xref: /llvm-project/llvm/test/CodeGen/X86/threadlocal_address.ll (revision 6bbccd2516c3a843809a8303da48abce58a88855)
1; RUN: llc -mtriple=x86_64-unknown-linux-gnu -stop-after=finalize-isel %s -o - | FileCheck %s
2
3@i = thread_local global i32 0, align 4
4
5define noundef i32 @foo() {
6; CHECK: %0:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gottpoff) @i, $noreg :: (load (s64) from got)
7; CHECK: %1:gr32 = MOV32rm %0, 1, $noreg, 0, $fs :: (dereferenceable load (s32) from %ir.0)
8; CHECK: %2:gr32 = nsw INC32r %1, implicit-def dead $eflags
9; CHECK: MOV32mr %0, 1, $noreg, 0, $fs, %2 :: (store (s32) into %ir.0)
10; CHECK: $eax = COPY %2
11; CHECK: RET 0, $eax
12entry:
13  %0 = call ptr @llvm.threadlocal.address(ptr @i)
14  %1 = load i32, ptr %0, align 4
15  %inc = add nsw i32 %1, 1
16  store i32 %inc, ptr %0, align 4
17  %2 = call ptr @llvm.threadlocal.address(ptr @i)
18  %3 = load i32, ptr %2, align 4
19  ret i32 %3
20}
21
22@j =  thread_local addrspace(1) global  ptr addrspace(0) @i, align 4
23define noundef i32 @bar() {
24; CHECK: %0:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gottpoff) @j, $noreg :: (load (s64) from got)
25; CHECK: %1:gr32 = MOV32rm %0, 1, $noreg, 0, $fs :: (dereferenceable load (s32) from %ir.0, addrspace 1)
26; CHECK: %2:gr32 = nsw INC32r %1, implicit-def dead $eflags
27; CHECK: MOV32mr %0, 1, $noreg, 0, $fs, %2 :: (store (s32) into %ir.0, addrspace 1)
28; CHECK: $eax = COPY %2
29; CHECK: RET 0, $eax
30entry:
31  %0 = call ptr addrspace(1) @llvm.threadlocal.address.p1(ptr addrspace(1) @j)
32  %1 = load i32, ptr addrspace(1) %0, align 4
33  %inc = add nsw i32 %1, 1
34  store i32 %inc, ptr addrspace(1) %0, align 4
35  %2 = call ptr addrspace(1) @llvm.threadlocal.address.p1(ptr addrspace(1) @j)
36  %3 = load i32, ptr addrspace(1) %2, align 4
37  ret i32 %3
38}
39
40declare nonnull ptr @llvm.threadlocal.address(ptr nonnull) nounwind readnone willreturn
41declare nonnull ptr addrspace(1) @llvm.threadlocal.address.p1(ptr addrspace(1) nonnull) nounwind readnone willreturn
42