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| author | Hans Wennborg <hans@hanshq.net> | 2012-06-01 16:27:21 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2012-06-01 16:27:21 +0000 |
| commit | f0234fcbc9be9798c10dedc3e3c134b7afbc6511 (patch) | |
| tree | 58aa8ee7a2be4159fbbbfe5085f56ea7eee31b1e /test/CodeGen/X86/tls-pic.ll | |
| parent | 6bb5c0074dc4cede2ad8efd420ec91288f91b012 (diff) | |
| download | external_llvm-f0234fcbc9be9798c10dedc3e3c134b7afbc6511.zip external_llvm-f0234fcbc9be9798c10dedc3e3c134b7afbc6511.tar.gz external_llvm-f0234fcbc9be9798c10dedc3e3c134b7afbc6511.tar.bz2 | |
Implement the local-dynamic TLS model for x86 (PR3985)
This implements codegen support for accesses to thread-local variables
using the local-dynamic model, and adds a clean-up pass so that the base
address for the TLS block can be re-used between local-dynamic access on
an execution path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157818 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/tls-pic.ll')
| -rw-r--r-- | test/CodeGen/X86/tls-pic.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/tls-pic.ll b/test/CodeGen/X86/tls-pic.ll index b83416d..c3e8216 100644 --- a/test/CodeGen/X86/tls-pic.ll +++ b/test/CodeGen/X86/tls-pic.ll @@ -2,6 +2,8 @@ ; RUN: llc < %s -march=x86-64 -mtriple=x86_64-linux-gnu -relocation-model=pic | FileCheck -check-prefix=X64 %s @i = thread_local global i32 15 +@j = internal thread_local global i32 42 +@k = internal thread_local global i32 42 define i32 @f1() { entry: @@ -64,4 +66,22 @@ entry: ; X64: callq __tls_get_addr@PLT +define i32 @f5() nounwind { +entry: + %0 = load i32* @j, align 4 + %1 = load i32* @k, align 4 + %add = add nsw i32 %0, %1 + ret i32 %add +} +; X32: f5: +; X32: leal {{[jk]}}@TLSLDM +; X32-NEXT: calll ___tls_get_addr@PLT +; X32-NEXT: movl {{[jk]}}@DTPOFF(%eax) +; X32-NEXT: addl {{[jk]}}@DTPOFF(%eax) + +; X64: f5: +; X64: leaq {{[jk]}}@TLSLD(%rip), %rdi +; X64-NEXT: callq __tls_get_addr@PLT +; X64-NEXT: movl {{[jk]}}@DTPOFF(%rax) +; X64-NEXT: addl {{[jk]}}@DTPOFF(%rax) |