test/Transforms/InstCombine/pow-exp.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s

define float @powf_expf(float %x, float %y) {
; CHECK-LABEL: @powf_expf(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP:%.*]] = call fast float @llvm.exp.f32(float [[MUL]])
; CHECK-NEXT:    ret float [[EXP]]
;
  %call = call fast float @expf(float %x) nounwind readnone
  %pow = call fast float @llvm.pow.f32(float %call, float %y)
  ret float %pow
}

define float @powf_expf_libcall(float %x, float %y) {
; CHECK-LABEL: @powf_expf_libcall(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXPF:%.*]] = call fast float @expf(float [[MUL]])
; CHECK-NEXT:    ret float [[EXPF]]
;
  %call = call fast float @expf(float %x)
  %pow = call fast float @powf(float %call, float %y)
  ret float %pow
}

define double @pow_exp(double %x, double %y) {
; CHECK-LABEL: @pow_exp(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast double [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP:%.*]] = call fast double @llvm.exp.f64(double [[MUL]])
; CHECK-NEXT:    ret double [[EXP]]
;
  %call = call fast double @exp(double %x) nounwind readnone
  %pow = call fast double @llvm.pow.f64(double %call, double %y)
  ret double %pow
}

define double @pow_exp_not_intrinsic(double %x, double %y) {
; CHECK-LABEL: @pow_exp_not_intrinsic(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast double [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP:%.*]] = call fast double @llvm.exp.f64(double [[MUL]])
; CHECK-NEXT:    ret double [[EXP]]
;
  %call = call fast double @exp(double %x) nounwind readnone
  %pow = call fast double @pow(double %call, double %y) nounwind readnone
  ret double %pow
}

define fp128 @powl_expl(fp128 %x, fp128 %y) {
; CHECK-LABEL: @powl_expl(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast fp128 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP:%.*]] = call fast fp128 @llvm.exp.f128(fp128 [[MUL]])
; CHECK-NEXT:    ret fp128 [[EXP]]
;
  %call = call fast fp128 @expl(fp128 %x) nounwind readnone
  %pow = call fast fp128 @llvm.pow.f128(fp128 %call, fp128 %y)
  ret fp128 %pow
}

define fp128 @powl_expl_not_fast(fp128 %x, fp128 %y) {
; CHECK-LABEL: @powl_expl_not_fast(
; CHECK-NEXT:    [[CALL:%.*]] = call fp128 @expl(fp128 [[X:%.*]])
; CHECK-NEXT:    [[POW:%.*]] = call fast fp128 @llvm.pow.f128(fp128 [[CALL]], fp128 [[Y:%.*]])
; CHECK-NEXT:    ret fp128 [[POW]]
;
  %call = call fp128 @expl(fp128 %x)
  %pow = call fast fp128 @llvm.pow.f128(fp128 %call, fp128 %y)
  ret fp128 %pow
}

define float @powf_exp2f(float %x, float %y) {
; CHECK-LABEL: @powf_exp2f(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP2:%.*]] = call fast float @llvm.exp2.f32(float [[MUL]])
; CHECK-NEXT:    ret float [[EXP2]]
;
  %call = call fast float @exp2f(float %x) nounwind readnone
  %pow = call fast float @llvm.pow.f32(float %call, float %y)
  ret float %pow
}

define float @powf_exp2f_not_intrinsic(float %x, float %y) {
; CHECK-LABEL: @powf_exp2f_not_intrinsic(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP2:%.*]] = call fast float @llvm.exp2.f32(float [[MUL]])
; CHECK-NEXT:    ret float [[EXP2]]
;
  %call = call fast float @exp2f(float %x) nounwind readnone
  %pow = call fast float @powf(float %call, float %y) nounwind readnone
  ret float %pow
}

define double @pow_exp2(double %x, double %y) {
; CHECK-LABEL: @pow_exp2(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast double [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP2:%.*]] = call fast double @llvm.exp2.f64(double [[MUL]])
; CHECK-NEXT:    ret double [[EXP2]]
;
  %call = call fast double @exp2(double %x) nounwind readnone
  %pow = call fast double @llvm.pow.f64(double %call, double %y)
  ret double %pow
}

define double @pow_exp2_libcall(double %x, double %y) {
; CHECK-LABEL: @pow_exp2_libcall(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast double [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP2:%.*]] = call fast double @exp2(double [[MUL]])
; CHECK-NEXT:    ret double [[EXP2]]
;
  %call = call fast double @exp2(double %x)
  %pow = call fast double @pow(double %call, double %y)
  ret double %pow
}

define fp128 @powl_exp2l(fp128 %x, fp128 %y) {
; CHECK-LABEL: @powl_exp2l(
; CHECK-NEXT:    [[MUL:%.*]] = fmul fast fp128 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT:    [[EXP2:%.*]] = call fast fp128 @llvm.exp2.f128(fp128 [[MUL]])
; CHECK-NEXT:    ret fp128 [[EXP2]]
;
  %call = call fast fp128 @exp2l(fp128 %x) nounwind readnone
  %pow = call fast fp128 @llvm.pow.f128(fp128 %call, fp128 %y)
  ret fp128 %pow
}

define fp128 @powl_exp2l_not_fast(fp128 %x, fp128 %y) {
; CHECK-LABEL: @powl_exp2l_not_fast(
; CHECK-NEXT:    [[CALL:%.*]] = call fp128 @exp2l(fp128 [[X:%.*]])
; CHECK-NEXT:    [[POW:%.*]] = call fast fp128 @llvm.pow.f128(fp128 [[CALL]], fp128 [[Y:%.*]])
; CHECK-NEXT:    ret fp128 [[POW]]
;
  %call = call fp128 @exp2l(fp128 %x)
  %pow = call fast fp128 @llvm.pow.f128(fp128 %call, fp128 %y)
  ret fp128 %pow
}

