00:00
Gordon Henriksen
271000d545 Strengthening this test so it fails in release mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 05:45:49 +00:00
Gordon Henriksen
cc0928ff22 Bindings for instruction calling conventions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45422 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 20:45:00 +00:00
Chris Lattner
57360d1f1c remove attributions from the rest of the llvm makefiles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45416 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 20:11:13 +00:00
Chris Lattner
03c079d5fc One readme entry is done, one is really easy (Evan, want to investigate 
eliminating the llvm.x86.sse2.loadl.pd intrinsic?), one shuffle optzn
may be done (if shufps is better than pinsw, Evan, please review), and
we already know about LICM of simple instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45407 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:31:47 +00:00
Chris Lattner
18f07f49c5 upgrade this test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45406 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:24:06 +00:00
Chris Lattner
63079f0757 Fold comparisons against a constant nan, and optimize ORD/UNORD 
comparisons with a constant.  This allows us to compile isnan to:

_foo:
	fcmpu cr7, f1, f1
	mfcr r2
	rlwinm r3, r2, 0, 31, 31
	blr 

instead of:

LCPI1_0:					;  float
	.space	4
_foo:
	lis r2, ha16(LCPI1_0)
	lfs f0, lo16(LCPI1_0)(r2)
	fcmpu cr7, f1, f0
	mfcr r2
	rlwinm r3, r2, 0, 31, 31
	blr 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45405 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 08:37:08 +00:00
Chris Lattner
69bfbdfaee this xform is implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45404 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 08:19:39 +00:00
Chris Lattner
d60eedca01 Codegen: 
as:

_bar:
	pushl	%esi
	subl	$8, %esp
	movl	16(%esp), %esi
	call	L_foo$stub
	fstps	(%esi)
	addl	$8, %esp
	popl	%esi
	#FP_REG_KILL
	ret

instead of:

_bar:
	pushl	%esi
	subl	$8, %esp
	movl	16(%esp), %esi
	call	L_foo$stub
	fstpl	(%esi)
	cvtsd2ss	(%esi), %xmm0
	movss	%xmm0, (%esi)
	addl	$8, %esp
	popl	%esi
	#FP_REG_KILL
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45401 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 06:57:38 +00:00
Chris Lattner
112dedc520 avoid going through a stack slot to convert from fpstack to xmm reg 
if we are just going to store it back anyway.  This improves things 
like:
double foo();
void bar(double *P) { *P = foo(); }



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 06:41:28 +00:00
Chris Lattner
741c0aea08 dead calls to llvm.stacksave can be deleted, even though they 
have potential side-effects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45392 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 00:59:12 +00:00
Chris Lattner
26d5f661d6 upgrade this test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45391 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 00:57:06 +00:00
Devang Patel
c49c08f747 Test -simplifycfg only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45389 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-28 22:59:48 +00:00
Owen Anderson
2910f68a52 Add a testcase for my recent InstCombine fix, written by Nicholas. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45386 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-28 21:08:43 +00:00
Gordon Henriksen
a353ffa7e5 Adding bindings for target triple and data layout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45369 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-27 20:13:47 +00:00
Chris Lattner
8d2a922814 one fewer uncond branch with my codegenprepare hack for single-mbb backedges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45360 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-26 17:23:47 +00:00
Gordon Henriksen
e86ce7d94a Tests for changes made in r45356, where IPO optimizations would drop 
collector algorithms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45357 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-26 02:47:37 +00:00
Gordon Henriksen
0e13821c96 GC poses hazards to the inliner. Consider: 
define void @f() {
            ...
            call i32 @g()
            ...
    }

    define void @g() {
            ...
    }

The hazards are:

  - @f and @g have GC, but they differ GC. Inlining is invalid. This
    may never occur.
  - @f has no GC, but @g does. g's GC must be propagated to @f.

The other scenarios are safe:

  - @f and @g have the same GC.
  - @f and @g have no GC.
  - @g has no GC.

This patch adds inliner checks for the former two scenarios.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45351 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-25 03:10:07 +00:00
Gordon Henriksen
e1433f24cf Noting and enforcing that GC intrinsics are valid only within a 
function with GC.

