Commit Graph

2704 Commits

Author SHA1 Message Date
Andrew Trick
d8fa01fbd7 Reapply Eli's r127852 now that the pre-RA scheduler can spill EFLAGS.
(target-specific branchless method for double-width relational comparisons on x86)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128175 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23 22:16:02 +00:00
Jakob Stoklund Olesen
28cf1156c9 Reapply r128045 and r128051 with fixes.
This will extend the ranges of debug info variables in registers until they are
clobbered.

Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.

Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128114 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 22:33:08 +00:00
Andrew Trick
c1dbd5d9c3 Revert r128045 and r128051, debug info enhancements.
Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 19:18:42 +00:00
Jakob Stoklund Olesen
e17232ee4d Dont emit 'DBG_VALUE %noreg, ...' to terminate user variable ranges.
These ranges get completely jumbled by the post-ra scheduler, and it is not
really reasonable to expect it to make sense of them.

Instead, teach DwarfDebug to notice when user variables in registers are
clobbered, and terminate the ranges there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 00:21:41 +00:00
Dan Gohman
b55d6b6a7e Fix fast-isel address mode folding to avoid folding instructions
outside of the current basic block. This fixes PR9500, rdar://9156159.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128041 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 00:04:35 +00:00
Daniel Dunbar
7a90e04fc7 Revert r127953, "SimplifyCFG has stopped duplicating returns into predecessors
to canonicalize IR", it broke a lot of things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127954 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 21:47:14 +00:00
Evan Cheng
ae16d6b972 SimplifyCFG has stopped duplicating returns into predecessors to canonicalize IR
to have single return block (at least getting there) for optimizations. This
is general goodness but it would prevent some tailcall optimizations.
One specific case is code like this:
int f1(void);
int f2(void);
int f3(void);
int f4(void);
int f5(void);
int f6(void);
int foo(int x) {
  switch(x) {
  case 1: return f1();
  case 2: return f2();
  case 3: return f3();
  case 4: return f4();
  case 5: return f5();
  case 6: return f6();
  }
}

=>
LBB0_2:                                 ## %sw.bb
  callq   _f1
  popq    %rbp
  ret
LBB0_3:                                 ## %sw.bb1
  callq   _f2
  popq    %rbp
  ret
LBB0_4:                                 ## %sw.bb3
  callq   _f3
  popq    %rbp
  ret

This patch teaches codegenprep to duplicate returns when the return value
is a phi and where the phi operands are produced by tail calls followed by
an unconditional branch:

sw.bb7:                                           ; preds = %entry
  %call8 = tail call i32 @f5() nounwind
  br label %return
sw.bb9:                                           ; preds = %entry
  %call10 = tail call i32 @f6() nounwind
  br label %return
return:
  %retval.0 = phi i32 [ %call10, %sw.bb9 ], [ %call8, %sw.bb7 ], ... [ 0, %entry ]
  ret i32 %retval.0

This allows codegen to generate better code like this:

LBB0_2:                                 ## %sw.bb
        jmp     _f1                     ## TAILCALL
LBB0_3:                                 ## %sw.bb1
        jmp     _f2                     ## TAILCALL
LBB0_4:                                 ## %sw.bb3
        jmp     _f3                     ## TAILCALL

rdar://9147433


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 17:17:39 +00:00
Nadav Rotem
06cc324b9d Add support for legalizing UINT_TO_FP of vectors on platforms which do
not have native support for this operation (such as X86).
The legalized code uses two vector INT_TO_FP operations and is faster
than scalarizing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127951 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 13:09:10 +00:00
Andrew Trick
f6325b9700 FileCheckize a test.
(one-by-one until valgrind is happy)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 00:41:39 +00:00
Eli Friedman
b6192d2a9f Revert r127852; it's apparently causing an ICE on mingw.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127909 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 21:12:29 +00:00
Eli Friedman
b4b8b0cc90 Add a target-specific branchless method for double-width relational
comparisons on x86.  Essentially, the way this works is that SUB+SBB sets
the relevant flags the same way a double-width CMP would.

