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19d8559019
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20959 Commits

Author SHA1 Message Date
Victor Umansky
19d8559019 Peephole optimization of ptest-conditioned branch in X86 arch. Performs instruction combining of sequences generated by ptestz/ptestc intrinsics to ptest+jcc pair for SSE and AVX. 
Testing: passed 'make check' including LIT tests for all sequences being handled (both SSE and AVX)

Reviewers: Evan Cheng, David Blaikie, Bruno Lopes, Elena Demikhovsky, Chad Rosier, Anton Korobeynikov



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147601 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-05 08:46:19 +00:00
Bill Wendling
397ae210ce Replace the uint64_t -> double convertion algorithm with one that's more efficient. 
This small bit of ASM code is sufficient to do what the old algorithm did:

     movq       %rax,  %xmm0
     punpckldq  (c0),  %xmm0  // c0: (uint4){ 0x43300000U, 0x45300000U, 0U, 0U }
     subpd      (c1),  %xmm0  // c1: (double2){ 0x1.0p52, 0x1.0p52 * 0x1.0p32 }
   #ifdef __SSE3__
     haddpd   %xmm0, %xmm0          
   #else
     pshufd   $0x4e, %xmm0, %xmm1 
     addpd    %xmm1, %xmm0
   #endif

It's arguably faster. One caveat, the 'haddpd' instruction isn't very fast on
all processors.
<rdar://problem/7719814>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147593 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-05 02:13:20 +00:00
Jakob Stoklund Olesen
7255a4e133 Reapply r146997, "Heed spill slot alignment on ARM." 
Now that canRealignStack() understands frozen reserved registers, it is
safe to use it for aligned spill instructions.

It will only return true if the registers reserved at the beginning of
register allocation allow for dynamic stack realignment.

<rdar://problem/10625436>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147579 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-05 00:26:57 +00:00
Jakob Stoklund Olesen
54f3b7a910 Avoid reserving an ARM base pointer during register allocation. 
Once register allocation has started the reserved registers are frozen.

Fix the ARM canRealignStack() hook to respect the frozen register state.
Now the hook returns false if register allocation was started with frame
pointer elimination enabled.

It also returns false if register allocation started without a reserved
base pointer, and stack realignment would require a base pointer.  This
bug was breaking oggenc on armv6.

No test case, an upcoming patch will use this functionality to realign
the stack for spill slots when possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147578 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-05 00:26:52 +00:00
Benjamin Kramer
a5f8942e05 Silence warnings of a mysterious compiler that still defaults to C89. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147553 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 22:06:45 +00:00
Akira Hatanaka
b0e7af7797 Enable -soft-float for MIPS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147541 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 19:29:11 +00:00
Akira Hatanaka
2010325a11 Rename immLUiOpnd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147519 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 03:09:26 +00:00
Akira Hatanaka
f12e702a8c - Define base classes for Jump-and-link instructions and make 32-bit and 64-bit 
versions derive from them.
- JALR64 is not needed since N64 does not emit jal. 
- Add template parameter to BranchLink that sets the rt field. 
- Fix the set of temporary registers for O32 and N64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147518 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 03:02:47 +00:00
Akira Hatanaka
cb9dd72fdc Have getRegForInlineAsmConstraint return the correct register class when target 
is Mips64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147516 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 02:45:01 +00:00
Evan Cheng
afad0fe59a Fix more places which should be checking for iOS, not darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147513 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 01:55:04 +00:00
Evan Cheng
56f582d664 For x86, canonicalize max 
(x > y) ? x : y
=>
(x >= y) ? x : y

So for something like
(x - y) > 0 : (x - y) ? 0
It will be
(x - y) >= 0 : (x - y) ? 0

This makes is possible to test sign-bit and eliminate a comparison against
zero. e.g.
subl   %esi, %edi
testl  %edi, %edi
movl   $0, %eax
cmovgl %edi, %eax
=>
xorl   %eax, %eax
subl   %esi, $edi
cmovsl %eax, %edi

rdar://10633221


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147512 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 01:41:39 +00:00
Chad Rosier
b90d2a9046 Fix 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147495 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 23:19:12 +00:00
Jakob Stoklund Olesen
6d5b7cc235 Revert r146997, "Heed spill slot alignment on ARM." 
This patch caused a miscompilation of oggenc because a frame pointer was
suddenly needed halfway through register allocation.