This will catch the error when the inliner inlines a function with
GC into a caller with no GC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45350 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-25 02:31:26 +00:00
Gordon Henriksen
27acd3a999 Adjusting verification of "llvm.gc*" intrinsic prototypes to match 
LangRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45349 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-25 02:02:10 +00:00
Gordon Henriksen
2e855e68d8 C and Ocaml bindings for ExecutionEngine (i.e., the JIT compiler). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45335 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-23 16:59:28 +00:00
Gordon Henriksen
7a653cb24d Fix a partial application typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45317 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-22 19:41:30 +00:00
Chris Lattner
8999dd3c68 implement InstCombine/shift-trunc-shift.ll. This allows 
us to compile:
#include <math.h>
int t1(double d) { return signbit(d); }

into:

_t1:
	movd	%xmm0, %rax
	shrq	$63, %rax
	ret

instead of:

_t1:
	movd	%xmm0, %rax
	shrq	$32, %rax
	shrl	$31, %eax
	ret

on x86-64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45311 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-22 09:07:47 +00:00
Devang Patel
01666bf74b If succ has succ itself as one of the predecessors then do 
not merge current bb and succ even if bb's terminator is
unconditional branch to succ.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45305 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-22 01:32:53 +00:00
Duncan Sands
d9d70395d9 Get the verifier to check attributes on calls as well 
as on functions.  Make it verify invokes and not just
ordinary calls.  As a (desired) side-effect, it is no
longer legal to have call attributes on arguments that
are being passed to the varargs part of a varargs
function (llvm-as drops them on the floor anyway).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45286 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-21 19:19:01 +00:00
Duncan Sands
110c835039 Make DAE not wipe out attributes on calls, and not drop 
return attributes on the floor.  In the case of a call
to a varargs function where the varargs arguments are
being removed, any call attributes on those arguments
need to be dropped.  I didn't do this because I plan to
make it illegal to have such attributes (see next patch).
With this change, compiling the gcc filter2 eh test at -O0
and then running opt -std-compile-opts on it results in
a correctly working program (compiling at -O1 or higher
results in the test failing due to a problem with how we
output eh info into the IR).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45285 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-21 19:16:16 +00:00
Christopher Lamb
103e1a3118 Implement review feedback, including additional transforms 
(icmp slt (sub A B) 1) -> (icmp sle A B)
icmp sgt (sub A B) -1) -> (icmp sge A B)

and add testcase.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45256 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-20 07:21:11 +00:00
Evan Cheng
e3c1cfb181 Remove xfail. This is fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45254 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-20 02:25:21 +00:00
Scott Michel
86c041f50e More working CellSPU tests: 
- vec_const.ll: Vector constant loads
- immed64.ll: i64, f64 constant loads


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45242 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-20 00:44:13 +00:00
Gordon Henriksen
1475142b93 Use a module to group calling convention values, too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45236 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-20 00:13:26 +00:00
Gordon Henriksen
404a1942e4 Using modules to group enumerations in Ocaml bindings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45229 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 22:54:12 +00:00
Gordon Henriksen
da1435f86e Adding bindings for memory buffers and module providers. Switching 
to exceptions rather than variants for error handling in Ocaml.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45226 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 22:30:40 +00:00
Scott Michel
0e5665bf03 CellSPU testcase, extract_elt.ll: extract vector element. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45219 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 21:17:42 +00:00
Duncan Sands
f0c3354d99 When inlining through an 'nounwind' call, mark inlined 
calls 'nounwind'.  It is important for correct C++
exception handling that nounwind markings do not get
lost, so this transformation is actually needed for
correctness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45218 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 21:13:37 +00:00
Scott Michel
0a92af487b More working CellSPU test cases: 
- call.ll: Function call
- ctpop.ll: Count population
- dp_farith.ll: DP arithmetic
- eqv.ll: Equivalence primitives
- fcmp.ll: SP comparisons
- fdiv.ll: SP division
- fneg-fabs.ll: SP negation, aboslute value
- int2fp.ll: Integer -> SP conversion
- rotate_ops.ll: Rotation primitives
- select_bits.ll: (a & c) | (b & ~c) bit selection
- shift_ops.ll: Shift primitives
- sp_farith.ll: SP arithmentic


