Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/sse_partial_update.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
---|---|
date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 60c9769439b8 |
line wrap: on
line source
; RUN: llc < %s -mtriple=x86_64-apple-macosx -mattr=+sse2 -mcpu=nehalem | FileCheck %s ; rdar: 12558838 ; PR14221 ; There is a mismatch between the intrinsic and the actual instruction. ; The actual instruction has a partial update of dest, while the intrinsic ; passes through the upper FP values. Here, we make sure the source and ; destination of rsqrtss are the same. define void @t1(<4 x float> %a) nounwind uwtable ssp { entry: ; CHECK-LABEL: t1: ; CHECK: rsqrtss %xmm0, %xmm0 %0 = tail call <4 x float> @llvm.x86.sse.rsqrt.ss(<4 x float> %a) nounwind %a.addr.0.extract = extractelement <4 x float> %0, i32 0 %conv = fpext float %a.addr.0.extract to double %a.addr.4.extract = extractelement <4 x float> %0, i32 1 %conv3 = fpext float %a.addr.4.extract to double tail call void @callee(double %conv, double %conv3) nounwind ret void } declare void @callee(double, double) declare <4 x float> @llvm.x86.sse.rsqrt.ss(<4 x float>) nounwind readnone define void @t2(<4 x float> %a) nounwind uwtable ssp { entry: ; CHECK-LABEL: t2: ; CHECK: rcpss %xmm0, %xmm0 %0 = tail call <4 x float> @llvm.x86.sse.rcp.ss(<4 x float> %a) nounwind %a.addr.0.extract = extractelement <4 x float> %0, i32 0 %conv = fpext float %a.addr.0.extract to double %a.addr.4.extract = extractelement <4 x float> %0, i32 1 %conv3 = fpext float %a.addr.4.extract to double tail call void @callee(double %conv, double %conv3) nounwind ret void } declare <4 x float> @llvm.x86.sse.rcp.ss(<4 x float>) nounwind readnone