diff options
| author | Craig Topper <craig.topper@intel.com> | 2018-10-25 17:28:57 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-10-25 17:28:57 +0000 |
| commit | 5d787ac4becc12659c0dbf50c2cbb54e17e738d2 (patch) | |
| tree | c52264dde8193a87f309c0bea068afda07302591 | |
| parent | 511c7d0cbe679b176a50ebe41624d588f38f9b57 (diff) | |
| download | bcm5719-llvm-5d787ac4becc12659c0dbf50c2cbb54e17e738d2.tar.gz bcm5719-llvm-5d787ac4becc12659c0dbf50c2cbb54e17e738d2.zip | |
[X86] Remove some uarch tuning flags from KNL that look to have been inherited from SNB/IVB incorrectly
KNL is based on a modified Silvermont core so I don't think these features apply. I think the LEA flag is probably also wrong, but I'm less sure as I barely understand the 3 LEA flags we have currently.
Differential Revision: https://reviews.llvm.org/D53671
llvm-svn: 345285
| -rw-r--r-- | llvm/lib/Target/X86/X86.td | 4 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/avx512-select.ll | 4 |
2 files changed, 2 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td index 9a12a7237e4..100e192f181 100644 --- a/llvm/lib/Target/X86/X86.td +++ b/llvm/lib/Target/X86/X86.td @@ -823,11 +823,7 @@ def KNLFeatures : ProcessorFeatures<[], [ FeatureXSAVEOPT, FeatureLAHFSAHF, FeatureSlow3OpsLEA, - FeatureFastScalarFSQRT, - FeatureFastSHLDRotate, FeatureSlowIncDec, - FeatureMergeToThreeWayBranch, - FeatureMacroFusion, FeatureRDRAND, FeatureF16C, FeatureFSGSBase, diff --git a/llvm/test/CodeGen/X86/avx512-select.ll b/llvm/test/CodeGen/X86/avx512-select.ll index 2ad2251bc1a..008a3b44ce0 100644 --- a/llvm/test/CodeGen/X86/avx512-select.ll +++ b/llvm/test/CodeGen/X86/avx512-select.ll @@ -16,8 +16,8 @@ define <16 x i32> @select00(i32 %a, <16 x i32> %b) nounwind { ; ; X64-LABEL: select00: ; X64: # %bb.0: -; X64-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; X64-NEXT: cmpl $255, %edi +; X64-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; X64-NEXT: je .LBB0_2 ; X64-NEXT: # %bb.1: ; X64-NEXT: vmovdqa64 %zmm0, %zmm1 @@ -44,8 +44,8 @@ define <8 x i64> @select01(i32 %a, <8 x i64> %b) nounwind { ; ; X64-LABEL: select01: ; X64: # %bb.0: -; X64-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; X64-NEXT: cmpl $255, %edi +; X64-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; X64-NEXT: je .LBB1_2 ; X64-NEXT: # %bb.1: ; X64-NEXT: vmovdqa64 %zmm0, %zmm1 |
