File: tls-06.ll

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (17 lines) | stat: -rw-r--r-- 600 bytes parent folder | download | duplicates (20)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
; Test general-dynamic TLS access optimizations.
;
; If we access two different TLS variables, we need two calls to
; __tls_get_offset, but should load _GLOBAL_OFFSET_TABLE only once.
;
; RUN: llc < %s -mcpu=z10 -mtriple=s390x-linux-gnu -relocation-model=pic | grep "__tls_get_offset" | count 2
; RUN: llc < %s -mcpu=z10 -mtriple=s390x-linux-gnu -relocation-model=pic | grep "_GLOBAL_OFFSET_TABLE_" | count 1

@x = thread_local global i32 0
@y = thread_local global i32 0

define i32 @foo() {
  %valx = load i32, i32* @x
  %valy = load i32, i32* @y
  %add = add nsw i32 %valx, %valy
  ret i32 %add
}