[PATCH] D40191: [X86] Output cfi directives for saved XMM registers even if no GPRs are saved

[Martin Storsjö via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL318591: [X86] Output cfi directives for saved XMM registers even if no GPRs are saved (authored by mstorsjo).

Changed prior to commit:
  https://reviews.llvm.org/D40191?vs=123398&id=123460#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D40191

Files:
  llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
  llvm/trunk/test/CodeGen/X86/cfi-xmm.ll


Index: llvm/trunk/test/CodeGen/X86/cfi-xmm.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/cfi-xmm.ll
+++ llvm/trunk/test/CodeGen/X86/cfi-xmm.ll
@@ -0,0 +1,21 @@
+; RUN: llc -mtriple x86_64-w64-windows-gnu -filetype=asm -exception-model=dwarf -o - %s | FileCheck %s
+
+define void @_Z1fv() {
+entry:
+  tail call void asm sideeffect "", "~{xmm10},~{xmm15},~{dirflag},~{fpsr},~{flags}"()
+  ret void
+}
+
+; CHECK-LABEL: _Z1fv:
+; CHECK:   .cfi_startproc
+; CHECK:   subq    $40, %rsp
+; CHECK:   movaps  %xmm15, 16(%rsp)
+; CHECK:   movaps  %xmm10, (%rsp)
+; CHECK:   .cfi_def_cfa_offset 48
+; CHECK:   .cfi_offset %xmm10, -48
+; CHECK:   .cfi_offset %xmm15, -32
+; CHECK:   movaps  (%rsp), %xmm10
+; CHECK:   movaps  16(%rsp), %xmm15
+; CHECK:   addq    $40, %rsp
+; CHECK:   retq
+; CHECK:   .cfi_endproc
Index: llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
+++ llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
@@ -1436,8 +1436,7 @@
     }
 
     // Emit DWARF info specifying the offsets of the callee-saved registers.
-    if (PushedRegs)
-      emitCalleeSavedFrameMoves(MBB, MBBI, DL);
+    emitCalleeSavedFrameMoves(MBB, MBBI, DL);
   }
 
   // X86 Interrupt handling function cannot assume anything about the direction


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