1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workerdefine double @pow_exp(double %x, double %y) { 4*9880d681SAndroid Build Coastguard Worker %call = call fast double @exp(double %x) nounwind readnone 5*9880d681SAndroid Build Coastguard Worker %pow = call fast double @llvm.pow.f64(double %call, double %y) 6*9880d681SAndroid Build Coastguard Worker ret double %pow 7*9880d681SAndroid Build Coastguard Worker} 8*9880d681SAndroid Build Coastguard Worker 9*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define double @pow_exp( 10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %mul = fmul fast double %x, %y 11*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %exp = call fast double @exp(double %mul) 12*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret double %exp 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Workerdefine double @pow_exp2(double %x, double %y) { 15*9880d681SAndroid Build Coastguard Worker %call = call fast double @exp2(double %x) nounwind readnone 16*9880d681SAndroid Build Coastguard Worker %pow = call fast double @llvm.pow.f64(double %call, double %y) 17*9880d681SAndroid Build Coastguard Worker ret double %pow 18*9880d681SAndroid Build Coastguard Worker} 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define double @pow_exp2( 21*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %mul = fmul fast double %x, %y 22*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %exp2 = call fast double @exp2(double %mul) 23*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret double %exp2 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Workerdefine double @pow_exp_not_fast(double %x, double %y) { 26*9880d681SAndroid Build Coastguard Worker %call = call double @exp(double %x) 27*9880d681SAndroid Build Coastguard Worker %pow = call fast double @llvm.pow.f64(double %call, double %y) 28*9880d681SAndroid Build Coastguard Worker ret double %pow 29*9880d681SAndroid Build Coastguard Worker} 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define double @pow_exp_not_fast( 32*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %call = call double @exp(double %x) 33*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %pow = call fast double @llvm.pow.f64(double %call, double %y) 34*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret double %pow 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workerdefine double @function_pointer(double ()* %fptr, double %p1) { 37*9880d681SAndroid Build Coastguard Worker %call1 = call fast double %fptr() 38*9880d681SAndroid Build Coastguard Worker %pow = call fast double @llvm.pow.f64(double %call1, double %p1) 39*9880d681SAndroid Build Coastguard Worker ret double %pow 40*9880d681SAndroid Build Coastguard Worker} 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @function_pointer 43*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %call1 = call fast double %fptr() 44*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: %pow = call fast double @llvm.pow.f64(double %call1, double %p1) 45*9880d681SAndroid Build Coastguard Worker 46*9880d681SAndroid Build Coastguard Workerdeclare double @exp(double) 47*9880d681SAndroid Build Coastguard Workerdeclare double @exp2(double) 48*9880d681SAndroid Build Coastguard Workerdeclare double @llvm.pow.f64(double, double) 49*9880d681SAndroid Build Coastguard Worker 50