This is a substantial improvement over the generic lowering in LLVM. The output
is also shorter than the gcc-generated output; I haven't done any detailed
benchmarking, though.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 02:34:11 +00:00
Benjamin Kramer
1c10b8de46 BuildUDIV: If the divisor is even we can simplify the fixup of the multiplied value by introducing an early shift.
This allows us to compile "unsigned foo(unsigned x) { return x/28; }" into
	shrl	$2, %edi
	imulq	$613566757, %rdi, %rax
	shrq	$32, %rax
	ret

instead of
	movl    %edi, %eax
	imulq   $613566757, %rax, %rcx
	shrq    $32, %rcx
	subl    %ecx, %eax
	shrl    %eax
	addl    %ecx, %eax
	shrl    $4, %eax

on x86_64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 20:39:14 +00:00
NAKAMURA Takumi
1aa7f7a997 test/CodeGen/X86/h-registers-1.ll: Add explicit -mtriple=x86_64-linux. It does not need to be checked on x86_64-win32 (aka Win64).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127800 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 04:24:40 +00:00
NAKAMURA Takumi
ede4e28ca3 test/CodeGen/X86/constant-pool-remat-0.ll: FileCheck-ize and add explicit -mtriple=x86_64-linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127775 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 23:01:31 +00:00
Cameron Zwarich
ebe8173941 The x86-64 ABI says that a bool is only guaranteed to be sign-extended to a byte
rather than an int. Thankfully, this only causes LLVM to miss optimizations, not
generate incorrect code.

This just fixes the zext at the return. We still insert an i32 ZextAssert when
reading a function's arguments, but it is followed by a truncate and another i8
ZextAssert so it is not optimized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127766 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 22:20:18 +00:00
Cameron Zwarich
7be4b7ed75 Rename a test to be more inclusive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 22:20:12 +00:00
Cameron Zwarich
0a00615b34 Add a test for i1 zeroext arguments on x86-64. We currently generate code that
conforms to the ABI, but DAGCombine could in theory recognize the sequence of
zext asserts and truncates and generate incorrect code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127754 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 20:15:44 +00:00
NAKAMURA Takumi
bfc4c983a6 test/CodeGen/X86: FileCheck-ize and add actions for x86_64-linux and x86_64-win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 13:53:07 +00:00
NAKAMURA Takumi
37947c6bad test/CodeGen/X86: Add a pattern for Win64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 13:52:51 +00:00
NAKAMURA Takumi
ddbfbcf72e test/CodeGen/X86: FileCheck-ize and add explicit -mtriple=x86_64-linux. They are useless to Win64 target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 13:52:38 +00:00
NAKAMURA Takumi
4491aa49b3 test/CodeGen/X86/byval*.ll: Win64 has not supported byval yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 13:52:20 +00:00
NAKAMURA Takumi
67bf77e8fd test/CodeGen/X86/dyn-stackalloc.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127730 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 13:52:08 +00:00
Evan Cheng
bf34a5ec22 sext(undef) = 0, because the top bits will all be the same.
zext(undef) = 0, because the top bits will be zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15 02:22:10 +00:00
Cameron Zwarich
899eaa3569 Roll r127459 back in:
Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127498 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 21:52:04 +00:00
Cameron Zwarich
53aac15a60 Fix the GCC test suite issue exposed by r127477, which was caused by stack
protector insertion not working correctly with unreachable code. Since that
revision was rolled out, this test doesn't actual fail before this fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 21:51:56 +00:00
Daniel Dunbar
950d3db5f4 Revert r127459, "Optimize trivial branches in CodeGenPrepare, which often get
created from the", it broke some GCC test suite tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127477 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:30:30 +00:00
Cameron Zwarich
592ca3fda9 Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127459 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 04:54:27 +00:00
Eric Christopher
de5e101b0d Change the x86 32-bit scheduler to register pressure and fix up the
corresponding testcases back to the previous versions.

Fixes some performance regressions only seen on 32-bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127441 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:05:58 +00:00
Stuart Hastings
03d5826164 Revert 127359; it broke lencod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127382 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:25:53 +00:00
Benjamin Kramer
7bff3e7c1b Fix mistyped CHECK lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 22:07:31 +00:00
Stuart Hastings
167831dcac Tweak test to work on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127364 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 21:35:10 +00:00
Stuart Hastings
2f5443be11 Disable this test temporarily to reduce BuildBot complaints.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127363 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 21:33:47 +00:00
Stuart Hastings
2f26fa4838 X86 byval copies no longer always_inline. <rdar://problem/8706628>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127359 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 21:10:30 +00:00
Jakob Stoklund Olesen
5d96e5a1cc Make physreg coalescing independent on the number of uses of the virtual register.
The damage done by physreg coalescing only depends on the number of instructions
the extended physreg live range covers. This fixes PR9438.

