| ; RUN: opt -passes=pgo-instr-gen -S 2>&1 < %s | FileCheck %s |
| ; |
| ; RUN: llvm-profdata merge %S/Inputs/callbr.proftext -o %t.profdata |
| ; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE |
| |
| |
| define i32 @a() { |
| entry: |
| ; CHECK-NOT: ptrtoint ptr asm sideeffect |
| ; CHECK: callbr void asm sideeffect |
| %retval = alloca i32, align 4 |
| callbr void asm sideeffect "", "!i,~{dirflag},~{fpsr},~{flags}"() #1 |
| to label %asm.fallthrough [label %b] |
| |
| asm.fallthrough: |
| br label %b |
| |
| b: |
| %0 = load i32, ptr %retval, align 4 |
| ret i32 %0 |
| } |
| ; USE-LABEL: @a |
| ; USE-SAME: !prof ![[BW_ENTRY:[0-9]+]] |
| ; USE: callbr void asm sideeffect |
| ; USE: to label |
| ; USE-SAME: !prof ![[BW_CALLBR:[0-9]+]] |
| ; USE ![[BW_ENTRY]] = !{!"function_entry_count", i64 100} |
| ; USE ![[BW_CALLBR]] = !{!"branch_weights", i32 80, i32 20} |
| |
