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d6379a993c
don't remove blocks that have their address taken. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133659 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
980 B
LLVM
29 lines
980 B
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
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; Test that we don't drop a block that has its address taken.
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; CHECK: Ltmp1: ## Block address taken
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; CHECK: Ltmp2: ## Block address taken
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@a = common global i32 0, align 4
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@p = common global i8* null, align 8
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define void @foo() noreturn nounwind uwtable ssp {
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entry:
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%tmp = load i32* @a, align 4
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%foo = icmp eq i32 0, %tmp
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br i1 %foo, label %sw.bb, label %sw.default
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sw.bb: ; preds = %entry
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store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
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br label %sw.bb1
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sw.bb1: ; preds = %sw.default, %sw.bb, %entry
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store i8* blockaddress(@foo, %sw.default), i8** @p, align 8
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br label %sw.default
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sw.default: ; preds = %sw.bb1, %entry
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store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
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br label %sw.bb1
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}
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