Commit Graph

5202 Commits

Author SHA1 Message Date
Evan Cheng
7ebc06bfd8 Yet another nasty spiller bug.
%ecx = op
store %cl<kill>, (addr)
(addr) = op %al

It's not safe to unfold the last operand and eliminate store even though %cl is marked kill. It's a sub-register use which means one of its super-register(s) may be used below.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 00:49:28 +00:00
Dan Gohman
42ac929ed9 Fix a bug in the ComputeMaskedBits logic for multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 00:35:55 +00:00
Bill Wendling
12f33baa8a Removing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 23:56:22 +00:00
Anton Korobeynikov
70e616fa0b Use target triple in tests, not 'realign-stack=0' option. Per request.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50778 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 23:09:29 +00:00
Owen Anderson
f092b64a49 Testcase for r50770.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50771 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 21:01:34 +00:00
Mikhail Glushenkov
2e9e0c2951 Move test files around a bit - fixes the reported number of test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:16:20 +00:00
Mikhail Glushenkov
76b1b24dc8 Use edge weights to choose the right linker based on input language names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:15:12 +00:00
Mikhail Glushenkov
978d498e40 Add a --linker command-line option, make all tests pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50755 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:13:00 +00:00
Mikhail Glushenkov
ceda1734cc Add two (currently failing) tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50752 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:11:21 +00:00
Mikhail Glushenkov
35a85e8453 Take object file as input and handle files with the same name correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50749 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 18:10:20 +00:00
Mikhail Glushenkov
3c30e6c653 First small tests for llvmc2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 17:24:54 +00:00
Duncan Sands
c8d9fe6bf9 Testcase for PR2292.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50718 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 14:56:40 +00:00
Evan Cheng
21037da713 Fix PR2287. Darwin passes mmx values in register in 64-mode, not Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50716 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 07:23:50 +00:00
Dan Gohman
23e1df8b8d Correct the value of LowBits in srem and urem handling in
ComputeMaskedBits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 00:51:48 +00:00
Chris Lattner
8554cc2ea7 Fix a crash when threading a block that includes a MRV call result.
DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.

This fixes PR2285.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 20:21:22 +00:00
Mon P Wang
63307c335a Added addition atomic instrinsics and, or, xor, min, and max.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 19:05:59 +00:00
Chris Lattner
b61bfdb56e no need for eh info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50658 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 18:24:33 +00:00
Dan Gohman
a779a9899a Add AsmPrinter support for emitting a directive to declare that
the code being generated does not require an executable stack.

Also, add target-specific code to make use of this on Linux
on x86. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 00:28:39 +00:00
Owen Anderson
46bb007014 Fix PR1098 by correcting the postdominators analysis.
Patch by Florian Brandner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 21:07:35 +00:00
Evan Cheng
5759f97f50 Select vector shift with non-immediate i32 shift amount operand by first moving the operand into the right register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50619 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 09:15:50 +00:00
Evan Cheng
22b942aa4d Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 00:52:09 +00:00
Chris Lattner
4d5b8ccd07 verify builtin optimization works like gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50594 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 22:07:34 +00:00
Dan Gohman
1d9cd50677 Fix a mistake in the computation of leading zeros for udiv.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 21:30:02 +00:00
Chris Lattner
e818f770bb strength reduce exp2 into ldexp, rdar://5852514
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 18:43:35 +00:00
Chris Lattner
0b11cbacce specify an arch for non-x86 hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 15:11:58 +00:00
Dan Gohman
fddaa3193c Update old-style syntax in some "not grep" tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50560 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 23:50:07 +00:00
Dale Johannesen
f1e94f74e5 New test for bug fixed in 50545.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50548 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 22:50:14 +00:00
Dan Gohman
e85b7585e9 Fix an overaggressive SimplifyDemandedBits optimization on urem. This
fixes the 254.gap regression on x86 and the 403.gcc regression on x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 19:13:24 +00:00
Bill Wendling
4fd49e4a2f Adding testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50536 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 18:41:09 +00:00
Chris Lattner
6bf30ab347 don't randomly miscompile seto/setuo just because we are in
ffastmath mode.  This fixes rdar://5902801, a miscompilation
of gcc.dg/builtins-8.c.