<rdar://problem/10625436>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147487 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 22:34:35 +00:00
Nadav Rotem
c2d064f028 Revert 147426 because it caused pr11696. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147485 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 22:19:42 +00:00
Chad Rosier
3d1161e9ae Enhance DAGCombine for transforming 128->256 casts into a vmovaps, rather 
then a vxorps + vinsertf128 pair if the original vector came from a load.
rdar://10594409

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147481 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 21:05:52 +00:00
Matt Beaumont-Gay
19055cc271 Fix malformed assert. 
If anybody has strong feelings about 'default: assert(0 && "blah")' vs
'default: llvm_unreachable("blah")', feel free to regularize the instances of
each in this file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147459 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 19:03:59 +00:00
Devang Patel
b1666b971e Intel style asm variant does not need '%' prefix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147453 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 18:22:10 +00:00
Craig Topper
c612d79817 Miscellaneous shuffle lowering cleanup. No functional changes. Primarily converting the indexing loops to unsigned to be consistent across functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147430 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 09:17:37 +00:00
Craig Topper
a51bb3aa75 Make CanXFormVExtractWithShuffleIntoLoad reject loads with multiple uses. Also make it return false if there's not even a load at all. This makes the code better match the code in DAGCombiner that it tries to match. These two changes prevent some cases where vector_shuffles were making it to instruction selection and causing the older shuffle selection code to be triggered. Also needed to fix a bad pattern that this change exposed. This is the first step towards getting rid of the old shuffle selection support. No test cases yet because there's no way to tell whether a shuffle was handled in the legalize stage or at instruction selection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147428 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 08:46:48 +00:00
Nadav Rotem
a46f35d3d6 Optimize the sequence blend(sign_extend(x)) to blend(shl(x)) since SSE blend instructions only look at the highest bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147426 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 08:05:46 +00:00
Craig Topper
a86bcfb565 Allow CRC32 instructions to be selected when AVX is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147411 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 19:51:58 +00:00
Craig Topper
de9e4c728e Fix sfence, lfence, mfence, and clflush to be able to be selected when AVX is enabled. Fix monitor and mwait to require SSE3 or AVX, previously they worked even if SSE3 was disabled. Make prefetch instructions not set the execution domain since they don't use XMM registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147409 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 19:40:22 +00:00
Benjamin Kramer
8943574b44 X86Disassembler: Fix undefined behavior found by GCC 4.6 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147404 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 17:55:36 +00:00
Craig Topper
b3982da7d2 Merge X86 SHUFPS and SHUFPD node types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147394 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 23:50:21 +00:00
Craig Topper
3ee6d22c78 Add patterns for integer forms of SHUFPD/VSHUFPD with a memory load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147393 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 23:24:49 +00:00
Craig Topper
e00805d52f Fix typo in a SHUFPD and VSHUFPD pattern that prevented SHUFPD/VSHUFPD with a load from being selected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147392 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 23:15:11 +00:00
Bruno Cardoso Lopes
ce8524c016 Cleanup Mips code and rename some variables. Patch by Jack Carter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147383 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 21:09:41 +00:00
Bruno Cardoso Lopes
3aa035fa0c Improve Mips JIT. 
Implement encoder methods getJumpTargetOpValue and getBranchTargetOpValue
for jmptarget and brtarget Mips tablegen operand types in the code emitter
for old-style JIT. Rename the pc relative relocation for branches - new
name is Mips::reloc_mips_pc16.

