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8521 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen b50cf8b30f Mark X86::RET and RETI instructions as variadic. 
There is special magic happening when returning floating point values on
the x87 stack. The RET instructions get extra f80 operands.

llvm-svn: 162592
 2012-08-24 20:52:44 +00:00
Jakob Stoklund Olesen 8ff666fcb6 Remove more mayLoad workarounds. 
llvm-svn: 162556
 2012-08-24 14:43:22 +00:00
Craig Topper 663d160adb Custom lower FMA intrinsics to target specific nodes and remove the patterns. 
llvm-svn: 162534
 2012-08-24 04:03:22 +00:00
Jakob Stoklund Olesen d3511235d1 Remove some spurious mayLoad = 0 flags. 
They were inserted to silence TableGen's warning about
redundant properties. That warning is now gone.

llvm-svn: 162517
 2012-08-24 00:31:20 +00:00
Jakob Stoklund Olesen df1faa0503 X86MemBarrier has unmodeled side effects. 
llvm-svn: 162514
 2012-08-24 00:31:10 +00:00
Jakob Stoklund Olesen 7030427623 Preserve operand flags in convertToThreeAddress() by copying operands. 
No test case, this is a generalization of r160260.

llvm-svn: 162485
 2012-08-23 22:36:31 +00:00
Craig Topper 4a4634d6de Favor FMA3 over FMA4 if both are enabled. 
llvm-svn: 162454
 2012-08-23 18:14:30 +00:00
Craig Topper f911597494 Use a switch statement instead of a bunch of if-else checks and pull out the common function call. 
llvm-svn: 162428
 2012-08-23 04:57:36 +00:00
Chad Rosier cf172e5e28 [ms-inline asm] Avoid a false positive assertion 
Assertion failed: (Start.isValid() == End.isValid() && "Start and end should 
either both be valid or both be invalid!")

when parsing inline asm.  SMLoc assumes that the first char * in the source is
invalid.  However, when parsing an inline asm the mnemonic is at this location.
I don't want to change SMLoc, so use a trivial workaround.

llvm-svn: 162381
 2012-08-22 19:14:29 +00:00
Craig Topper a538d831e6 Add a getName function to MachineFunction. Use it in places that previously did getFunction()->getName(). Remove includes of Function.h that are no longer needed. 
llvm-svn: 162347
 2012-08-22 06:07:19 +00:00
Craig Topper 056dfcccb7 Don't cache the MBB in the class. Its only used by one function. Change a for loop over operands to use unsigned instead of int. 
llvm-svn: 162344
 2012-08-22 05:59:59 +00:00
Craig Topper 455bcafa3b Mark a function as static since it doesn't use anything in the class. 
llvm-svn: 162342
 2012-08-22 05:36:44 +00:00
Richard Smith 13473857a7 Fix unaligned memory accesses when performing relocations in X86 JIT. There's 
no cost to using memcpy here: the fixed code is optimized by LLVM to perfect
machine code.

llvm-svn: 162311
 2012-08-21 20:48:36 +00:00
Chad Rosier 3d4bc62a5c [ms-inline asm] Do not report a Parser error when matching inline assembly. 
llvm-svn: 162306
 2012-08-21 19:36:59 +00:00
Chad Rosier 79e766c38e [ms-inline asm] Expose the ErrorInfo from the MatchInstructionImpl. In general, 
this is the index of the operand that failed to match.