Bill, please pull this into Tak.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 07:26:11 +00:00
Chris Lattner
2facbddb76 fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 06:16:48 +00:00
Chris Lattner
b1747f0b23 instcombine does memset optzns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50518 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 06:16:38 +00:00
Chris Lattner
330a0c1527 simplifylibcalls doesn't optimize llvm.memmove, instcombine does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50517 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 06:14:24 +00:00
Chris Lattner
042232df74 move some tests from libcall optimizer suite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 06:13:48 +00:00
Arnold Schwaighofer
d2ef523673 Really commit the test checking the argument lowering behaviour on x86-64 :).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 09:19:47 +00:00
Arnold Schwaighofer
30e62c098b Tail call optimization improvements:
Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.

Initial PowerPC tail call implementation:

Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).  
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if 
  caller and callee are fastcc
  call is a tail call (in tail call position, call followed by ret)
  no variable argument lists or byval arguments
  option -tailcallopt is enabled
Supported:
 * non pic tail calls on linux/darwin
 * module-local tail calls on linux(PIC/GOT)/darwin(PIC)
 * inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.

A test checking the argument lowering behaviour on x86-64 was added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 09:16:33 +00:00
Owen Anderson
0cad8444cc Move this test to LoopDeletion, where it now passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50474 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 07:17:22 +00:00
Chris Lattner
69ea9d2308 move lowering of llvm.memset -> store from simplify libcalls
to instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 06:39:11 +00:00
Chris Lattner
4103bb9fc6 no reason for simplifylibcalls to simplify intrinsics, instcombine does
a fine job.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 06:12:15 +00:00
Chris Lattner
0c58cacb7a remove redundant check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50469 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 06:06:37 +00:00
Owen Anderson
9dcace3caf Fix a bug in memcpyopt where the memcpy-memcpy transform was never being applied because
we were checking for it in the wrong order.  This caused a miscompilation because the
return slot optimization assumes that the call it is dealing with is NOT a memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:26:06 +00:00
Chris Lattner
40700fe683 don't eliminate load from volatile value on paths where the load is dead.
This fixes the second half of PR2262


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:28:22 +00:00
Chris Lattner
68608e4dd0 make this test reduced and *valid*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50429 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:25:32 +00:00
Chris Lattner
54545ac023 fix a subtle volatile handling bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:13:43 +00:00
Chris Lattner
00487995ea new testcase for PR2094. The inline asms should not pin allocas to the
stack anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50397 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 05:53:29 +00:00
Chris Lattner
cea1fdd174 don't delete the last store to an alloca if the store is volatile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50390 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:58:38 +00:00
Chris Lattner
3fb2968f2f make the vector conversion magic handle multiple results.
We now compile test2/test3 to:

_test2:
	## InlineAsm Start
	set %xmm0, %xmm1
	## InlineAsm End
	addps	%xmm1, %xmm0
	ret
_test3:
	## InlineAsm Start
	set %xmm0, %xmm1
	## InlineAsm End
	paddd	%xmm1, %xmm0
	ret

as expected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:48:56 +00:00
Chris Lattner
41f6259a4b add support for multiple return values in inline asm. This is a step
towards PR2094.  It now compiles the attached .ll file to:

_sad16_sse2:
	movslq	%ecx, %rax
	## InlineAsm Start
	%ecx %rdx %rax %rax %r8d %rdx %rsi
	## InlineAsm End
	## InlineAsm Start
	set %eax
	## InlineAsm End
	ret

which is pretty decent for a 3 output, 4 input asm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50386 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:29:54 +00:00
Evan Cheng
8509fcf8eb Another extract_subreg coalescing bug.
e.g.
vr1024<2> extract_subreg vr1025, 2
If vr1024 do not have the same register class as vr1025, it's not safe to coalesce this away. For example, vr1024 might be a GPR32 while vr1025 might be a GPR64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 01:41:44 +00:00
Evan Cheng
8c2f662d84 Add -march=x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 23:31:41 +00:00