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2d32816a45
Now that we have initial support for VSX, we can begin adding intrinsics for programmer access to VSX instructions. This patch adds basic support for VSX intrinsics in general, and tests it by implementing intrinsics for minimum and maximum for the vector double data type. The LLVM portion of this is quite straightforward. There is a companion patch for Clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220988 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
3.7 KiB
LLVM
99 lines
3.7 KiB
LLVM
; RUN: llc -mcpu=pwr7 -mattr=+vsx -O0 -fast-isel=0 -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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@vf = global <4 x float> <float -1.500000e+00, float 2.500000e+00, float -3.500000e+00, float 4.500000e+00>, align 16
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@vd = global <2 x double> <double 3.500000e+00, double -7.500000e+00>, align 16
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@d = global double 2.340000e+01, align 8
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@vf1 = common global <4 x float> zeroinitializer, align 16
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@vd1 = common global <2 x double> zeroinitializer, align 16
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@vf2 = common global <4 x float> zeroinitializer, align 16
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@vf3 = common global <4 x float> zeroinitializer, align 16
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@vd2 = common global <2 x double> zeroinitializer, align 16
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@vf4 = common global <4 x float> zeroinitializer, align 16
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@d1 = common global double 0.000000e+00, align 8
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@d2 = common global double 0.000000e+00, align 8
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; Function Attrs: nounwind
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define void @test1() #0 {
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; CHECK-LABEL: @test1
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entry:
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%0 = load volatile <4 x float>* @vf, align 16
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%1 = load volatile <4 x float>* @vf, align 16
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%2 = tail call <4 x float> @llvm.ppc.vsx.xvmaxsp(<4 x float> %0, <4 x float> %1)
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; CHECK: xvmaxsp
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store <4 x float> %2, <4 x float>* @vf1, align 16
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%3 = load <2 x double>* @vd, align 16
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%4 = tail call <2 x double> @llvm.ppc.vsx.xvmaxdp(<2 x double> %3, <2 x double> %3)
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; CHECK: xvmaxdp
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store <2 x double> %4, <2 x double>* @vd1, align 16
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%5 = load volatile <4 x float>* @vf, align 16
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%6 = load volatile <4 x float>* @vf, align 16
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%7 = tail call <4 x float> @llvm.ppc.vsx.xvmaxsp(<4 x float> %5, <4 x float> %6)
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; CHECK: xvmaxsp
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store <4 x float> %7, <4 x float>* @vf2, align 16
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%8 = load volatile <4 x float>* @vf, align 16
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%9 = load volatile <4 x float>* @vf, align 16
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%10 = tail call <4 x float> @llvm.ppc.vsx.xvminsp(<4 x float> %8, <4 x float> %9)
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; CHECK: xvminsp
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store <4 x float> %10, <4 x float>* @vf3, align 16
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%11 = load <2 x double>* @vd, align 16
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%12 = tail call <2 x double> @llvm.ppc.vsx.xvmindp(<2 x double> %11, <2 x double> %11)
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; CHECK: xvmindp
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store <2 x double> %12, <2 x double>* @vd2, align 16
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%13 = load volatile <4 x float>* @vf, align 16
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%14 = load volatile <4 x float>* @vf, align 16
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%15 = tail call <4 x float> @llvm.ppc.vsx.xvminsp(<4 x float> %13, <4 x float> %14)
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; CHECK: xvminsp
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store <4 x float> %15, <4 x float>* @vf4, align 16
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%16 = load double* @d, align 8
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%17 = tail call double @llvm.ppc.vsx.xsmaxdp(double %16, double %16)
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; CHECK: xsmaxdp
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store double %17, double* @d1, align 8
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%18 = tail call double @llvm.ppc.vsx.xsmindp(double %16, double %16)
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; CHECK: xsmindp
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store double %18, double* @d2, align 8
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ret void
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}
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; Function Attrs: nounwind readnone
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declare double @llvm.ppc.vsx.xsmaxdp(double, double)
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; Function Attrs: nounwind readnone
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declare double @llvm.ppc.vsx.xsmindp(double, double)
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; Function Attrs: nounwind readnone
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declare <4 x float> @llvm.ppc.vsx.xvminsp(<4 x float>, <4 x float>)
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; Function Attrs: nounwind readnone
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declare <2 x double> @llvm.ppc.vsx.xvmindp(<2 x double>, <2 x double>)
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; Function Attrs: nounwind readnone
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declare <4 x float> @llvm.ppc.vsx.xvmaxsp(<4 x float>, <4 x float>)
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; Function Attrs: nounwind readnone
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declare <2 x double> @llvm.ppc.vsx.xvmaxdp(<2 x double>, <2 x double>)
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; Generated from C source:
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; % clang -O1 -maltivec -mvsx -S -emit-llvm vsx-minmax.c
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;
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;volatile vector float vf = { -1.5, 2.5, -3.5, 4.5 };
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;vector double vd = { 3.5, -7.5 };
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;double d = 23.4;
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;
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;vector float vf1, vf2, vf3, vf4;
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;vector double vd1, vd2;
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;double d1, d2;
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;
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;void test1() {
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; vf1 = vec_max(vf, vf);
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; vd1 = vec_max(vd, vd);
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; vf2 = vec_vmaxfp(vf, vf);
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; vf3 = vec_min(vf, vf);
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; vd2 = vec_min(vd, vd);
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; vf4 = vec_vminfp(vf, vf);
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; d1 = __builtin_vsx_xsmaxdp(d, d);
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; d2 = __builtin_vsx_xsmindp(d, d);
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;}
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