Note: This may cause a buildbot failure due to an API mismatch in clang.  Should
recover with my next commit to clang.

llvm-svn: 162295
 2012-08-21 18:14:59 +00:00
Craig Topper bab0c76674 Fix up indentation and remove a couple else's after returns. 
llvm-svn: 162270
 2012-08-21 08:29:51 +00:00
Craig Topper bfcfdeb563 Use uint16_t for tables of opcodes. 
llvm-svn: 162267
 2012-08-21 08:23:21 +00:00
Craig Topper a0cabf19f8 Fix up indentation. No functional change. 
llvm-svn: 162264
 2012-08-21 08:17:07 +00:00
Craig Topper 4bc3e5a1bf Add a couple llvm_unreachables. Add a message to several others. 
llvm-svn: 162263
 2012-08-21 08:16:16 +00:00
Craig Topper 653e759046 Replace a break with llvm_unreachable in the default case of a nested switch. Condense code a bit. No functional change. 
llvm-svn: 162261
 2012-08-21 07:32:16 +00:00
Craig Topper 384fae2f0d Cleanup the scalar FMA3 definitions. Add patterns to fold loads with scalar forms. 
llvm-svn: 162260
 2012-08-21 07:11:11 +00:00
Craig Topper 4f3879dfa7 Merge FMA3 instructions with and without patterns into single classes using null_frag. 
llvm-svn: 162257
 2012-08-21 05:56:45 +00:00
Michael Liao 10ff96ce8c fix a case where all operands of BUILD_VECTOR are undefined 
llvm-svn: 162214
 2012-08-20 17:59:18 +00:00
Craig Topper b58eec4eaf Remove FMA3 intrinsic instructions in favor of patterns. 
llvm-svn: 162194
 2012-08-20 06:21:25 +00:00
Craig Topper 37eca54912 Use correct intrinsic for 256-bit VFMSUBADDPS. 
llvm-svn: 162193
 2012-08-20 06:03:04 +00:00
Craig Topper 5122e9f194 Remove trailing white space and tab characters. No functional change. 
llvm-svn: 162192
 2012-08-19 23:37:46 +00:00
Nadav Rotem 178250ad87 When unsafe math is used, we can use commutative FMAX and FMIN. In some cases 
this allows for better code generation.

Added a new DAGCombine transformation to convert FMAX and FMIN to FMANC and
FMINC, which are commutative.

For example:

  movaps  %xmm0, %xmm1
  movsd LC(%rip), %xmm0
  minsd %xmm1, %xmm0

becomes:

  minsd LC(%rip), %xmm0

llvm-svn: 162187
 2012-08-19 13:06:16 +00:00
Nadav Rotem a136939fa9 Reapply r162160 with a fix: Optimize Arith->Trunc->SETCC sequence to allow better compare/branch code. 
llvm-svn: 162172
 2012-08-18 17:53:03 +00:00
Craig Topper 0128f9bad7 Refactor code a bit to reduce number of calls in the final compiled code. No functional change intended. 
llvm-svn: 162166
 2012-08-18 06:39:34 +00:00
Nadav Rotem c324af609e Revert r162160 because it made a few buildbots fail. 
llvm-svn: 162164
 2012-08-18 05:02:36 +00:00
Nadav Rotem 2cb14a5c4b The X86 backend has a number of optimizations for SETCC nodes which use 
arithmetic instructions. However, when small data types are used, a truncate
node appears between the SETCC node and the arithmetic operation. This patch
adds support for this pattern.

Before:
  xorl  %esi, %edi
  testb %dil, %dil
  setne %al
  ret

After:
  xorb  %dil, %sil
  setne %al
  ret

rdar://12081007

llvm-svn: 162160
 2012-08-18 02:43:28 +00:00
Craig Topper 31625574db Use nested switch to select arguments to reduce calls to EmitPCMP. 
llvm-svn: 162089
 2012-08-17 07:15:56 +00:00
Craig Topper 602e1abe0d Make ReplaceATOMIC_BINARY_64 a static function. Use a nested switch to reduce to only a single call to it thus allowing it to be inlined by the compiler. 
llvm-svn: 162088
 2012-08-17 06:55:11 +00:00
Anitha Boyapati af3e98347f Patch to enable FMA on bdver2 target. Make XOP feature enable FMA4 as well. 
llvm-svn: 162012
 2012-08-16 04:04:02 +00:00
Anitha Boyapati 426feb61b9 (no commit message) 
llvm-svn: 162010
 2012-08-16 03:50:04 +00:00
Michael Liao 06f6fe875a minor fix of X86ISD::VSEXT_MOVL dump 
llvm-svn: 161902
 2012-08-14 22:53:17 +00:00
Michael Liao 34107b9177 fix PR11334 
- FP_EXTEND only support extending from vectors with matching elements.
  This results in the scalarization of extending to v2f64 from v2f32,
  which will be legalized to v4f32 not matching with v2f64.
- add X86-specific VFPEXT supproting extending from v4f32 to v2f64.
- add BUILD_VECTOR lowering helper to recover back the original
  extending from v4f32 to v2f64.
- test case is enhanced to include different vector width.

