1 ; RUN: llc < %s -march=arm | FileCheck %s 2 3 ; Do not if-convert when branches go to the different loops. 4 ; CHECK-LABEL: t: 5 ; CHECK-NOT: subgt 6 ; CHECK-NOT: suble 7 ; Don't use 8 define i32 @t(i32 %a, i32 %b) { 9 entry: 10 %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] 11 br i1 %tmp1434, label %bb17, label %bb.outer 12 13 bb.outer: ; preds = %cond_false, %entry 14 %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ] ; <i32> [#uses=5] 15 %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] 16 br label %bb 17 18 bb: ; preds = %cond_true, %bb.outer 19 %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2] 20 %tmp. = sub i32 0, %b_addr.021.0.ph ; <i32> [#uses=1] 21 %tmp.40 = mul i32 %indvar, %tmp. ; <i32> [#uses=1] 22 %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph ; <i32> [#uses=6] 23 %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph ; <i1> [#uses=1] 24 br i1 %tmp3, label %cond_true, label %cond_false 25 26 cond_true: ; preds = %bb 27 %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph ; <i32> [#uses=2] 28 %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph ; <i1> [#uses=1] 29 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] 30 br i1 %tmp1437, label %bb17, label %bb 31 32 cond_false: ; preds = %bb 33 %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0 ; <i32> [#uses=2] 34 %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10 ; <i1> [#uses=1] 35 br i1 %tmp14, label %bb17, label %bb.outer 36 37 bb17: ; preds = %cond_false, %cond_true, %entry 38 %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] 39 ret i32 %a_addr.026.1 40 } 41
