File: tail-dup-addr.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (28 lines) | stat: -rw-r--r-- 985 bytes parent folder | download | duplicates (20)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
; 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
}