derek.holloway
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61 lines
2.2 KiB
LLVM
61 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -disable-simplify-libcalls -passes=instcombine -S | FileCheck %s
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declare double @llvm.pow.f64(double, double)
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declare double @pow(double, double)
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define double @sqrt_libcall(double %x) {
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; CHECK-LABEL: @sqrt_libcall(
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; CHECK-NEXT: [[RETVAL:%.*]] = call double @pow(double [[X:%.*]], double 5.000000e-01)
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; CHECK-NEXT: ret double [[RETVAL]]
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;
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%retval = call double @pow(double %x, double 0.5)
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ret double %retval
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}
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define double @sqrt_intrinsic(double %x) {
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; CHECK-LABEL: @sqrt_intrinsic(
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; CHECK-NEXT: [[SQRT:%.*]] = call double @llvm.sqrt.f64(double [[X:%.*]])
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; CHECK-NEXT: [[ABS:%.*]] = call double @llvm.fabs.f64(double [[SQRT]])
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; CHECK-NEXT: [[ISINF:%.*]] = fcmp oeq double [[X]], -inf
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; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[ISINF]], double +inf, double [[ABS]]
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; CHECK-NEXT: ret double [[RETVAL]]
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;
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%retval = call double @llvm.pow.f64(double %x, double 0.5)
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ret double %retval
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}
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; Shrinking is disabled too.
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define float @shrink_libcall(float %f, float %g) {
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; CHECK-LABEL: @shrink_libcall(
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; CHECK-NEXT: [[DF:%.*]] = fpext float [[F:%.*]] to double
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; CHECK-NEXT: [[DG:%.*]] = fpext float [[G:%.*]] to double
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; CHECK-NEXT: [[CALL:%.*]] = call fast double @pow(double [[DF]], double [[DG]])
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; CHECK-NEXT: [[FR:%.*]] = fptrunc double [[CALL]] to float
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; CHECK-NEXT: ret float [[FR]]
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;
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%df = fpext float %f to double
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%dg = fpext float %g to double
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%call = call fast double @pow(double %df, double %dg)
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%fr = fptrunc double %call to float
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ret float %fr
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}
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; Shrinking is disabled for the intrinsic too.
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define float @shrink_intrinsic(float %f, float %g) {
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; CHECK-LABEL: @shrink_intrinsic(
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; CHECK-NEXT: [[DF:%.*]] = fpext float [[F:%.*]] to double
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; CHECK-NEXT: [[DG:%.*]] = fpext float [[G:%.*]] to double
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; CHECK-NEXT: [[CALL:%.*]] = call fast double @llvm.pow.f64(double [[DF]], double [[DG]])
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; CHECK-NEXT: [[FR:%.*]] = fptrunc double [[CALL]] to float
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; CHECK-NEXT: ret float [[FR]]
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;
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%df = fpext float %f to double
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%dg = fpext float %g to double
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%call = call fast double @llvm.pow.f64(double %df, double %dg)
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%fr = fptrunc double %call to float
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ret float %fr
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}
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