The heuristic is still luck-based, and physreg coalescing really should be
disabled completely. We need a register allocator with better hinting support
before that is possible.

Convert a test to FileCheck and force spilling by inserting an extra call. The
previous spilling behavior was dependent on misguided physreg coalescing
decisions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127351 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 19:27:06 +00:00
Jakob Stoklund Olesen
dda386c44d Delete a test case that is very sensitive to coalescer behavior.
The test is derived from an old miscompilation of
MultiSource/Benchmarks/VersaBench/8b10b which is run regularly, so we are not
losing coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 19:27:02 +00:00
Andrew Trick
5d332e0c3e This test case should work with list-ilp or list-burr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127348 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 19:17:10 +00:00
NAKAMURA Takumi
3ca99435e9 Target/X86: Tweak va_arg for Win64 not to miss taking va_start when number of fixed args > 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127328 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 11:33:15 +00:00
Eric Christopher
e11128dd9d Fix testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127298 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 00:41:41 +00:00
Benjamin Kramer
e5ef311ee3 Strip cruft.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127269 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 20:19:10 +00:00
Eric Christopher
2b24e7f3df Add a testcase for r127263.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127266 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 19:49:15 +00:00
Benjamin Kramer
c175a4bd7e X86: Fix the (saddo/ssub x, 1) -> incl/decl selection to check the right operand for 1.
Found by inspection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127247 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 15:20:20 +00:00
Eric Christopher
7c2cdb1c05 Turn on list-ilp scheduling by default on x86 and x86-64, fix up
testcases accordingly. Some are currently xfailed and will be filed
as bugs to be fixed or understood.

Performance results:

roughly neutral on SPEC
some micro benchmarks in the llvm suite are up between 100 and 150%, only
a pair of regressions that are due to be investigated

john-the-ripper saw:
10% improvement in traditional DES
8% improvement in BSDI DES
59% improvement in FreeBSD MD5
67% improvement in OpenBSD Blowfish
14% improvement in LM DES

Small compile time impact.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127208 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 02:42:25 +00:00
NAKAMURA Takumi
89be0acecf test/CodeGen/X86/vec_cast.ll: [PR8311] Add explicit -mtriple=x86_64-linux and -mtriple=x86_64-win32. Thanks to Nadav, it might be fixed in r126424.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 02:38:02 +00:00
Dan Gohman
a7a841adb8 When decling to reuse existing expressions that involve casts, ignore
bitcasts, which are really no-ops here. This fixes slowdowns on
MultiSource/Applications/aha and others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127031 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 20:46:46 +00:00
Joerg Sonnenberger
89e0f386f3 Be nice to Xcore and the XMOS assembler and avoid quoting section names
that contain only letters, digits and the characters "_" and ".".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127028 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 20:03:14 +00:00
Eli Friedman
81c5ef8649 Revert r123908; the code in question is completely untested and wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126964 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 22:33:23 +00:00
Joerg Sonnenberger
ea83b13350 Bug#9033: For the ELF assembler output, always quote the section name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126963 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 22:31:08 +00:00
Stuart Hastings
44456e86c8 Test case for r126864. Radar 9056407.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126900 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 23:41:40 +00:00
David Greene
a20244d1ba [AVX] Fix mask predicates for 256-bit UNPCKLPS/D and implement
missing patterns for them.

