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Author SHA1 Message Date
Nick Lewycky
9143699260 Don't eliminate blocks that are only reachable by unwind_to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 08:50:23 +00:00
Chris Lattner
02b6d25a27 Add ScheduleDAG support for copytoreg where the src/dst register are 
in different register classes, e.g. copy of ST(0) to RFP*.  This gets
some really trivial inline asm working that plops things on the top of
stack (PR879)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48105 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 08:49:15 +00:00
Chris Lattner
5c927500c8 add some code to support cross-register class copying from 
RST -> RFP{32/64/80}.  We only handle ST(0) for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48104 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 08:46:19 +00:00
Tanya Lattner
76806b6a43 Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48103 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 08:16:40 +00:00
Chris Lattner
90b347dc90 rearrange some code, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48101 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:58:04 +00:00
Chris Lattner
d9c4c450bf fix 80 col violation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48100 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:51:01 +00:00
Nick Lewycky
3f4cc3101e Firstly, having a BranchInst isn't exclusive with having an unwind_to. 
Secondly, we have to check whether the branch is actually pointing to the block
with the unwind in it. We could have gotten here because of the unwind_to alone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:50:37 +00:00
Chris Lattner
8dc023f684 claim ST(x) registers are 80 bits, which is true. This doesn't affect 
codegen yet because these can't be spilled (they don't exist until after RA).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48098 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:49:01 +00:00
Chris Lattner
d43d85ccc9 extend fp values with FP_EXTEND not FP_ROUND. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:47:22 +00:00
Nick Lewycky
db96ae9607 A BB that unwind_to an "unwind" inst is that same as one that doesn't unwind_to 
at all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48096 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:36:38 +00:00
Gordon Henriksen
3b646de036 This patch cleans up the OCaml bindings so that they format nicely with 
ocamldoc. It does not yet hook into the build system, though.

Patch by Erick Tryzelaar!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48095 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:17:38 +00:00
Chris Lattner
afb23f48a4 rename FP_SETRESULT -> FP_SET_ST0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48094 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:08:44 +00:00
Chris Lattner
6fa2f9c636 rename FpGETRESULT32 -> FpGET_ST0_32 etc. Add support for 
isel'ing value preserving FP roundings from one fp stack reg to another
into a noop, instead of stack traffic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48093 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 07:05:32 +00:00
Chris Lattner
ce6e492997 reduce this testcase more 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48092 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 06:57:21 +00:00
Chris Lattner
67f453aae7 Finish implementing a readme entry: when inserting an i64 variable 
into a vector of zeros or undef, and when the top part is obviously
zero, we can just use movd + shuffle.  This allows us to compile
vec_set-B.ll into:

_test3:
	movl	$1234567, %eax
	andl	4(%esp), %eax
	movd	%eax, %xmm0
	ret

instead of:

_test3:
	subl	$28, %esp
	movl	$1234567, %eax
	andl	32(%esp), %eax
	movl	%eax, (%esp)
	movl	$0, 4(%esp)
	movq	(%esp), %xmm0
	addl	$28, %esp
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:42:06 +00:00
Nick Lewycky
529de8a457 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:24:34 +00:00
Nick Lewycky
6af31aab63 Update the inliner and simplifycfg to handle unwind_to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:10:13 +00:00
Nick Lewycky
c6694228fa Two things. Preserve the unwind_to when splitting a BB. 
Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:04:48 +00:00
Nick Lewycky
c0d025f54f Prune the unwind_to labels on BBs that don't need them. Another step in the 
removal of invoke, PR1269.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48084 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 04:55:16 +00:00
Chris Lattner
f68cbceb17 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48064 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 01:08:22 +00:00
Chris Lattner
62098040a1 Implement a readme entry, compiling 
#include <xmmintrin.h>
__m128i doload64(short x) {return _mm_set_epi16(0,0,0,0,0,0,0,1);}

into:
	movl	$1, %eax
	movd	%eax, %xmm0
	ret

instead of a constant pool load.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48063 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 01:05:04 +00:00
Chris Lattner
8aca4b13a8 upgrade this test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48062 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 00:32:10 +00:00
Chris Lattner
da8de316a8 make this test harder 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 00:30:06 +00:00
Chris Lattner
f9d95c8835 Fix two problems in SelectionDAGLegalize::ExpandBUILD_VECTOR's handling 
of BUILD_VECTORS that only have two unique elements:

1. The previous code was nondeterminstic, because it walked a map in
   SDOperand order, which isn't determinstic.
2. The previous code didn't handle the case when one element was undef
   very well.  Now we ensure that the generated shuffle mask has the
   undef vector on the RHS (instead of potentially being on the LHS)
   and that any elements that refer to it are themselves undef.  This
   allows us to compile CodeGen/X86/vec_set-9.ll into:

