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