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45217 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 20:50:49 +00:00
Scott Michel
170783a5fc Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.ll 
(vector insertions)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45216 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 20:15:47 +00:00
Scott Michel
9999e685ea Add new immed16.ll test case, fix CellSPU errata to make test case work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45196 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-19 07:35:06 +00:00
Christopher Lamb
fd8b1fd7f6 Remove an orthogonal transformation of the selection condition from my most recent submission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45169 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 20:30:28 +00:00
Evan Cheng
636e5a216c Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / store node id. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45167 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 19:38:14 +00:00
Christopher Lamb
f311f53a0f Fix typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45159 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 09:45:40 +00:00
Christopher Lamb
30f017ad89 Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV. 
This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45158 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 09:34:41 +00:00
Evan Cheng
beec823d4b FIX for PR1799: When a load is unfolded from an instruction, check if it is a new node. If not, do not create a new SUnit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45157 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 08:42:10 +00:00
Christopher Lamb
ef989a275c Don't forget to print address space qualifiers when printing out the type table! Thanks to Gordon Henriksen for pointing this out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45147 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 03:49:35 +00:00
Dale Johannesen
9bc55bcbc0 Testcase for preceding FE fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45144 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-18 01:58:38 +00:00
Scott Michel
4a5b66bc2f i32 immediate constant test case for CellSPU 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45134 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 23:45:52 +00:00
Evan Cheng
f9b83fcf95 Bring back int_x86_sse2_movl_dq intrinsic for backward compatibility. Make sure 
it's auto-upgraded to a shufflevector instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45131 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 22:33:23 +00:00
Scott Michel
504c369213 - Restore some i8 functionality in CellSPU 
- New test case: nand.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45130 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 22:32:34 +00:00
Duncan Sands
fd7b326bea Make invokes of inline asm legal. Teach codegen 
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45108 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 18:08:19 +00:00
Gordon Henriksen
0a1f248f28 Disabling a RUN line that's broken until addrspace roundtrips 
through llvm-as|llvm-dis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 16:09:28 +00:00
Gordon Henriksen
57cebeec7b C and Ocaml bindings for address spaces, for that burgeoning market 
for Ocaml-based compilers targeting embedded devices. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45096 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 16:08:32 +00:00
Duncan Sands
ece2c04d53 Make instcombine promote inline asm calls to 'nounwind' 
calls.  Remove special casing of inline asm from the
inliner.  There is a potential problem: the verifier
rejects invokes of inline asm (not sure why).  If an
asm call is not marked "nounwind" in some .ll, and
instcombine is not run, but the inliner is run, then
an illegal module will be created.  This is bad but
I'm not sure what the best approach is.  I'm tempted
to remove the check in the verifier...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45073 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-16 15:51:49 +00:00
Evan Cheng
7a831ce85f Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45058 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-15 03:00:47 +00:00
Scott Michel
ec2a08ff06 Start committing working test cases for CellSPU. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45050 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-15 00:38:50 +00:00
Duncan Sands
8a43e9e5d7 Teach the interpreter to read and write memory in the 
endianness of the target not of the host.  Done by the
simple expedient of reversing bytes for primitive types
if the host and target endianness don't match.  This is
correct for integer and pointer types.  I don't know if
it is correct for floating point types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45039 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-14 19:38:31 +00:00
Dan Gohman
064a57a77d Don't redirect stderr when it isn't needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45033 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-14 15:15:11 +00:00
Evan Cheng
152804e9c1 Fix ctlz and cttz. llvm definition requires them to return number of bits in of the src type when value is zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45029 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-14 08:30:15 +00:00
Anders Carlsson
d04764a8ac All MMX shift instructions took a <2 x i32> vector as the shift amount parameter. Change this to be <1 x i64> instead, which matches the assembler instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45027 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-14 06:38:54 +00:00
Evan Cheng
18efe269b1 Implement ctlz and cttz with bsr and bsf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45024 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-14 02:13:44 +00:00
Evan Cheng
f9785f92b6 Be extra careful with extension use optimation. Now turned on by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44981 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-13 03:32:53 +00:00
Zhou Sheng
f488a8d394 Remove this testcase as it will always fail on 
platform like Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44977 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-13 02:03:57 +00:00
Evan Cheng
1314b00cf2 Fold some and + shift in x86 addressing mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44970 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-13 00:43:27 +00:00
Evan Cheng
6e141fd048 Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 23:12:09 +00:00
Dan Gohman
890813243f Allow vector integer constants to be created with 
SelectionDAG::getConstant, in the same way as vector floating-point
constants. This allows the legalize expansion code for @llvm.ctpop and
friends to be usable with vector types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44954 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 22:21:26 +00:00
Wojciech Matyjewicz
ed2232502e 1. "Upgrage" comments. 
2. Using zero-extended value of Scale and unsigned division is safe provided
   that Scale doesn't have the sign bit set.
   Previously these 2 instructions:
        %p = bitcast [100 x {i8,i8,i8}]* %x to i8*
        %q = getelementptr i8* %p, i32 -4
   were combined into:
        %q = getelementptr [100 x { i8, i8, i8 }]* %x, i32 0,
               i32 1431655764, i32 0
   what was incorrect.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44936 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 15:21:32 +00:00
Christopher Lamb
d49e18d29f Implement part of review feedback for address spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44933 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 08:44:39 +00:00
Evan Cheng
794405e6aa Use shuffles to implement insert_vector_elt for i32, i64, f32, and f64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 07:55:34 +00:00
Evan Cheng
2044bccd1a Add a test case for -optimize-ext-uses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44928 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 07:54:08 +00:00
Evan Cheng
db2d524d5f Lower a build_vector with all constants into a constpool load unless it can be done with a move to low part. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 06:45:40 +00:00
Zhou Sheng
6a7951ce9b Fixed PR1629. 
Make lli interpreter correctly call external functions sin()/cos(),
__cxa_guard_acquire() and __cxa_guard_release().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44910 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 04:55:43 +00:00
Gordon Henriksen
1ae6135fa3 Add (very basic) bindings for ModuleProvider. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44899 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 01:04:30 +00:00
Dan Gohman
7228c9e92c Rename these tests to use the appropriate suffixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44867 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 15:55:52 +00:00
Dan Gohman
83935ac59d Use not instead of ignore when an exit status is expected to always 
be non-zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44866 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 15:50:23 +00:00
Dan Gohman
131c60ab9c Don't redirect stderr when it isn't needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44865 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 15:41:11 +00:00
Christopher Lamb
fe63fb986d Implement address space attribute for LLVM pointer types. Address spaces are 
regions of memory that have a target specific relationship, as described in the 
Embedded C Technical Report. 

