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Imported Upstream version 5.18.0.167
Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define double @pow_exp(double %x, double %y) {
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%call = call fast double @exp(double %x) nounwind readnone
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%pow = call fast double @llvm.pow.f64(double %call, double %y)
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ret double %pow
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}
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; CHECK-LABEL: define double @pow_exp(
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; CHECK-NEXT: %mul = fmul fast double %x, %y
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; CHECK-NEXT: %exp = call fast double @exp(double %mul)
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; CHECK-NEXT: ret double %exp
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define double @pow_exp2(double %x, double %y) {
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%call = call fast double @exp2(double %x) nounwind readnone
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%pow = call fast double @llvm.pow.f64(double %call, double %y)
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ret double %pow
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}
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; CHECK-LABEL: define double @pow_exp2(
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; CHECK-NEXT: %mul = fmul fast double %x, %y
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; CHECK-NEXT: %exp2 = call fast double @exp2(double %mul)
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; CHECK-NEXT: ret double %exp2
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define double @pow_exp_not_fast(double %x, double %y) {
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%call = call double @exp(double %x)
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%pow = call fast double @llvm.pow.f64(double %call, double %y)
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ret double %pow
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}
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; CHECK-LABEL: define double @pow_exp_not_fast(
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; CHECK-NEXT: %call = call double @exp(double %x)
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; CHECK-NEXT: %pow = call fast double @llvm.pow.f64(double %call, double %y)
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; CHECK-NEXT: ret double %pow
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define double @function_pointer(double ()* %fptr, double %p1) {
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%call1 = call fast double %fptr()
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%pow = call fast double @llvm.pow.f64(double %call1, double %p1)
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ret double %pow
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}
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; CHECK-LABEL: @function_pointer
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; CHECK-NEXT: %call1 = call fast double %fptr()
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; CHECK-NEXT: %pow = call fast double @llvm.pow.f64(double %call1, double %p1)
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declare double @exp(double)
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declare double @exp2(double)
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declare double @llvm.pow.f64(double, double)
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