Davide Italiano | b8b7133 | 2015-11-29 20:58:04 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -instcombine -S | FileCheck %s |
| 2 | |
Davide Italiano | 9c26161 | 2015-11-30 19:38:35 +0000 | [diff] [blame] | 3 | define double @mylog(double %x, double %y) { |
Davide Italiano | b8b7133 | 2015-11-29 20:58:04 +0000 | [diff] [blame] | 4 | entry: |
| 5 | %pow = call double @llvm.pow.f64(double %x, double %y) |
Davide Italiano | 9c26161 | 2015-11-30 19:38:35 +0000 | [diff] [blame] | 6 | %call = call double @log(double %pow) |
Davide Italiano | b8b7133 | 2015-11-29 20:58:04 +0000 | [diff] [blame] | 7 | ret double %call |
| 8 | } |
| 9 | |
| 10 | ; CHECK-LABEL: define double @mylog( |
| 11 | ; CHECK: %pow = call double @llvm.pow.f64(double %x, double %y) |
| 12 | ; CHECK: %call = call double @log(double %pow) |
| 13 | ; CHECK: ret double %call |
| 14 | ; CHECK: } |
| 15 | |
Davide Italiano | 9c26161 | 2015-11-30 19:38:35 +0000 | [diff] [blame] | 16 | define double @test3(double %x) { |
| 17 | %call2 = call double @exp2(double %x) |
| 18 | %call3 = call double @log(double %call2) |
Davide Italiano | 1aeed6a | 2015-11-30 19:36:35 +0000 | [diff] [blame] | 19 | ret double %call3 |
| 20 | } |
| 21 | |
| 22 | ; CHECK-LABEL: @test3 |
| 23 | ; CHECK: %call2 = call double @exp2(double %x) |
| 24 | ; CHECK: %call3 = call double @log(double %call2) |
| 25 | ; CHECK: ret double %call3 |
| 26 | ; CHECK: } |
| 27 | |
Davide Italiano | 9c26161 | 2015-11-30 19:38:35 +0000 | [diff] [blame] | 28 | declare double @log(double) |
Davide Italiano | 1aeed6a | 2015-11-30 19:36:35 +0000 | [diff] [blame] | 29 | declare double @exp2(double) |
Davide Italiano | b8b7133 | 2015-11-29 20:58:04 +0000 | [diff] [blame] | 30 | declare double @llvm.pow.f64(double, double) |