This also implements the 2007-12-11-AddressSpaces test, 
which demonstrates how address space attributes can be used in LLVM IR.

In addition, this patch changes the bitcode signature for stores (in a backwards 
compatible manner), such that the pointer type, rather than the pointee type, is 
encoded. This permits type information in the pointer (e.g. address space) to be 
preserved for stores.

LangRef updates are forthcoming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44858 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 08:59:05 +00:00
Chris Lattner
1afab9c1e0 Implement constant folding if vector<->vector bitcasts where the number 
of source/dest elements changes.  This implements
test/Transforms/InstCombine/bitcast-vector-fold.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 07:29:44 +00:00
Evan Cheng
14b32e1941 - Improved v8i16 shuffle lowering. It now uses pshuflw and pshufhw as much as 
possible before resorting to pextrw and pinsrw.
- Better codegen for v4i32 shuffles masquerading as v8i16 or v16i8 shuffles.
- Improves (i16 extract_vector_element 0) codegen by recognizing
  (i32 extract_vector_element 0) does not require a pextrw.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44836 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 01:46:18 +00:00
Gordon Henriksen
bbc6597f02 Adding Ocaml bindings for the bitreader as requested by Sarah 
Thompson. Usage should be something like this:

open Llvm
open Llvm_bitreader

match read_bitcode_file fn with
  | Bitreader_failure msg ->
      prerr_endline msg
  | Bitreader_success m -> 
      ...;
      dispose_module m

Compile with: ocamlc llvm.cma llvm_bitreader.cma
              ocamlopt llvm.cmxa llvm_bitreader.cmxa


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44824 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-11 00:20:48 +00:00
Chris Lattner
f286f6fd93 Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp. 
Reimplement the xform in Analysis/ConstantFolding.cpp where we can use
targetdata to validate that it is safe.  While I'm in there, fix some const
correctness issues and generalize the interface to the "operand folder".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 22:53:04 +00:00
Duncan Sands
cbb8badce8 Make PruneEH update the nounwind/noreturn attributes 
on functions as it calculates them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44802 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 19:09:40 +00:00
Duncan Sands
1eff70451f Fix PR1836: in the interpreter, read and write apints 
using the minimum possible number of bytes.  For little
endian targets run on little endian machines, apints are
stored in memory from LSB to MSB as before.  For big endian
targets on big endian machines they are stored from MSB to
LSB which wasn't always the case before (if the target and
host endianness doesn't match values are stored according
to the host's endianness).  Doing this requires knowing the
endianness of the host, which is determined when configuring -
thanks go to Anton for this.  Only having access to little
endian machines I was unable to properly test the big endian
part, which is also the most complicated...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44796 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 17:43:13 +00:00
Christopher Lamb
11a4f64bd4 Improve branch folding by recgonizing that explict successor relationships impact the value of fall-through choices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44785 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 07:24:06 +00:00
Gordon Henriksen
80a75bfae9 Adding a collector name attribute to Function in the IR. These 
methods are new to Function:

  bool hasCollector() const;
  const std::string &getCollector() const;
  void setCollector(const std::string &);
  void clearCollector();

The assembly representation is as such:

  define void @f() gc "shadow-stack" { ...

