| ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s |
| |
| ; Test that we don't drop a block that has its address taken. |
| |
| ; CHECK: Ltmp0: ## Block address taken |
| ; 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, 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 |
| } |