_test3:
	movd	%rdi, %xmm0
	punpcklqdq	%xmm0, %xmm0
	ret

instead of:

_test3:
	movd	%rdi, %xmm1
	#IMPLICIT_DEF %xmm0
	punpcklqdq	%xmm1, %xmm0
	ret

... saving a register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48060 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 00:29:42 +00:00
Chris Lattner
f3ba434781 Teach SD some vector identities, allowing us to compile vec_set-9 into: 
_test3:
	movd	%rdi, %xmm1
	#IMPLICIT_DEF %xmm0
	punpcklqdq	%xmm1, %xmm0
	ret

instead of:

_test3:
	#IMPLICIT_DEF %rax
	movd	%rax, %xmm0
	movd	%rdi, %xmm1
	punpcklqdq	%xmm1, %xmm0
	ret

This is still not ideal.  There is no reason to two xmm regs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 23:43:36 +00:00
Chris Lattner
19f7969f81 1) Improve comments. 
2) Don't try to insert an i64 value into the low part of a 
   vector with movq on an x86-32 target.  This allows us to 
   compile:

__m128i doload64(short x) {return _mm_set_epi16(0,0,0,0,0,0,0,1);}

into:

_doload64:
	movaps	LCPI1_0, %xmm0
	ret

instead of:

_doload64:
	subl	$28, %esp
	movl	$0, 4(%esp)
	movl	$1, (%esp)
	movq	(%esp), %xmm0
	addl	$28, %esp
	ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48057 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 22:59:52 +00:00
Chris Lattner
c9517fb6eb minor simplifications to this code, don't create a dead 
SCALAR_TO_VECTOR on paths that end up not using it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48056 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 22:48:29 +00:00
Chris Lattner
b607f9c822 This one looks easy, add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48055 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 22:32:39 +00:00
Chris Lattner
f658ad10f6 move these to the appropriate file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 22:28:45 +00:00
Nick Lewycky
6c36a0f9ee Not all users of a BB are Instructions any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 07:48:41 +00:00
Nick Lewycky
6456d8639b Load the symbols first so that the interpreter constructor can find them when 
it tries to initialize them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48046 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 02:49:45 +00:00
Andrew Lenharth
ebb8d7ba16 much simpler test case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48045 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 02:05:22 +00:00
Dan Gohman
cdff0d6b04 Remove unused runPass methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48044 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 01:43:56 +00:00
Dale Johannesen
7f96f3912e More ppc32 byval handling (bug fixes). Things 
are looking pretty good now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48043 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 01:41:42 +00:00
Evan Cheng
27b7db549e Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48042 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 00:58:38 +00:00
Dan Gohman
a2fcff4d97 Add support for calls with i128 return values on ppc64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48041 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 00:19:12 +00:00
Bill Wendling
d93ae242d3 Something that kills a super-register also 
kills the sub-register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48038 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 23:45:15 +00:00
Evan Cheng
a8de38f351 Fix a typo. It's causing consumer-typeset to miscompile. Perhaps more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 22:39:49 +00:00
Dan Gohman
4e35595368 There is no killUse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48034 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 22:24:41 +00:00
Andrew Lenharth
b009d220aa add dropped section test case for PR2123 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 21:19:43 +00:00
Devang Patel
c6791d9fca Add new sretpromotion pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48032 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 21:07:34 +00:00
Bill Wendling
5f5bf3a3fd PPC64 passes arguments of integral type in i64 registers, not i32. Reflect this 
by promoting smaller integral values (i32 at this point) to i64, then truncating
to get the wanted size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48030 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:49:02 +00:00
Dan Gohman
9ed06db5c8 Add support for lowering 128-bit shifts on ppc64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48029 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:36:53 +00:00
Dale Johannesen
8419dd6aa6 Next bits of PPC byval handling. Basically functional 
but there are bugs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48028 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:27:40 +00:00
Chris Lattner
af8ee84fe5 Add support for ppc64 shifts with 7-bit (oversized) shift amount (e.g. PPCshl). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48027 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:18:24 +00:00
Chris Lattner
49bd37d369 Replace SDT_PPCShiftOp in favor of SDTIntBinOps. This allows it to work 
with 32 or 64-bit operands/results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:13:51 +00:00
Evan Cheng
d68f47c6fd Fixed a register scavenger bug. If a def is re-defining part of a super register, there must be an implicit def of the super-register on the MI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48024 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:12:54 +00:00
Andrew Lenharth
c77e4d1569 only extract main if the user didn't specify anything to extract 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48023 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:10:54 +00:00
Devang Patel
22a8a734e9 RetVal is not used when there are more then one return operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48022 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:08:07 +00:00
Andrew Lenharth
6a021a4dda make error message reflect default search function name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48021 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:07:24 +00:00