| ; RUN: opt -S -indvars -loop-unswitch < %s | FileCheck %s |
| ; RUN: opt -S -indvars -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s |
| |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @test_01() { |
| |
| ; Make sure we don't fail by SCEV's assertion due to incorrect invalidation. |
| ; CHECK-LABEL: @test_01 |
| |
| entry: |
| br label %loop |
| |
| loop: ; preds = %backedge, %entry |
| %p_50.addr.0 = phi i16 [ undef, %entry ], [ %add2699, %backedge ] |
| %idxprom2690 = sext i16 %p_50.addr.0 to i32 |
| %arrayidx2691 = getelementptr inbounds [5 x i32], [5 x i32]* undef, i32 0, i32 %idxprom2690 |
| %0 = load i32, i32* %arrayidx2691, align 1 |
| %tobool2692 = icmp ne i32 %0, 0 |
| br label %inner_loop |
| |
| inner_loop: ; preds = %inner_backedge, %loop |
| br i1 %tobool2692, label %backedge, label %inner_backedge |
| |
| inner_backedge: ; preds = %inner_loop |
| br label %inner_loop |
| |
| backedge: ; preds = %inner_loop |
| %add2699 = add nsw i16 %p_50.addr.0, 1 |
| br i1 false, label %loop, label %exit |
| |
| exit: ; preds = %backedge |
| unreachable |
| } |
