forked from OSchip/llvm-project
22 lines
655 B
LLVM
22 lines
655 B
LLVM
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; This testcase can be simplified by "realizing" that alloca can never return
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; null.
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; RUN: opt < %s -instcombine -simplifycfg -S | FileCheck %s
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; CHECK-NOT: br
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declare i32 @bitmap_clear(...)
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define i32 @oof() {
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entry:
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%live_head = alloca i32 ; <i32*> [#uses=2]
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%tmp.1 = icmp ne i32* %live_head, null ; <i1> [#uses=1]
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br i1 %tmp.1, label %then, label %UnifiedExitNode
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then: ; preds = %entry
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%tmp.4 = call i32 (...) @bitmap_clear( i32* %live_head ) ; <i32> [#uses=0]
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br label %UnifiedExitNode
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UnifiedExitNode: ; preds = %then, %entry
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ret i32 0
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}
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