| ; This test verifies that no optimizations are performed on the @f function | |
| ; when the -opt-bisect-limit=0 option is used. In particular, the X86 | |
| ; instruction selector will optimize the cmp instruction to a sub instruction | |
| ; if it is not run in -O0 mode. | |
| ; RUN: llc -O3 -opt-bisect-limit=0 -o - %s | FileCheck %s | |
| target triple = "x86_64-unknown-linux-gnu" | |
| define void @f() { | |
| entry: | |
| %cmp = icmp slt i32 undef, 8 | |
| br i1 %cmp, label %middle, label %end | |
| middle: | |
| br label %end | |
| end: | |
| ret void | |
| } | |
| ; CHECK: cmpl $8, %eax |