The implementation uses an on-the-side table to map Functions to 
collector names, such that there is no overhead. A StringPool is 
further used to unique collector names, which are extremely
likely to be unique per process.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 03:18:06 +00:00
Gordon Henriksen
38200692fa Upgrading this test to 2.0 .ll syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44738 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 15:03:01 +00:00
Chris Lattner
f88380ba2c Fix PR1782, patch by Wojtek Matyjewicz! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44733 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 07:35:13 +00:00
Chris Lattner
d96428597b Fix a significant code quality regression I introduced on PPC64 quite 
a while ago.  We now produce:

_foo:
	mflr r0
	std r0, 16(r1)
	ld r2, 16(r1)
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

instead of:

_foo:
	mflr r0
	std r0, 16(r1)
	lis r0, 0
	ori r0, r0, 16
	ldx r2, r1, r0
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

for:

void foo(void **X) {
  *X = __builtin_return_address(0);
}

on ppc64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 07:04:58 +00:00
Chris Lattner
3fc027df4f implement __builtin_return_addr(0) on ppc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 06:59:59 +00:00
Evan Cheng
8a86c3f3ae Much improved v8i16 shuffles. (Step 1). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 08:07:39 +00:00
Evan Cheng
a97159336d New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 01:48:46 +00:00
Evan Cheng
b0e370abdf Fix a bogus test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 22:12:45 +00:00
Evan Cheng
33faddc35d Turning simple splitting on. Start testing new coalescer heuristics as new llcbeta. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44660 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 08:54:31 +00:00
Chris Lattner
d3fd6d2b25 third time around: instead of disabling this completely, 
only disable it if we don't know it will be obviously profitable.
Still fixme, but less so. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44658 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 07:47:55 +00:00
Chris Lattner
e00cbad78d Actually, disable this code for now. More analysis and improvements to 
the X86 backend are needed before this should be enabled by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44657 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 07:44:31 +00:00
Chris Lattner
e70da20f9a implement a readme entry, compiling the code into: 
_foo:
	movl	$12, %eax
	andl	4(%esp), %eax
	movl	_array(%eax), %eax
	ret

instead of:

_foo:
	movl	4(%esp), %eax
	shrl	$2, %eax
	andl	$3, %eax
	movl	_array(,%eax,4), %eax
	ret

As it turns out, this triggers all the time, in a wide variety of
situations, for example, I see diffs like this in various programs:

-       movl    8(%eax), %eax
-       shll    $2, %eax
-       andl    $1020, %eax
-       movl    (%esi,%eax), %eax
+       movzbl  8(%eax), %eax
+       movl    (%esi,%eax,4), %eax


-       shll    $2, %edx
-       andl    $1020, %edx
-       movl    (%edi,%edx), %edx
+       andl    $255, %edx
+       movl    (%edi,%edx,4), %edx

Unfortunately, I also see stuff like this, which can be fixed in the
X86 backend:

-       andl    $85, %ebx
-       addl    _bit_count(,%ebx,4), %ebp
+       shll    $2, %ebx
+       andl    $340, %ebx
+       addl    _bit_count(%ebx), %ebp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44656 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 07:33:36 +00:00
Chris Lattner
7f3a75a529 fix this when run on non x86 hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44645 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 01:05:52 +00:00
Evan Cheng
5ef3a04b54 Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44644 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 00:01:56 +00:00
Devang Patel
5ffdc56f53 If ExitValue operand is also defined in Loop header then 
insert new ExitValue after this operand definition.

