| ; RUN: llc < %s -march=arm | FileCheck %s |
| |
| ; Do not if-convert when branches go to the different loops. |
| ; CHECK: t: |
| ; CHECK-NOT: subgt |
| ; CHECK-NOT: suble |
| ; Don't use |
| define i32 @t(i32 %a, i32 %b) { |
| entry: |
| %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] |
| br i1 %tmp1434, label %bb17, label %bb.outer |
| |
| bb.outer: ; preds = %cond_false, %entry |
| %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ] ; <i32> [#uses=5] |
| %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] |
| br label %bb |
| |
| bb: ; preds = %cond_true, %bb.outer |
| %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2] |
| %tmp. = sub i32 0, %b_addr.021.0.ph ; <i32> [#uses=1] |
| %tmp.40 = mul i32 %indvar, %tmp. ; <i32> [#uses=1] |
| %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph ; <i32> [#uses=6] |
| %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph ; <i1> [#uses=1] |
| br i1 %tmp3, label %cond_true, label %cond_false |
| |
| cond_true: ; preds = %bb |
| %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph ; <i32> [#uses=2] |
| %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph ; <i1> [#uses=1] |
| %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] |
| br i1 %tmp1437, label %bb17, label %bb |
| |
| cond_false: ; preds = %bb |
| %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0 ; <i32> [#uses=2] |
| %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10 ; <i1> [#uses=1] |
| br i1 %tmp14, label %bb17, label %bb.outer |
| |
| bb17: ; preds = %cond_false, %cond_true, %entry |
| %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] |
| ret i32 %a_addr.026.1 |
| } |