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llvm-mirror/test/CodeGen/X86/llc-override-mcpu-mattr.ll
Matt Arsenault 2346ede1ad llc: Change behavior of -mcpu with existing attribute
Don't overwrite existing target-cpu attributes.

I've often found the replacement behavior annoying, and this is
inconsistent with how the fast math command line flags interact with
the function attributes.

Does not yet change target-features, since I think that should behave
as a concatenation.
2020-01-07 10:10:25 -05:00

20 lines
709 B
LLVM

; RUN: llc < %s -mtriple=x86_64-- -mcpu=broadwell | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx2 | FileCheck %s
; Check that llc can set function attributes target-cpu and target-features
; using command line options -mcpu and -mattr.
; CHECK: vpsadbw (%r{{si|dx}}), %ymm{{[0-9]+}}, %ymm{{[0-9]+}}
define <4 x i64> @foo1(<4 x i64>* %s1, <4 x i64>* %s2) {
entry:
%ps1 = load <4 x i64>, <4 x i64>* %s1
%ps2 = load <4 x i64>, <4 x i64>* %s2
%0 = bitcast <4 x i64> %ps1 to <32 x i8>
%1 = bitcast <4 x i64> %ps2 to <32 x i8>
%2 = tail call <4 x i64> @llvm.x86.avx2.psad.bw(<32 x i8> %0, <32 x i8> %1)
ret <4 x i64> %2
}
declare <4 x i64> @llvm.x86.avx2.psad.bw(<32 x i8>, <32 x i8>)