This fixes PR1828.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44539 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-03 19:17:21 +00:00
Gordon Henriksen
c8d7194b48 Fix a typo noticed by Alain Frisch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44493 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 20:59:23 +00:00
Evan Cheng
e62f97c094 Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44479 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-01 02:07:52 +00:00
Evan Cheng
cddbb83ea8 Do not fold reload into an instruction with multiple uses. It issues one extra load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44467 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-30 21:23:43 +00:00
Evan Cheng
213ee902cc Update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44435 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-29 10:03:54 +00:00
Chris Lattner
22f26a75d2 New testcase for PR1744 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44418 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 22:43:34 +00:00
Chris Lattner
4b341b4178 upgrade this test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44405 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 18:22:12 +00:00
Chris Lattner
0a0cfdf825 make this test have a deterministic result. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44404 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 18:20:49 +00:00
Duncan Sands
afa3b6da11 Add some convenience methods for querying attributes, and 
use them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44403 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 17:07:01 +00:00
Duncan Sands
1e7b1bbd9c Revert previous "fix" - the breakage was due to some 
local changes, not the "not".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44402 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 16:50:29 +00:00
Duncan Sands
7dbb1e45e3 This test somehow got an extra "not" during the 
recent stderr updates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44401 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 15:36:27 +00:00
Chris Lattner
95d859332b xfail a test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44395 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 05:37:13 +00:00
Chris Lattner
2adcf10a80 update this test after the fmrrd fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44393 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 05:27:07 +00:00
Tanya Lattner
727842e9d7 Fix bug in regression tests that ignored stderr output in RUN lines. Updated tests and fixed broken run lines. 
XFAILed 3 arm regressions (will file bugs)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44389 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-28 04:57:00 +00:00
Chris Lattner
a5d4a4e33e commit testcase I forgot to svn add. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44383 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 22:43:37 +00:00
Chris Lattner
789db09cde Fix a crash on invalid code due to memcpy lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44378 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 22:14:42 +00:00
Andrew Lenharth
19914ed97f something wrong with this opt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44370 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 18:31:30 +00:00
Anton Korobeynikov
9bdcb393ae Add testcase for last llvm-gcc tweaks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44368 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 18:21:29 +00:00
Duncan Sands
dc024674ff Fix PR1146: parameter attributes are longer part of 
the function type, instead they belong to functions
and function calls.  This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll).  Hopefully
a bitcode guru (who might that be? :) ) will fix it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44359 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 13:23:08 +00:00
Zhou Sheng
f19341dec7 Make this pass for CYGWIN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44354 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 06:23:59 +00:00
Zhou Sheng
515a641dac Make this testcase compatible with CYGWIN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44353 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 06:17:01 +00:00
Dan Gohman
ecb85ef713 Change &| to |&. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44345 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 00:50:57 +00:00
Dan Gohman
88e84d1f20 Change grep '' to grep {}. 
Change 2>&1 | to |&.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44344 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 00:10:35 +00:00
Dan Gohman
08e581eda7 Don't redirect llvm-as's stderr to llvm-dis. 
Change grep '' to grep {}.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44343 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 00:07:33 +00:00
Dan Gohman
b51947817d Remove unnecessary && from the RUN lines of this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44342 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-27 00:03:38 +00:00
Dan Gohman
77003040b2 Don't lower srem/urem X%C to X-X/C*C unless the division is actually 
optimized. This avoids creating illegal divisions when the combiner is
running after legalize; this fixes PR1815. Also, it produces better
code in the included testcase by avoiding the subtract and multiply
when the division isn't optimized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44341 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-26 23:46:11 +00:00
Owen Anderson
00a6d1448d Allow GVN to eliminate read-only function calls when it can detect that they are redundant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44323 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-26 02:26:36 +00:00
Nick Lewycky
c54c561c9f Add new SCEV, SCEVSMax. This allows LLVM to analyze do-while loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44319 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 22:41:31 +00:00
Chris Lattner
cfa597569d Implement PR1822 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44318 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 21:27:53 +00:00
Duncan Sands
827cde1c83 Fix PR1816. If a bitcast of a function only exists because of a 
trivial difference in function attributes, allow calls to it to
be converted to direct calls.  Based on a patch by Török Edwin.
While there, move the various lists of mutually incompatible
parameters etc out of the verifier and into ParameterAttributes.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44315 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 14:10:56 +00:00
Chris Lattner
8a594489bf Fix a long standing deficiency in the X86 backend: we would 
sometimes emit "zero" and "all one" vectors multiple times,
for example:

_test2:
	pcmpeqd	%mm0, %mm0
	movq	%mm0, _M1
	pcmpeqd	%mm0, %mm0
	movq	%mm0, _M2
	ret

instead of:

_test2:
	pcmpeqd	%mm0, %mm0
	movq	%mm0, _M1
	movq	%mm0, _M2
	ret

This patch fixes this by always arranging for zero/one vectors
to be defined as v4i32 or v2i32 (SSE/MMX) instead of letting them be
any random type.  This ensures they get trivially CSE'd on the dag.
This fix is also important for LegalizeDAGTypes, as it gets unhappy
when the x86 backend wants BUILD_VECTOR(i64 0) to be legal even when
'i64' isn't legal.