      Add a SIMD test subdirectory to hold tests for SIMD instruction
      selection correctness and quality.
'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126845 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 17:23:43 +00:00
Cameron Zwarich
56e3793acf Eliminate the unused CodeGenPrepare option to split critical edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 03:31:46 +00:00
Dan Gohman
0cbe91ba3b Don't re-use existing addrec expansions if they contain casts.
This fixes PR9259.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126812 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 01:34:10 +00:00
Evan Cheng
f06e6c2ba7 Catch more cases where 2-address pass should 3-addressify instructions. rdar://9002648.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 01:08:17 +00:00
Duncan Sands
377ffe3b11 Windows codegen also dies on this, so restrict to the platform it was
actually tested on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 14:22:08 +00:00
Duncan Sands
443612e165 Make this test x86 specific because the ARM backend can't handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126650 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 12:30:47 +00:00
NAKAMURA Takumi
419f232783 Target/X86: Always emit "push/pop GPRs" in prologue/epilogue and emit "spill/reload frames" for XMMs.
It improves Win64's prologue/epilogue but it would not affect ia32 and amd64 (lack of nonvolatile XMMs).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126568 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 08:47:19 +00:00
Cameron Zwarich
eee444cc4e Fix PR9324 / <rdar://problem/9052489> by handling the case where a PHI has no uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 08:06:01 +00:00
Cameron Zwarich
60c8b22dad Give a test file a more sensible name so that it can hold more test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126566 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 08:05:57 +00:00
Benjamin Kramer
7466678003 Add some DAGCombines for (adde 0, 0, glue), which are useful to optimize legalized code for large integer arithmetic.
1. Inform users of ADDEs with two 0 operands that it never sets carry
2. Fold other ADDs or ADDCs into the ADDE if possible

It would be neat if we could do the same thing for SETCC+ADD eventually, but we can't do that in target independent code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26 22:48:07 +00:00
Nadav Rotem
8c20ec54d9 Enable support for vector sext and trunc:
Limit the folding of any_ext and sext  into the load operation to scalars.
Limit the active-bits trunc optimization to scalars.
Document vector trunc and vector sext in LangRef.

Similar to commit 126080 (for enabling zext).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:01:34 +00:00
Devang Patel
3fe3424a21 Move arch specific tests in arch specific directories.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126401 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 19:06:27 +00:00
Cameron Zwarich
8ca814c4e0 Merge information about the number of zero, one, and sign bits of live-out
registers at phis. This enables us to eliminate a lot of pointless zexts during
the DAGCombine phase. This fixes <rdar://problem/8760114>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 10:00:25 +00:00
Evan Cheng
7558e2e415 Fix bug in X86 folding / unfolding table. Int_CMPSDrm and Int_CMPSSrm memory
operands starts at index 2, not 1.
rdar://9045024
PR9305


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2011-02-24 02:36:52 +00:00
Devang Patel
3a4ae32ed7 Use DW_FORM_data2 for DW_AT_language and let users use DW_LANG_lo_user=0x8000 to DW_LANG_hi_user=0xffff range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 22:37:04 +00:00
Devang Patel
1d6b2c74c0 Check only relevant strings in output to increase stability of the tests.
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2011-02-23 22:35:57 +00:00
NAKAMURA Takumi
6023efb45d Revert r126195, "test/CodeGen/X86/vec_cast.ll: Mark as XFAIL: migw,win32 for workaround of PR8311."
It seems it affected configuration --target=i686-pc-mingw32, I don't know and will investigate why.

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2011-02-22 08:22:54 +00:00
NAKAMURA Takumi
0de102b9d8 Relax expressions and add explicit triplets -linux and -win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126216 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 07:21:59 +00:00
NAKAMURA Takumi
65e9404646 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:21:51 +00:00
NAKAMURA Takumi
3f38d20f95 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:21:42 +00:00
NAKAMURA Takumi
aef8871177 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:21:33 +00:00
NAKAMURA Takumi
88234f14a8 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:21:25 +00:00
NAKAMURA Takumi
902f128141 Relax expressions and add explicit triplets -linux and -win32.
On @foobar(double %d, double* %x),
AMD64: (%xmm0, %rdi)
Win64: (%xmm0, %rdx) (not %rcx!)

