2011-06-22 22:31:57 +00:00
|
|
|
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
|
|
|
|
|
|
|
|
|
|
; Test that we don't drop a block that has its address taken.
|
|
|
|
|
|
2012-01-07 22:42:19 +00:00
|
|
|
; CHECK: Ltmp0: ## Block address taken
|
2011-06-22 22:31:57 +00:00
|
|
|
; CHECK: Ltmp1: ## Block address taken
|
|
|
|
|
|
|
|
|
|
@a = common global i32 0, align 4
|
|
|
|
|
@p = common global i8* null, align 8
|
|
|
|
|
|
|
|
|
|
define void @foo() noreturn nounwind uwtable ssp {
|
|
|
|
|
entry:
|
|
|
|
|
%tmp = load i32* @a, align 4
|
|
|
|
|
%foo = icmp eq i32 0, %tmp
|
|
|
|
|
br i1 %foo, label %sw.bb, label %sw.default
|
|
|
|
|
|
|
|
|
|
sw.bb: ; preds = %entry
|
|
|
|
|
store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
|
|
|
|
|
br label %sw.bb1
|
|
|
|
|
|
|
|
|
|
sw.bb1: ; preds = %sw.default, %sw.bb, %entry
|
|
|
|
|
store i8* blockaddress(@foo, %sw.default), i8** @p, align 8
|
|
|
|
|
br label %sw.default
|
|
|
|
|
|
|
|
|
|
sw.default: ; preds = %sw.bb1, %entry
|
|
|
|
|
store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
|
|
|
|
|
br label %sw.bb1
|
|
|
|
|
}
|
