1 ; This test verifies that no optimizations are performed on the @f function 2 ; when the -opt-bisect-limit=0 option is used. In particular, the X86 3 ; instruction selector will optimize the cmp instruction to a sub instruction 4 ; if it is not run in -O0 mode. 5 6 ; RUN: llc -O3 -opt-bisect-limit=0 -o - %s | FileCheck %s 7 8 target triple = "x86_64-unknown-linux-gnu" 9 10 define void @f() { 11 entry: 12 %cmp = icmp slt i32 undef, 8 13 br i1 %cmp, label %middle, label %end 14 15 middle: 16 br label %end 17 18 end: 19 ret void 20 } 21 22 ; CHECK: cmpl $8, %eax 23
