| |
| ; RUN: opt < %s -passes=gvn -S | FileCheck %s |
| |
| ; CHECK-LABEL: func_fast |
| ; CHECK: fadd fast double |
| ; CHECK-NEXT: store |
| ; CHECK-NEXT: ret |
| define double @func_fast(double %a, double %b) { |
| entry: |
| %a.addr = alloca double, align 8 |
| %add = fadd fast double %b, 3.000000e+00 |
| store double %add, ptr %a.addr, align 8 |
| %load_add = load double, ptr %a.addr, align 8 |
| ret double %load_add |
| } |
| |
| ; CHECK-LABEL: func_no_fast |
| ; CHECK: fadd double |
| ; CHECK-NEXT: store |
| ; CHECK-NEXT: ret |
| define double @func_no_fast(double %a, double %b) { |
| entry: |
| %a.addr = alloca double, align 8 |
| %add = fadd fast double %b, 3.000000e+00 |
| store double %add, ptr %a.addr, align 8 |
| %duplicated_add = fadd double %b, 3.000000e+00 |
| ret double %duplicated_add |
| } |
| |