Add a target asm info hook to specify that particular bits of data in the FDE

should be forced to 32-bits (.long) even on 64-bit architectures. Darwin wants
these bits to be 64-bits (.quad). However, other platforms may disagree.

This is just the info right now and is part of a work-in-progress which needs
this. We'll add the actual *use* of this soon.

llvm-svn: 80024

2 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCAsmInfo.cpp b/llvm/lib/MC/MCAsmInfo.cpp
index 0653b19a568..6a1b0c2eee2 100644
--- a/llvm/lib/MC/MCAsmInfo.cpp
+++ b/llvm/lib/MC/MCAsmInfo.cpp
@@ -78,6 +78,7 @@ MCAsmInfo::MCAsmInfo() {
   DwarfRequiresFrameSection = true;
   DwarfUsesInlineInfoSection = false;
   Is_EHSymbolPrivate = true;
+  ForceEncodingOfFDETo32Bits = true;
   GlobalEHDirective = 0;
   SupportsWeakOmittedEHFrame = true;
   DwarfSectionOffsetDirective = 0;
diff --git a/llvm/lib/MC/MCAsmInfoDarwin.cpp b/llvm/lib/MC/MCAsmInfoDarwin.cpp
index 38b9e5b90b5..e2069b0038d 100644
--- a/llvm/lib/MC/MCAsmInfoDarwin.cpp
+++ b/llvm/lib/MC/MCAsmInfoDarwin.cpp
@@ -52,6 +52,7 @@ MCAsmInfoDarwin::MCAsmInfoDarwin() {
   // doesn't hurt anything.
   // FIXME: I need to get this from Triple.
   Is_EHSymbolPrivate = false;
+  ForceEncodingOfFDETo32Bits = false;
   GlobalEHDirective = "\t.globl\t";
   SupportsWeakOmittedEHFrame = false;