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57f4b03621
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12975 Commits

Author SHA1 Message Date
Eli Friedman
57f4b03621 Remove dead code. Fix associated test to use FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131424 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 21:28:22 +00:00
Eli Friedman
482feb33b2 Make fast-isel work correctly s/uadd.with.overflow intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131420 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 21:06:17 +00:00
Eli Friedman
2586b8f936 Basic fast-isel of extractvalue. Not too helpful on its own, given the IR clang generates for cases like this, but it should become more useful soon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131417 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 20:27:46 +00:00
Rafael Espindola
6469540adf sets bit 0 of the function address of thumb function in .symtab 
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)

Patch by Koan-Sin Tan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131406 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 16:17:21 +00:00
Rafael Espindola
0e00c6c561 Don't do tail calls in a function that call setjmp. The stack might be 
corrupted when setjmp returns again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131399 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 03:05:33 +00:00
Benjamin Kramer
dae3b57b91 Disable test harder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131363 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-14 19:30:39 +00:00
Stuart Hastings
47242e8680 Disable this test while I revise it. rdar://problem/9267970 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131350 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-14 18:39:05 +00:00
Benjamin Kramer
10fcfb53fd SimplifyCFG: Use ComputeMaskedBits to prune dead cases from switch instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131345 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-14 15:57:25 +00:00
Stuart Hastings
67f071e697 Avoid combining GEPs that might overflow at runtime. 
rdar://problem/9267970

Patch by Julien Lerouge!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131339 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-14 05:55:10 +00:00
Rafael Espindola
a3f88148e6 Don't produce a vmovntdq if we don't have AVX support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131330 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-14 00:30:01 +00:00
Rafael Espindola
0cb3563363 Move test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131315 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 21:35:17 +00:00
Rafael Espindola
8d9e1c2aa0 Move test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131314 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 21:33:32 +00:00
Galina Kistanova
6f0b5e4a22 Move platform-dependent test to appropriate directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131302 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 19:45:05 +00:00
Rafael Espindola
3fa8283744 Make codegen able to handle values of empty types. This is one way 
to fix PR9900. I will keep it open until sable is able to comment on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131294 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 15:18:06 +00:00
Stuart Hastings
88882247d2 Since I can't reproduce the failures from 131261, re-trying with a 
simplified version.  <rdar://problem/9298790>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131274 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 00:51:54 +00:00
Stuart Hastings
8ad145d729 Revert 131266 and 131261 due to buildbot complaints. 
rdar://problem/9298790


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131269 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 00:15:17 +00:00
Stuart Hastings
4c576ca9db Tweak 131261 (thumb2-cbnz.ll) to generate the intended cbnz. 
rdar://problem/9298790


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131266 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-13 00:10:03 +00:00
Stuart Hastings
5adc646380 Non-fast-isel followup to 129634; correctly handle branches controlled 
by non-CMP expressions.  The executable test case (129821) would test
this as well, if we had an "-O0 -disable-arm-fast-isel" LLVM-GCC
tester.  Alas, the ARM assembly would be very difficult to check with
FileCheck.

The thumb2-cbnz.ll test is affected; it generates larger code (tst.w
vs. cmp #0), but I believe the new version is correct.
rdar://problem/9298790


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131261 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-12 23:36:41 +00:00
Galina Kistanova
60bf5c3197 Correction. Use explicit target triple in the test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131252 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-12 21:55:34 +00:00
Evan Cheng
7139d35165 Re-enable branchfolding common code hoisting optimization. Fixed a liveness test bug and also taught it to update liveins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131241 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-12 20:30:01 +00:00
Stuart Hastings
007cfce220 Move this test to CodeGen/Thumb. rdar://problem/9416774 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131196 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 19:41:28 +00:00
Devang Patel
4243e67bd5 Identify end of prologue (and beginning of function body) using DW_LNS_set_prologue_end line table opcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131194 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 19:22:19 +00:00
Stuart Hastings
e8b9f16a4c Reduced test case. rdar://problem/9416774 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131191 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 17:29:25 +00:00
Owen Anderson
18901d63bf Fix encoding of Thumb BLX register instructions. Patch by Koan-Sin Tan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131189 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 17:00:48 +00:00
Stuart Hastings
de5d5ded64 And lo, I was given a testcase for 131152. rdar://problem/9416774 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131184 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 16:00:21 +00:00
Nadav Rotem
42febc6e99 Fixes a bug in the DAGCombiner. LoadSDNodes have two values (data, chain). 
If there is a store after the load node, then there is a chain, which means
that there is another user. Thus, asking hasOneUser would fail. Instead we
ask hasNUsesOfValue on the 'data' value.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131183 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 14:40:50 +00:00
Nadav Rotem
4301222525 Add custom lowering of X86 vector SRA/SRL/SHL when the shift amount is a splat vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131179 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 08:12:09 +00:00
Rafael Espindola
41cdc16e73 Revert 131172 as it is causing clang to miscompile itself. I will try 
to provide a reduced testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131176 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 03:27:17 +00:00
Evan Cheng
7e20a574eb Add a late optimization to BranchFolding that hoist common instruction sequences 
at the start of basic blocks to their common predecessor. It's actually quite
common (e.g. about 50 times in JM/lencod) and has shown to be a nice code size
benefit. e.g.

