diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/cxx_tlscc64.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/cxx_tlscc64.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/cxx_tlscc64.ll b/llvm/test/CodeGen/X86/cxx_tlscc64.ll index 7f6e0d71cd7..6c8e45e42d1 100644 --- a/llvm/test/CodeGen/X86/cxx_tlscc64.ll +++ b/llvm/test/CodeGen/X86/cxx_tlscc64.ll @@ -4,6 +4,7 @@ ; tricks similar to AArch64 fast TLS calling convention (r255821). ; Applying tricks on x86-64 similar to r255821. ; RUN: llc < %s -mtriple=x86_64-apple-darwin -enable-shrink-wrap=true | FileCheck %s +; RUN: llc < %s -mtriple=x86_64-apple-darwin -O0 | FileCheck %s --check-prefix=CHECK-O0 %struct.S = type { i8 } @sg = internal thread_local global %struct.S zeroinitializer, align 1 @@ -65,3 +66,14 @@ __tls_init.exit: define cxx_fast_tlscc nonnull i32* @_ZTW4sum1() nounwind { ret i32* @sum1 } + +; Make sure at O0 we don't overwrite RBP. +; CHECK-O0-LABEL: _ZTW4sum2 +; CHECK-O0: pushq %rbp +; CHECK-O0: movq %rsp, %rbp +; CHECK-O0-NOT: movq %r{{.*}}, (%rbp) +define cxx_fast_tlscc i32* @_ZTW4sum2() #0 { + ret i32* @sum1 +} + +attributes #0 = { nounwind "no-frame-pointer-elim"="true" } |