This patch makes the following changes:

1) X86TargetLowering::LowerBUILD_VECTOR now lowers 0/1 vectors into
   their canonical types.
2) The now-dead patterns are removed from the SSE/MMX .td files.
3) All the patterns in the .td file that referred to immAllOnesV or
   immAllZerosV in the wrong form now use *_bc to match them with a
   bitcast wrapped around them.
4) X86DAGToDAGISel::SelectScalarSSELoad is generalized to handle 
   bitcast'd zero vectors, which simplifies the code actually.
5) getShuffleVectorZeroOrUndef is updated to generate a shuffle that
   is legal, instead of generating one that is illegal and expecting
   a later legalize pass to clean it up.
6) isZeroShuffle is generalized to handle bitcast of zeros.
7) several other minor tweaks.

This patch is definite goodness, but has the potential to cause random
code quality regressions.  Please be on the lookout for these and let 
me know if they happen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44310 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-25 00:24:49 +00:00
Chris Lattner
9a5bdad0cc upgrade this test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44298 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-24 05:39:29 +00:00
Chris Lattner
9e513acd31 Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44296 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-23 22:42:31 +00:00
Duncan Sands
e4dc717585 Ding dong, the DoesntAccessMemoryFns and 
OnlyReadsMemoryFns tables are dead!  We
get more, and more accurate, information
from gcc via the readnone and readonly
function attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44288 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-23 19:30:27 +00:00
Chris Lattner
42b5e08e71 Fix a bug where we'd try to find a scev value for a bitcast operand, 
even though the bitcast operand did not have integer type.  This fixes
PR1814.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44286 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-23 08:46:22 +00:00
Chris Lattner
eec8b9a7d6 Fix PR1817. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44284 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 23:47:13 +00:00
Duncan Sands
73d4bb6676 Turn invokes of nounwind functions into ordinary calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44280 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 22:24:59 +00:00
Duncan Sands
920653d41e Teach alias analysis about readnone/readonly functions. 
Based on a patch by Török Edwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44279 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 21:43:27 +00:00
Duncan Sands
5ef7be79e0 Readonly/readnone functions are allowed to throw 
exceptions, so don't turn invokes of them into
calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44278 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 21:40:06 +00:00
Nick Lewycky
4ac0e8da4a Create nodes for inline asm so that we don't crash looking for the node later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44267 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-22 03:07:37 +00:00
Duncan Sands
baccd5872e Fix a bug in which node A is replaced by node B, but later 
node A gets back into the DAG again because it was hiding in
one of the node maps: make sure that node replacement happens
in those maps too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44263 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-21 16:43:19 +00:00
Nick Lewycky
cf96db2c1d Be more careful when transforming | to +. Patch from Wojciech Matyjewicz. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44248 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-20 08:24:44 +00:00
Chris Lattner
cec5f3003f Testcase for PR1811 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44244 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-19 21:43:22 +00:00
Dan Gohman
089617d9e3 Add support in SplitVectorOp for remainder operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44233 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-19 15:15:03 +00:00
Chris Lattner
ef6c875dfa fix bogus test that the more strict lexer is finding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44216 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-18 18:26:45 +00:00
Nate Begeman
b348d18caf Add support for vectors to int <-> float casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-17 03:58:34 +00:00
Evan Cheng
6542481a6d Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44196 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-16 23:55:08 +00:00
Dale Johannesen
d81ae56fa2 Testcase from PR 1508 (although its's somewhat 
orthogonal to the main problem there)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44194 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-16 23:16:35 +00:00
Chris Lattner
a7d1ab0ab3 Fix PR1800 by correcting mistaken logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44188 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-16 06:04:17 +00:00
Anton Korobeynikov
4e1a0e386c Reverted r44163 per request 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 18:33:16 +00:00
Evan Cheng
5d446265c7 Fix a thinko in post-allocation coalescer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44166 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 08:13:29 +00:00
Nick Lewycky
65e2da3b4d Fix handling of overflow in loop calculation by adding new UDiv SCEV. This SCEV 
is disabled in the sense that it will refuse to create one from a UDiv
instruction, until the code is better tested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44163 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-15 06:30:50 +00:00
Duncan Sands
7e9ab25a85 Un XFAIL these tests, now that Bill has backported 
the fix from 4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44115 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 13:40:53 +00:00
Anton Korobeynikov
9de1934099 Fix PIC jump table codegen on x86-32/linux. In fact, such thing should be applied 