; TODO: exp10() is not widely enabled by many targets yet.

define float @powf_exp10f(float %x, float %y) {
; CHECK-LABEL: @powf_exp10f(
; CHECK-NEXT:    [[CALL:%.*]] = call fast float @exp10f(float [[X:%.*]]) #1
; CHECK-NEXT:    [[POW:%.*]] = call fast float @llvm.pow.f32(float [[CALL]], float [[Y:%.*]])
; CHECK-NEXT:    ret float [[POW]]
;
  %call = call fast float @exp10f(float %x) nounwind readnone
  %pow = call fast float @llvm.pow.f32(float %call, float %y)
  ret float %pow
}

define double @pow_exp10(double %x, double %y) {
; CHECK-LABEL: @pow_exp10(
; CHECK-NEXT:    [[CALL:%.*]] = call fast double @exp10(double [[X:%.*]]) #1
; CHECK-NEXT:    [[POW:%.*]] = call fast double @llvm.pow.f64(double [[CALL]], double [[Y:%.*]])
; CHECK-NEXT:    ret double [[POW]]
;
  %call = call fast double @exp10(double %x) nounwind readnone
  %pow = call fast double @llvm.pow.f64(double %call, double %y)
  ret double %pow
}

define fp128 @pow_exp10l(fp128 %x, fp128 %y) {
; CHECK-LABEL: @pow_exp10l(
; CHECK-NEXT:    [[CALL:%.*]] = call fast fp128 @exp10l(fp128 [[X:%.*]]) #1
; CHECK-NEXT:    [[POW:%.*]] = call fast fp128 @llvm.pow.f128(fp128 [[CALL]], fp128 [[Y:%.*]])
; CHECK-NEXT:    ret fp128 [[POW]]
;
  %call = call fast fp128 @exp10l(fp128 %x) nounwind readnone
  %pow = call fast fp128 @llvm.pow.f128(fp128 %call, fp128 %y)
  ret fp128 %pow
}

define float @reuse_fast(float %x, float %y, float * %p) {
; CHECK-LABEL: @reuse_fast(
; CHECK-NEXT:    [[EXP:%.*]] = call fast float @expf(float [[X:%.*]])
; CHECK-NEXT:    [[POW:%.*]] = call fast float @powf(float [[EXP]], float [[Y:%.*]])
; CHECK-NEXT:    store float [[EXP]], float* [[P:%.*]], align 4
; CHECK-NEXT:    ret float [[POW]]
;
  %exp = call fast float @expf(float %x)
  %pow = call fast float @powf(float %exp, float %y)
  store float %exp, float *%p, align 4
  ret float %pow
}

define fp128 @reuse_libcall(fp128 %x, fp128 %y, fp128 * %p) {
; CHECK-LABEL: @reuse_libcall(
; CHECK-NEXT:    [[EXP:%.*]] = call fp128 @expl(fp128 [[X:%.*]])
; CHECK-NEXT:    [[POW:%.*]] = call fp128 @powl(fp128 [[EXP]], fp128 [[Y:%.*]])
; CHECK-NEXT:    store fp128 [[EXP]], fp128* [[P:%.*]], align 16
; CHECK-NEXT:    ret fp128 [[POW]]
;
  %exp = call fp128 @expl(fp128 %x)
  %pow = call fp128 @powl(fp128 %exp, fp128 %y)
  store fp128 %exp, fp128 *%p, align 16
  ret fp128 %pow
}

define double @function_pointer(double ()* %fptr, double %p1) {
; CHECK-LABEL: @function_pointer(
; CHECK-NEXT:    [[CALL1:%.*]] = call fast double [[FPTR:%.*]]()
; CHECK-NEXT:    [[POW:%.*]] = call fast double @llvm.pow.f64(double [[CALL1]], double [[P1:%.*]])
; CHECK-NEXT:    ret double [[POW]]
;
  %call1 = call fast double %fptr()
  %pow = call fast double @llvm.pow.f64(double %call1, double %p1)
  ret double %pow
}

declare float @expf(float)
declare double @exp(double)
declare fp128 @expl(fp128)
declare float @exp2f(float)
declare double @exp2(double)
declare fp128 @exp2l(fp128)
declare float @exp10f(float)
declare double @exp10(double)
declare fp128 @exp10l(fp128)
declare float @powf(float, float)
declare double @pow(double, double)
declare fp128 @powl(fp128, fp128)
declare float @llvm.pow.f32(float, float)
declare double @llvm.pow.f64(double, double)
declare fp128 @llvm.pow.f128(fp128, fp128)