        pushq   %rax
        testl   %edi, %edi
        jne     LBB0_2
## BB#1:
        xorb    %al, %al
        popq    %rdx
        ret
LBB0_2:
        xorb    %al, %al
        callq   _foo
        popq    %rdx
        ret

=>

        pushq   %rax
        xorb    %al, %al
        testl   %edi, %edi
        je      LBB0_2
## BB#1:
        callq   _foo
LBB0_2:
        popq    %rdx
        ret

rdar://9145558


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131172 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 01:03:01 +00:00
Rafael Espindola
88a5fb8f8f Add triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131169 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 23:14:29 +00:00
Rafael Espindola
6253c7ca60 Produce a __debug_frame section on darwin ARM when appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131151 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 21:04:45 +00:00
Rafael Espindola
e3a0e987f3 On MachO, unlike ELF, there should be no relocation to produce the CIE pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131149 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 20:59:42 +00:00
Rafael Espindola
12f197b3bc The EH symbols are only needed in eh_frame, not debug_frame. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131146 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 19:51:53 +00:00
Rafael Espindola
e29887b4ee Use .cfi_sections to put the unwind info in .debug_frame when possible. With 
this clang will use .debug_frame in, for example,
clang -g -c -m32 test.c
This matches gcc's behaviour. It looks like .debug_frame is a bit bigger
than .eh_frame, but has the big advantage of not being allocated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 18:39:09 +00:00
Rafael Espindola
0d450dc659 In a debug_frame the cfi offset is to the start of the debug_frame section! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131129 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 15:20:23 +00:00
Justin Holewinski
f2453a3f2f PTX: add test cases for cvt, fneg, and selp 
Patch by Dan Bailey

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131128 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 14:53:13 +00:00
Rafael Espindola
40a7dbbeff Add support for producing .deubg_frame sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131121 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 03:54:12 +00:00
Benjamin Kramer
f51190b697 X86: Add a bunch of peeps for add and sub of SETB. 
"b + ((a < b) ? 1 : 0)" compiles into
	cmpl	%esi, %edi
	adcl	$0, %esi
instead of
	cmpl	%esi, %edi
	sbbl	%eax, %eax
	andl	$1, %eax
	addl	%esi, %eax

This saves a register, a false dependency on %eax
(Intel's CPUs still don't ignore it) and it's shorter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131070 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-08 18:36:07 +00:00
Duncan Sands
e864b5b840 The comparision "max(x,y)==x" is equivalent to "x>=y". Since the max is 
often expressed as "x >= y ? x : y", there is a good chance we can extract
the existing "x >= y" from it and use that as a replacement for "max(x,y)==x".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131049 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-07 16:56:49 +00:00
Jakob Stoklund Olesen
bf4e10f2f6 Emit a proper error message when register allocators run out of registers. 
This can't be just an assertion, users can always write impossible inline
assembly. Such an assembly statement should be included in the error message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131024 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 21:58:30 +00:00
Nick Lewycky
308fba5fe2 It's valid to take the blockaddress of a different function, so remove this 
assert in the bitcode writer. No change needed because the ValueEnumerator holds
a whole-module numbering anyhow. Fixes PR9857!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131016 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 21:09:44 +00:00
Galina Kistanova
9dabb78519 Move few target-dependant tests to appropriate directories. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131002 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 18:24:46 +00:00
Rafael Espindola
8b3db735f1 Pass -disable-cfi to llc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130999 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 18:01:58 +00:00
Rafael Espindola
e38c61597e Pass -disable-cfi. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130995 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 17:44:58 +00:00
Justin Holewinski
ab0145d2a9 PTX: add PTX 2.3 language target 
Patch by Wei-Ren Chen

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130980 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 11:40:36 +00:00
Duncan Sands
5389210e63 Fix PR9820: a read-only call differs from a load in that a load doesn't 
return the pointer being dereferenced, it returns the pointee, but a call
might return the pointer itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130979 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 10:30:37 +00:00
Eli Friedman
5e926ac651 Re-revert r130877; it's apparently causing a regression on 197.parser, 
possibly related to cbnz formation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130977 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-06 05:23:07 +00:00
Eli Friedman
b6e7cd655c PR9838: Fix transform introduced in r127064 to not trigger when only one side of the icmp is an exact shift. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130954 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-05 21:59:18 +00:00
Rafael Espindola
7af1a59382 Don't produce a __debug_frame. 
I tested both gdb on a bootstrapped clang and and the gdb testsuite on OS X (snow leopard)
and both are happy using __eh_frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130937 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-05 18:43:39 +00:00
Galina Kistanova
300c1a11c8 Many LLVM tests relies on standard output stream be in the binary mode. Which is not always the case (on Windows in particular). The patch adds a test to verify that the standard output stream is actually in the binary mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130936 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-05 18:40:27 +00:00