| ; RUN: llc < %s -mtriple=x86_64-apple-darwin -print-machineinstrs=expand-isel-pseudos -o /dev/null 2>&1 | FileCheck %s | |
| ;; Make sure a transformation in SelectionDAGBuilder that converts "or + br" to | |
| ;; two branches correctly updates the branch probability. | |
| @max_regno = common global i32 0, align 4 | |
| define void @test(i32* %old, i32 %final) { | |
| for.cond: | |
| br label %for.cond2 | |
| for.cond2: ; preds = %for.inc, %for.cond | |
| %i.1 = phi i32 [ %inc19, %for.inc ], [ 0, %for.cond ] | |
| %bit.0 = phi i32 [ %shl, %for.inc ], [ 1, %for.cond ] | |
| %tobool = icmp eq i32 %bit.0, 0 | |
| %v3 = load i32, i32* @max_regno, align 4 | |
| %cmp4 = icmp eq i32 %i.1, %v3 | |
| %or.cond = or i1 %tobool, %cmp4 | |
| br i1 %or.cond, label %for.inc20, label %for.inc, !prof !0 | |
| ; CHECK: bb.1.for.cond2: | |
| ; CHECK: successors: %bb.3(0x01f3d4c5), %bb.4(0x7e0c2b3b) | |
| ; CHECK: bb.4.for.cond2: | |
| ; CHECK: successors: %bb.3(0x01fb92cf), %bb.2(0x7e046d31) | |
| for.inc: ; preds = %for.cond2 | |
| %shl = shl i32 %bit.0, 1 | |
| %inc19 = add nsw i32 %i.1, 1 | |
| br label %for.cond2 | |
| for.inc20: ; preds = %for.cond2 | |
| ret void | |
| } | |
| !0 = !{!"branch_weights", i32 112017436, i32 -735157296} |