to all targets uses GOT-relative offsets for PIC (Alpha?)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44108 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 09:18:41 +00:00
Duncan Sands
f9572a4c2b XFAIL these tests until the fix gets backported 
from llvm-gcc-4.2 to 4.0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44103 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 07:42:50 +00:00
Chris Lattner
1b12d8855d Implement PR1796 and Transforms/SimplifyCFG/noreturn-call.ll 
by inserting unreachable after no-return calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44099 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-14 06:19:25 +00:00
Chris Lattner
59ab338882 upgrade test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44067 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 21:42:48 +00:00
Chris Lattner
b42c8f7101 Implement PR1786 by iterating between dead cycle elimination 
and simplifycfg in the rare cases when it is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44044 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-13 07:32:38 +00:00
Arnold Schwaighofer
38ada868f2 Update tailcall code to include inline attribute operand for memcpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43978 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-10 10:48:01 +00:00
Evan Cheng
9858c348d7 Fix tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43961 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 20:46:00 +00:00
Chris Lattner
7b52fe7272 Tighten up a check for folding away loads from (newly constant) globals. This 
fixes a crash on Transforms/GlobalOpt/2007-11-09-GEP-GEP-Crash.ll and 
rdar://5585488.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43949 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 17:33:02 +00:00
Duncan Sands
27b12384e6 Thanks to the XTARGET line, this test should still 
be run on darwin, but I have no way of checking...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43945 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 13:50:25 +00:00
Duncan Sands
38c576c56e Check that the first and third characters, s and u, 
are accessed with an alignment of 2 not 1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43932 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 07:47:29 +00:00
Duncan Sands
506f9089a4 Check that accesses to the second short, t, have 
an alignment of 2 rather than 4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43931 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-09 07:46:02 +00:00
Devang Patel
dbaf378350 Run this test only on darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43912 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 22:26:46 +00:00
Andrew Lenharth
b410df995c Better check 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43897 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 18:45:15 +00:00
Andrew Lenharth
ab9338eb9f Fix PR1780 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 17:39:28 +00:00
Lauro Ramos Venancio
e0cb36b9fb [ARM] Implement __builtin_thread_pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43892 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 17:20:05 +00:00
Evan Cheng
4471194d69 If both parts of smul_lohi, etc. are used, don't simplify. If only one part is used, try simplify it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43888 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 09:25:29 +00:00
Bill Wendling
033903c37b Add testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-07 19:36:26 +00:00
Tanya Lattner
a57506eea4 Implement the XTARGET feature for PR1778 
This will mark a test as PASS for all targets specified. It will override whatever is in XFAIL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 22:32:17 +00:00
Chris Lattner
cf5008a792 Implement PR1777 by detecting dependent phis that 
all compute the same value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43777 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 21:52:06 +00:00
Evan Cheng
1fd15ba961 Add pseudo dependency to force two-address instruction to be scheduled after 
other uses. There was a overly restricted check that prevented some obvious
cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43762 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 08:44:59 +00:00
Chris Lattner
9907cb12ae Fix PR1774 and BasicAA/2007-11-05-SizeCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43756 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-06 05:58:42 +00:00
Dan Gohman
80176319f3 Add support for vector remainder operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 23:35:22 +00:00
Dan Gohman
cff550995b Fix an abort in instcombine when folding creates a vector rem instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 23:16:33 +00:00
Dale Johannesen
eb57ea7ea2 Make labels work in asm blocks; allow labels as 
parameters.  Rename ValueRefList to ParamList
in AsmParser, since its only use is for parameters.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43734 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 21:20:28 +00:00
Devang Patel
5d01aa484f If a value is incoming from outside the loop then the value does not need remapping and the value is never tracked through LastValueMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 19:32:30 +00:00
Lauro Ramos Venancio
8699a97a2e [ARM] Fix code generation for: 
static __thread struct {
    int a;
    int b;
} teste = {0, 0};



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43722 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 18:33:37 +00:00
Evan Cheng
5031fd2d32 Skip over deleted val#'s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 06:46:45 +00:00
Evan Cheng
5942efb0e5 Handle cases where a register and one of its super-register are both marked as 
defined on the same instruction. This fixes PR1767.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43699 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-05 03:11:55 +00:00