32 lines
723 B
LLVM
32 lines
723 B
LLVM
; RUN: opt -basicaa -gvn -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64"
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; CHECK-LABEL: @foo(
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; CHECK: entry.end_crit_edge:
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; CHECK: %n.pre = load i32* %q.phi.trans.insert
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; CHECK: then:
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; CHECK: store i32 %z
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; CHECK: end:
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; CHECK: %n = phi i32 [ %n.pre, %entry.end_crit_edge ], [ %z, %then ]
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; CHECK: ret i32 %n
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@G = external global [100 x i32]
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define i32 @foo(i32 %x, i32 %z) {
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entry:
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%tobool = icmp eq i32 %z, 0
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br i1 %tobool, label %end, label %then
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then:
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%i = sext i32 %x to i64
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%p = getelementptr [100 x i32]* @G, i64 0, i64 %i
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store i32 %z, i32* %p
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br label %end
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end:
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%j = sext i32 %x to i64
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%q = getelementptr [100 x i32]* @G, i64 0, i64 %j
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%n = load i32* %q
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ret i32 %n
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}
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