| ; RUN: opt -debug-only=branch-prob -passes="require<branch-prob>,jump-threading" -S %s 2>&1 | FileCheck %s |
| ; RUN: opt -debug-only=branch-prob -passes=jump-threading -S %s 2>&1 | FileCheck %s --check-prefix=CHECK-NOBPI |
| ; REQUIRES: asserts |
| |
| ; Make sure that we clear edge probabilities for bb1 as we fold |
| ; the conditional branch in it. |
| |
| ; CHECK: eraseBlock bb1 |
| ; CHECK-NOBPI-NOT: eraseBlock bb1 |
| |
| define void @foo(i32 %i, i32 %len) !prof !0 { |
| ; CHECK-LABEL: @foo |
| %i.inc = add nuw i32 %i, 1 |
| %c0 = icmp ult i32 %i.inc, %len |
| br i1 %c0, label %bb1, label %bb2 |
| |
| bb1: |
| ; CHECK: bb1: |
| %c1 = icmp ult i32 %i, %len |
| br i1 %c1, label %bb2, label %bb3 |
| |
| bb2: |
| ret void |
| |
| bb3: |
| ; CHECK-NOT: bb3: |
| ret void |
| } |
| |
| !0 = !{!"function_entry_count", i64 0} |