llvm-svn: 161894
 2012-08-14 21:24:47 +00:00
Craig Topper 925a281b00 Factor duplicate calls to getUNDEF in several functions. 
llvm-svn: 161860
 2012-08-14 08:18:43 +00:00
Craig Topper d0d4b11f66 Re-factor intrinsic lowering to combine common parts of similar intrinsics. Reduces compiled code size a little bit. 
llvm-svn: 161859
 2012-08-14 07:43:25 +00:00
Manman Ren 959acb106b X86: move Int_CVTSD2SSrr, Int_CVTSI2SSrr, Int_CVTSI2SDrr, Int_CVTSS2SDrr from 
OpTbl1 to OpTbl2 since they have 3 operands and the last operand can be changed
to a memory operand.

PR13576

llvm-svn: 161769
 2012-08-13 18:29:41 +00:00
Manman Ren e90e94f117 X86: when auto-detecting the subtarget features, make sure use IsIntel to detect 
Nehalem, Westmere and Sandy Bridge. AMD also has processor family 6.

llvm-svn: 161763
 2012-08-13 17:26:46 +00:00
Craig Topper 4e5eb72735 Tidy up VSETCC lowering code a bit more by adding an llvm_unreachable and putting an a couple if conditions in a better order. 
llvm-svn: 161746
 2012-08-13 03:42:38 +00:00
Craig Topper 5145a0d967 Refactor code a bit to share commonalities. No functional change intended. 
llvm-svn: 161745
 2012-08-13 02:34:03 +00:00
Craig Topper ff6e4d1928 Fix an unused variable warning from r161742. 
llvm-svn: 161743
 2012-08-13 01:26:45 +00:00
Craig Topper a7aaa62d54 Remove the LowerMMXCONCAT_VECTORS function. It could never execute because there are no legal 64-bit vector types that could be used as inputs to a 128-bit concat_vectors. Remove a target specific SDNode and its patterns that become unused as a result. 
llvm-svn: 161742
 2012-08-13 01:23:55 +00:00
Craig Topper 3d2b271362 Remove call to setOperationAction for SETCC of v4f32. SETCC returns an integer type not an FP type. 
llvm-svn: 161738
 2012-08-12 05:31:32 +00:00
Craig Topper 498228d089 Remove unnecessary call to setOperationAction for SETCC of v2i64 under SSE42. It was already called for the same under SSE2. 
llvm-svn: 161737
 2012-08-12 05:15:16 +00:00
Craig Topper 10a8bf3b8c Make replace many calls to getSizeInBits() with is128BitVector/is256BitVector 
llvm-svn: 161734
 2012-08-12 02:23:29 +00:00
Craig Topper 03d2787275 Use MVT.isXBitVector instead of EVT.isXBitVector when setting up operation actions. Compiles to smaller code. 
llvm-svn: 161733
 2012-08-12 00:34:56 +00:00
Michael Liao e7e828fd64 fix PR13577, an issue introduced by r161687 
- FCMOV only supports a subset of X86 conditions. Skip boolean
  simplification if X86 condition is not valid for FCMOV.
- add a minimal test case for PR13577.

llvm-svn: 161732
 2012-08-11 23:47:06 +00:00