mirror of
https://github.com/RPCS3/llvm-mirror.git
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c63386d01a
double test(double a, double b, double c, double d) { return a<b ? c : d; }
before:
_test:
ucomisd %xmm0, %xmm1
ja LBB0_2
movaps %xmm3, %xmm2
LBB0_2:
movaps %xmm2, %xmm0
after:
_test:
cmpltsd %xmm1, %xmm0
andpd %xmm0, %xmm2
andnpd %xmm3, %xmm0
orpd %xmm2, %xmm0
Small speedup on Benchmarks/SmallPT
llvm-svn: 187706
186 lines
4.7 KiB
LLVM
186 lines
4.7 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mtriple=x86_64-apple-darwin -mcpu=nehalem | FileCheck %s
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define double @test1(double %a, double %b, double %eps) {
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%cmp = fcmp olt double %a, %eps
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%cond = select i1 %cmp, double %b, double 0.000000e+00
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ret double %cond
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; CHECK-LABEL: @test1
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; CHECK: cmpltsd %xmm2, %xmm0
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; CHECK-NEXT: andpd %xmm1, %xmm0
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}
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define double @test2(double %a, double %b, double %eps) {
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%cmp = fcmp ole double %a, %eps
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%cond = select i1 %cmp, double %b, double 0.000000e+00
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ret double %cond
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; CHECK-LABEL: @test2
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; CHECK: cmplesd %xmm2, %xmm0
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; CHECK-NEXT: andpd %xmm1, %xmm0
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}
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define double @test3(double %a, double %b, double %eps) {
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%cmp = fcmp ogt double %a, %eps
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%cond = select i1 %cmp, double %b, double 0.000000e+00
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ret double %cond
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; CHECK-LABEL: @test3
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; CHECK: cmpltsd %xmm0, %xmm2
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; CHECK-NEXT: andpd %xmm1, %xmm2
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}
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define double @test4(double %a, double %b, double %eps) {
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%cmp = fcmp oge double %a, %eps
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%cond = select i1 %cmp, double %b, double 0.000000e+00
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ret double %cond
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; CHECK-LABEL: @test4
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; CHECK: cmplesd %xmm0, %xmm2
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; CHECK-NEXT: andpd %xmm1, %xmm2
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}
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define double @test5(double %a, double %b, double %eps) {
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%cmp = fcmp olt double %a, %eps
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%cond = select i1 %cmp, double 0.000000e+00, double %b
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ret double %cond
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; CHECK-LABEL: @test5
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; CHECK: cmpltsd %xmm2, %xmm0
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; CHECK-NEXT: andnpd %xmm1, %xmm0
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}
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define double @test6(double %a, double %b, double %eps) {
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%cmp = fcmp ole double %a, %eps
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%cond = select i1 %cmp, double 0.000000e+00, double %b
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ret double %cond
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; CHECK-LABEL: @test6
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; CHECK: cmplesd %xmm2, %xmm0
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; CHECK-NEXT: andnpd %xmm1, %xmm0
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}
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define double @test7(double %a, double %b, double %eps) {
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%cmp = fcmp ogt double %a, %eps
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%cond = select i1 %cmp, double 0.000000e+00, double %b
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ret double %cond
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; CHECK-LABEL: @test7
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; CHECK: cmpltsd %xmm0, %xmm2
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; CHECK-NEXT: andnpd %xmm1, %xmm2
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}
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define double @test8(double %a, double %b, double %eps) {
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%cmp = fcmp oge double %a, %eps
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%cond = select i1 %cmp, double 0.000000e+00, double %b
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ret double %cond
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; CHECK-LABEL: @test8
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; CHECK: cmplesd %xmm0, %xmm2
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; CHECK-NEXT: andnpd %xmm1, %xmm2
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}
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define float @test9(float %a, float %b, float %eps) {
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%cmp = fcmp olt float %a, %eps
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%cond = select i1 %cmp, float %b, float 0.000000e+00
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ret float %cond
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; CHECK-LABEL: @test9
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; CHECK: cmpltss %xmm2, %xmm0
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; CHECK-NEXT: andps %xmm1, %xmm0
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}
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define float @test10(float %a, float %b, float %eps) {
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%cmp = fcmp ole float %a, %eps
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%cond = select i1 %cmp, float %b, float 0.000000e+00
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ret float %cond
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; CHECK-LABEL: @test10
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; CHECK: cmpless %xmm2, %xmm0
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; CHECK-NEXT: andps %xmm1, %xmm0
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}
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define float @test11(float %a, float %b, float %eps) {
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%cmp = fcmp ogt float %a, %eps
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%cond = select i1 %cmp, float %b, float 0.000000e+00
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ret float %cond
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; CHECK-LABEL: @test11
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; CHECK: cmpltss %xmm0, %xmm2
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; CHECK-NEXT: andps %xmm1, %xmm2
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}
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define float @test12(float %a, float %b, float %eps) {
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%cmp = fcmp oge float %a, %eps
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%cond = select i1 %cmp, float %b, float 0.000000e+00
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ret float %cond
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; CHECK-LABEL: @test12
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; CHECK: cmpless %xmm0, %xmm2
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; CHECK-NEXT: andps %xmm1, %xmm2
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}
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define float @test13(float %a, float %b, float %eps) {
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%cmp = fcmp olt float %a, %eps
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%cond = select i1 %cmp, float 0.000000e+00, float %b
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ret float %cond
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; CHECK-LABEL: @test13
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; CHECK: cmpltss %xmm2, %xmm0
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; CHECK-NEXT: andnps %xmm1, %xmm0
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}
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define float @test14(float %a, float %b, float %eps) {
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%cmp = fcmp ole float %a, %eps
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%cond = select i1 %cmp, float 0.000000e+00, float %b
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ret float %cond
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; CHECK-LABEL: @test14
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; CHECK: cmpless %xmm2, %xmm0
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; CHECK-NEXT: andnps %xmm1, %xmm0
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}
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define float @test15(float %a, float %b, float %eps) {
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%cmp = fcmp ogt float %a, %eps
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%cond = select i1 %cmp, float 0.000000e+00, float %b
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ret float %cond
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; CHECK-LABEL: @test15
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; CHECK: cmpltss %xmm0, %xmm2
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; CHECK-NEXT: andnps %xmm1, %xmm2
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}
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define float @test16(float %a, float %b, float %eps) {
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%cmp = fcmp oge float %a, %eps
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%cond = select i1 %cmp, float 0.000000e+00, float %b
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ret float %cond
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; CHECK-LABEL: @test16
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; CHECK: cmpless %xmm0, %xmm2
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; CHECK-NEXT: andnps %xmm1, %xmm2
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}
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define float @test17(float %a, float %b, float %c, float %eps) {
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%cmp = fcmp oge float %a, %eps
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%cond = select i1 %cmp, float %c, float %b
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ret float %cond
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; CHECK-LABEL: @test17
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; CHECK: cmpless %xmm0, %xmm3
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; CHECK-NEXT: andps %xmm3, %xmm2
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; CHECK-NEXT: andnps %xmm1, %xmm3
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; CHECK-NEXT: orps %xmm2, %xmm3
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}
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define double @test18(double %a, double %b, double %c, double %eps) {
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%cmp = fcmp oge double %a, %eps
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%cond = select i1 %cmp, double %c, double %b
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ret double %cond
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; CHECK-LABEL: @test18
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; CHECK: cmplesd %xmm0, %xmm3
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; CHECK-NEXT: andpd %xmm3, %xmm2
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; CHECK-NEXT: andnpd %xmm1, %xmm3
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; CHECK-NEXT: orpd %xmm2, %xmm3
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}
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