forked from OSchip/llvm-project
76 lines
2.1 KiB
LLVM
76 lines
2.1 KiB
LLVM
; RUN: opt < %s -instsimplify -S | FileCheck %s
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; These tests choose arbitrarily between float and double,
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; and between uge and olt, to give reasonble coverage
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; without combinatorial explosion.
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declare float @llvm.fabs.f32(float)
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declare float @llvm.sqrt.f32(float)
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declare double @llvm.powi.f64(double,i32)
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declare float @llvm.exp.f32(float)
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declare double @llvm.exp2.f64(double)
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declare float @llvm.fma.f32(float,float,float)
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declare void @expect_equal(i1,i1)
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; CHECK-LABEL: @orderedLessZeroTree(
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define i1 @orderedLessZeroTree(float,float,float,float) {
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%square = fmul float %0, %0
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%abs = call float @llvm.fabs.f32(float %1)
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%sqrt = call float @llvm.sqrt.f32(float %2)
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%fma = call float @llvm.fma.f32(float %3, float %3, float %sqrt)
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%div = fdiv float %square, %abs
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%rem = frem float %sqrt, %fma
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%add = fadd float %div, %rem
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%uge = fcmp uge float %add, 0.000000e+00
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; CHECK: ret i1 true
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ret i1 %uge
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}
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; CHECK-LABEL: @orderedLessZeroExpExt(
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define i1 @orderedLessZeroExpExt(float) {
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%a = call float @llvm.exp.f32(float %0)
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%b = fpext float %a to double
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%uge = fcmp uge double %b, 0.000000e+00
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; CHECK: ret i1 true
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ret i1 %uge
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}
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; CHECK-LABEL: @orderedLessZeroExp2Trunc(
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define i1 @orderedLessZeroExp2Trunc(double) {
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%a = call double @llvm.exp2.f64(double %0)
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%b = fptrunc double %a to float
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%olt = fcmp olt float %b, 0.000000e+00
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; CHECK: ret i1 false
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ret i1 %olt
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}
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; CHECK-LABEL: @orderedLessZeroPowi(
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define i1 @orderedLessZeroPowi(double,double) {
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; Even constant exponent
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%a = call double @llvm.powi.f64(double %0, i32 2)
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%square = fmul double %1, %1
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; Odd constant exponent with provably non-negative base
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%b = call double @llvm.powi.f64(double %square, i32 3)
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%c = fadd double %a, %b
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%olt = fcmp olt double %b, 0.000000e+00
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; CHECK: ret i1 false
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ret i1 %olt
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}
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define i1 @nonans1(double %in1, double %in2) {
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%cmp = fcmp nnan uno double %in1, %in2
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ret i1 %cmp
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; CHECK-LABEL: @nonans1
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; CHECK-NEXT: ret i1 false
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}
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define i1 @nonans2(double %in1, double %in2) {
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%cmp = fcmp nnan ord double %in1, %in2
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ret i1 %cmp
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; CHECK-LABEL: @nonans2
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; CHECK-NEXT: ret i1 true
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}
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