diff options
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 2 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index e50acd0274..5ca8555a0f 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/lib/Target/X86/X86Instr64bit.td @@ -1687,6 +1687,7 @@ def MOV64ri64i32 : Ii32<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64i32imm:$src), // Thread Local Storage Instructions //===----------------------------------------------------------------------===// +// ELF TLS Support // All calls clobber the non-callee saved registers. RSP is marked as // a use to prevent stack-pointer assignments that appear immediately // before calls from potentially appearing dead. @@ -1705,6 +1706,7 @@ def TLS_addr64 : I<0, Pseudo, (outs), (ins lea64mem:$sym), [(X86tlsaddr tls64addr:$sym)]>, Requires<[In64BitMode]>; +// Darwin TLS Support // For x86_64, the address of the thunk is passed in %rdi, on return // the address of the variable is in %rax. All other registers are preserved. let Defs = [RAX], diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index f5c5cdd6f5..b3ba4b655d 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -3848,6 +3848,7 @@ def MOV32r0 : I<0x31, MRMInitReg, (outs GR32:$dst), (ins), "", // Thread Local Storage Instructions // +// ELF TLS Support // All calls clobber the non-callee saved registers. ESP is marked as // a use to prevent stack-pointer assignments that appear immediately // before calls from potentially appearing dead. @@ -3862,6 +3863,7 @@ def TLS_addr32 : I<0, Pseudo, (outs), (ins lea32mem:$sym), [(X86tlsaddr tls32addr:$sym)]>, Requires<[In32BitMode]>; +// Darwin TLS Support // For i386, the address of the thunk is passed on the stack, on return the // address of the variable is in %eax. %ecx is trashed during the function // call. All other registers are preserved. |