| Rafael Espindola | d6379a9 | 2011-06-22 22:31:57 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s |
| 2 | |
| 3 | ; Test that we don't drop a block that has its address taken. |
| 4 | |
| Rafael Espindola | 547be26 | 2012-01-07 22:42:19 +0000 | [diff] [blame^] | 5 | ; CHECK: Ltmp0: ## Block address taken |
| Rafael Espindola | d6379a9 | 2011-06-22 22:31:57 +0000 | [diff] [blame] | 6 | ; CHECK: Ltmp1: ## Block address taken |
| Rafael Espindola | d6379a9 | 2011-06-22 22:31:57 +0000 | [diff] [blame] | 7 | |
| 8 | @a = common global i32 0, align 4 |
| 9 | @p = common global i8* null, align 8 |
| 10 | |
| 11 | define void @foo() noreturn nounwind uwtable ssp { |
| 12 | entry: |
| 13 | %tmp = load i32* @a, align 4 |
| 14 | %foo = icmp eq i32 0, %tmp |
| 15 | br i1 %foo, label %sw.bb, label %sw.default |
| 16 | |
| 17 | sw.bb: ; preds = %entry |
| 18 | store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8 |
| 19 | br label %sw.bb1 |
| 20 | |
| 21 | sw.bb1: ; preds = %sw.default, %sw.bb, %entry |
| 22 | store i8* blockaddress(@foo, %sw.default), i8** @p, align 8 |
| 23 | br label %sw.default |
| 24 | |
| 25 | sw.default: ; preds = %sw.bb1, %entry |
| 26 | store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8 |
| 27 | br label %sw.bb1 |
| 28 | } |