| Davide Italiano | c8a7913 | 2015-11-03 20:32:23 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -instcombine -S | FileCheck %s |
| 2 | |
| 3 | define double @mypow(double %x, double %y) #0 { |
| 4 | entry: |
| 5 | %call = call double @exp(double %x) |
| 6 | %pow = call double @llvm.pow.f64(double %call, double %y) |
| 7 | ret double %pow |
| 8 | } |
| 9 | |
| 10 | ; CHECK-LABEL: define double @mypow( |
| 11 | ; CHECK: %mul = fmul fast double %x, %y |
| 12 | ; CHECK: %exp = call double @exp(double %mul) #0 |
| 13 | ; CHECK: ret double %exp |
| 14 | ; CHECK: } |
| 15 | |
| 16 | declare double @exp(double) #1 |
| 17 | declare double @llvm.pow.f64(double, double) |
| 18 | attributes #0 = { "unsafe-fp-math"="true" } |
| 19 | attributes #1 = { "unsafe-fp-math"="true" } |