Patch by Sasa Stankovic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147382 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 21:04:30 +00:00
Craig Topper
7ba2725f5d Make FMA4 imply AVX so that YMM registers would be available. Necessitates removing from Bulldozer CPU types since it would enable AVX code generation implicitly. Also make SSE4A imply SSE3. Without some level of SSE implied, XMM registers wouldn't be legal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147369 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 07:16:00 +00:00
Craig Topper
06f554d06a Add disassembler support for VPERMIL2PD and VPERMIL2PS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147368 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 06:23:39 +00:00
Craig Topper
e6a3a2990e Add FMA4 instructions to disassembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147367 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 05:20:36 +00:00
Craig Topper
5d1a38cbfa Separate the concept of having memory access in operand 4 from the concept of having the W bit set for XOP instructons. Removes ORing W-bits in the encoder and will similarly simplify the disassembler implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147366 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 04:48:54 +00:00
Craig Topper
4d5c4423b9 Combine FMA4 SS/SD patterns with the instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147365 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 03:33:59 +00:00
Craig Topper
ca28590d8b Combine FMA4 PS/PD patterns with the instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147364 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 03:17:15 +00:00
Craig Topper
2e9ed29449 Change FMA4 memory forms to use memopv* instead of alignedloadv*. No need to force alignment on these instructions. Add a couple testcases for memory forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147361 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 02:18:36 +00:00
Craig Topper
57d4b3315f Fix load size for FMA4 SS/SD instructions. They need to use f32 and f64 size, but with the special handling to be compatible with the intrinsic expecting a vector. Similar handling is already used elsewhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147360 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 01:49:53 +00:00
Hal Finkel
2e95afa04c Cleanup stack/frame register define/kill states. This fixes two bugs: 
1. The ST*UX instructions that store and update the stack pointer did not set define/kill on R1. This became a problem when I activated post-RA scheduling (and had incorrectly adjusted the Frames-large test).

2. eliminateFrameIndex did not kill its scavenged temporary register, and this could cause the scavenger to exhaust all available registers (and its emergency spill slot) when there were a lot of CR values to spill. The 2010-02-12-saveCR test has been adjusted to check for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147359 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 00:34:00 +00:00
Craig Topper
1604ccfc01 Fix execution domains for PS/PD FMA3 instructions. Add SS/SD forms o FMA3 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147353 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 20:43:40 +00:00
Craig Topper
19f18be449 Expose FMA3 instructions to the disassembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147351 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 20:03:14 +00:00
Craig Topper
c38fff4277 Make FMA3 imply AVX needs to be enabled. Particularly because 256-bit types aren't valid unless AVX is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147349 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 19:46:19 +00:00
Craig Topper
5ebee4494b Change XOP detection to use the correct CPUID bit instead of using the FMA4 bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147348 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 19:25:56 +00:00
Craig Topper
8493e39014 Add FeaturePOPCNT to all CPU types that lost it was removed from SSE42/SSE4A in r147339. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147347 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 18:47:31 +00:00
Craig Topper
b75f5f7d5d Mark non-VEX forms of PCLMUL instructions as requiring SSE2 to be enabled along with CLMUL. That's required for the XMM registers to be valid for integer data. Doesn't change any behavior since the CLMUL instructions don't have patterns yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147345 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 18:08:36 +00:00
Craig Topper
78be212d1b Mark non-VEX forms of AES instructions as requiring SSE2 to be enabled along with AES. Since that's required for the XMM registers to be valid for integer data. Doesn't change any behavior though since you can't use an intrinsic with an illegal type anyway. Just makes it consistent with the VEX forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147344 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 18:00:08 +00:00
Craig Topper
d65c7da5b0 Remove the separate explicit AES instruction patterns. They are equivalent to the patterns specified by the instructions. Also remove unnecessary bitconverts from the AES patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147342 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 17:41:56 +00:00
Craig Topper
d4d3513d37 Make SSE42 and SSE4A not imply POPCNT. POPCNT should be able to be disabled on its own without disabling SSE4.2 or SSE4A. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147339 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 15:51:45 +00:00
Craig Topper
19ec2a9db1 Make LowerBUILD_VECTOR keep node vector types consistent when creating MOVL for v16i16 and v32i8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147337 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 03:34:54 +00:00
Craig Topper
d62c16e535 Remove some elses after returns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147336 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 03:20:51 +00:00
Craig Topper
3224e6b60a Remove trailing spaces. Fix an assert to use && instead of || before string. Add same assert on similar code path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147335 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 03:09:33 +00:00
Eli Friedman
da813f4209 Fix type-checking for load transformation which is not legal on floating-point types. PR11674. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147323 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 21:24:44 +00:00