File: align-branch-boundary-suppressions-tls.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (30 lines) | stat: -rw-r--r-- 1,115 bytes parent folder | download | duplicates (6)
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
29
30
;; Test that we don't pad the x86-64 General Dynamic/Local Dynamic TLS code
;; sequence. It uses prefixes to allow linker relaxation. We need to disable
;; prefix or nop padding for it. For simplicity and consistency, disable for
;; Local Dynamic and 32-bit as well.
; RUN: llc -mtriple=i386 -relocation-model=pic -x86-branches-within-32B-boundaries < %s | FileCheck --check-prefixes=CHECK,32 %s
; RUN: llc -mtriple=x86_64 -relocation-model=pic -x86-branches-within-32B-boundaries < %s | FileCheck --check-prefixes=CHECK,64 %s

@gd = external thread_local global i32
@ld = internal thread_local global i32 0

define i32 @tls_get_addr() {
; CHECK-LABEL: tls_get_addr:
; CHECK: #noautopadding
; 32: leal gd@TLSGD(,%ebx), %eax
; 32: calll ___tls_get_addr@PLT
; 64: data16
; 64: leaq gd@TLSGD(%rip), %rdi
; 64: callq __tls_get_addr@PLT
; CHECK: #autopadding
; CHECK: #noautopadding
; 32: leal ld@TLSLDM(%ebx), %eax
; 32: calll ___tls_get_addr@PLT
; 64: leaq ld@TLSLD(%rip), %rdi
; 64: callq __tls_get_addr@PLT
; CHECK: #autopadding
  %1 = load i32, ptr @gd
  %2 = load i32, ptr @ld
  %3 = add i32 %1, %2
  ret i32 %3
}