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Craig Topper b2552e1e08 [x86] fix mappings of cvttp2si/cvttp2ui x86 intrinsics to x86-specific nodes and isel patterns (PR37551) 
Summary:
The tests in:
https://bugs.llvm.org/show_bug.cgi?id=37751
...show miscompiles because we wrongly mapped and folded x86-specific intrinsics into generic DAG nodes.

This patch corrects the mappings in X86IntrinsicsInfo.h and adds isel matching corresponding to the new patterns. The complete tests for the failure cases should be in avx-cvttp2si.ll and sse-cvttp2si.ll and avx512-cvttp2i.ll

Reviewers: RKSimon, gbedwell, spatel

Reviewed By: spatel

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D47993

llvm-svn: 334685
 		2018-06-14 03:16:58 +00:00
..
AArch64 [DAGCombiner] remove hasOneUse() check from fadd constants transform 2018-06-13 15:22:48 +00:00
AMDGPU AMDGPU/GlobalISel: Implement select() for 32-bit G_FADD and G_FMUL 2018-06-13 22:30:47 +00:00
ARC
…
ARM DAG: Fix extract_subvector combine for a single element 2018-06-11 21:27:41 +00:00
AVR [AVR] Set trackLivenessAfterRegAlloc 2018-06-11 14:46:48 +00:00
BPF [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Generic [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Hexagon [DAGCombiner] Recognize more patterns for ABS 2018-06-12 21:51:49 +00:00
Inputs
…
Lanai Remove SETCCE use from Lanai's backend 2018-06-03 12:56:24 +00:00
MIR [MIRParser] Add parser support for 'true' and 'false' i1s. 2018-06-05 00:17:13 +00:00
MSP430 Emit a left-shift instead of a power-of-two multiply for jump-tables 2018-05-16 08:58:26 +00:00
Mips [mips][microMIPS] Extending size reduction pass with LWP and SWP 2018-06-13 12:51:37 +00:00
NVPTX [DAG] fold FP binops with undef operands to NaN 2018-05-21 23:54:19 +00:00
Nios2
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PowerPC propagate fast math flags via IR on fma and sub expressions 2018-06-07 22:49:09 +00:00
RISCV [RISCV] Add codegen support for atomic load/stores with RV32A 2018-06-13 12:04:51 +00:00
SPARC [Sparc] Add support for 13-bit PIC 2018-06-11 05:50:08 +00:00
SystemZ [BranchFolding] Fix live-in's when hoisting code 2018-06-07 07:20:33 +00:00
Thumb [ARM] Allow CMPZ transforms even if the input has multiple uses. 2018-06-08 21:16:56 +00:00
Thumb2 [Thumb2] fix typo in test from r332548 2018-05-17 03:24:25 +00:00
WebAssembly [WebAssembly] Update to the new names for the memory intrinsics. 2018-05-31 22:35:25 +00:00
WinCFGuard
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WinEH [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
X86 [x86] fix mappings of cvttp2si/cvttp2ui x86 intrinsics to x86-specific nodes and isel patterns (PR37551) 2018-06-14 03:16:58 +00:00
XCore [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00