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Imported Upstream version 5.18.0.207

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Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
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Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
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31
external/llvm/test/CodeGen/X86/vec_trunc_sext.ll vendored
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@ -1,31 +0,0 @@
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=-sse4.1 | FileCheck %s --check-prefix=NO_SSE_41
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE_41
; PR20472 ( http://llvm.org/bugs/show_bug.cgi?id=20472 )
; When sexting a trunc'd vector value, we can't eliminate the zext.
; If we don't have SSE4.1, use punpck.
; If we have SSE4.1, use pmovzx because it combines the load op.
; There may be a better way to do this using pshufb + pmovsx,
; but that is beyond our current codegen capabilities.
define <4 x i32> @trunc_sext(<4 x i16>* %in) {
; NO_SSE_41-LABEL: trunc_sext:
; NO_SSE_41: # %bb.0:
; NO_SSE_41-NEXT: movq {{.*#+}} xmm0 = mem[0],zero
; NO_SSE_41-NEXT: punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3]
; NO_SSE_41-NEXT: pslld $24, %xmm0
; NO_SSE_41-NEXT: psrad $24, %xmm0
; NO_SSE_41-NEXT: retq
;
; SSE_41-LABEL: trunc_sext:
; SSE_41: # %bb.0:
; SSE_41-NEXT: pmovzxwd {{.*#+}} xmm0 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero
; SSE_41-NEXT: pslld $24, %xmm0
; SSE_41-NEXT: psrad $24, %xmm0
; SSE_41-NEXT: retq
%load = load <4 x i16>, <4 x i16>* %in
%trunc = trunc <4 x i16> %load to <4 x i8>
%sext = sext <4 x i8> %trunc to <4 x i32>
ret <4 x i32> %sext
}