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2011-02-22 07:21:17 +00:00
NAKAMURA Takumi
166b79fb24 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:21:08 +00:00
NAKAMURA Takumi
661cae4b58 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:21:01 +00:00
NAKAMURA Takumi
db2649995d Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:52 +00:00
NAKAMURA Takumi
20cee65fd1 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:44 +00:00
NAKAMURA Takumi
5731b5c8ce Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:35 +00:00
NAKAMURA Takumi
22bc92baa4 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:26 +00:00
NAKAMURA Takumi
ed2ac7c211 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:18 +00:00
NAKAMURA Takumi
62627126fe Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:10 +00:00
NAKAMURA Takumi
64779f4b87 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:20:02 +00:00
NAKAMURA Takumi
9839eb06bd Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:19:54 +00:00
NAKAMURA Takumi
e51a69c8fd Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:19:46 +00:00
NAKAMURA Takumi
c3bf772620 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:19:37 +00:00
NAKAMURA Takumi
39109a3ce9 Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:19:28 +00:00
NAKAMURA Takumi
007b2b3c7e Relax expressions and add explicit triplets -linux and -win32.
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2011-02-22 07:19:20 +00:00
NAKAMURA Takumi
52ae4cac4e Relax expressions and add explicit triplets -linux and -win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126196 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 07:19:12 +00:00
NAKAMURA Takumi
ba2218ac24 test/CodeGen/X86/vec_cast.ll: Mark as XFAIL: migw,win32 for workaround of PR8311.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126195 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 07:19:03 +00:00
NAKAMURA Takumi
135c03094f test/CodeGen/X86/red-zone.ll: Add explicit -mtriple=x86_64-linux.
Redzone is not applicable on Win64.

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2011-02-22 07:18:55 +00:00
Andrew Trick
fcfcdbc86a VirtRegRewriter assertion fix.
Apparently it's ok for multiple operands to "kill" the same register.
Fixes PR9237.


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2011-02-22 06:52:56 +00:00
Cameron Zwarich
4ecc82e592 Roll out r126169 and r126170 in an attempt to fix the selfhost bot.
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2011-02-22 03:24:52 +00:00
Cameron Zwarich
92efda7e91 Merge information about the number of zero, one, and sign bits of live-out registers
at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine
phase. This fixes <rdar://problem/8760114>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 00:46:27 +00:00
Eric Christopher
f8597eb0d9 Revert r125960, it's breaking darwin10 bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126163 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:52:19 +00:00
Devang Patel
68e6beeccc Revert r124611 - "Keep track of incoming argument's location while emitting LiveIns."
In other words, do not keep track of argument's location.  The debugger (gdb) is not prepared to see line table entries for arguments. For the debugger, "second" line table entry marks beginning of function body.
This requires some coordination with debugger to get this working. 
 - The debugger needs to be aware of prolog_end attribute attached with line table entries.
 - The compiler needs to accurately mark prolog_end in line table entries (at -O0 and at -O1+)



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2011-02-21 23:21:26 +00:00
NAKAMURA Takumi
d64cfe1506 Target/X86/X86FastISel: [PR6275] Fix Win32's dllimport function with fastisel.
"dllimport" function must not be GlobalVariable, but Function. It is enough to check with GlobalValue.
test/CodeGen/X86/dll-linkage.ll is updated to check llc -O0.

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2011-02-21 04:50:06 +00:00
Cameron Zwarich
8d7285d0e5 The signed version of our "magic number" computation for the integer approximation
of a constant had a minor typo introduced when copying it from the book, which
caused it to favor negative approximations over positive approximations in many
cases. Positive approximations require fewer operations beyond the multiplication.

In the case of division by 3, we still generate code that is a single instruction
larger than GCC's code.

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2011-02-21 00:22:02 +00:00
Nick Lewycky
eff5e69c82 Make RecursivelyDeleteDeadPHINode delete a phi node that has no users and add a
test for that. With this change, test/CodeGen/X86/codegen-dce.ll no longer finds
any instructions to DCE, so delete the test.

Also renamed J and JP to I and IP in RecursivelyDeleteDeadPHINode.


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2011-02-20 18:05:56 +00:00
Nadav Rotem
ed9b934f65 Fix 9267; Add vector zext support.
The DAGCombiner folds the zext into complex load instructions. This patch
prevents this optimization on vectors since none of the supported targets
knows how to perform load+vector_zext in one instruction.



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2011-02-20 12:37:50 +00:00
Devang Patel
fe19e3f74c DIE numbers do not add any value in this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126008 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19 01:28:37 +00:00
Devang Patel
a778f5c798 Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.
This time with a fix that avoids using invalidated DenseMap iterator.


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2011-02-18 22:43:42 +00:00
Bill Wendling
5028249fab Reapply r114997 now that the buildbots have been updated.
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2011-02-18 21:12:58 +00:00