commit 4d6f42532804dcc0c943723fce15ce747c15661c
author Simon Atanasyan <simon@atanasyan.com> Tue Oct 09 11:29:51 2018 +0000
committer Simon Atanasyan <simon@atanasyan.com> Tue Oct 09 11:29:51 2018 +0000
tree 207683f1dd58373d17e701a887e2ee96c9df1296
parent d465318c6d6faff43885378bdd7fc2b938b3dcbb

[mips] Fix FDE/CFI encoding in case of N32 ABI

For O32 and N32 ABI FDE/CFI encoding should be `DW_EH_PE_sdata4` and only
N64 ABI uses `DW_EH_PE_sdata8`. To cover all cases this patch check code
pointer size and setup a correct FDE/CFI encoding type.

Differential revision: https://reviews.llvm.org/D52876

llvm-svn: 344040

llvm/lib/MC/MCObjectFileInfo.cpp

diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp
index 0f9070b..edfccfc 100644
--- a/llvm/lib/MC/MCObjectFileInfo.cpp
+++ b/llvm/lib/MC/MCObjectFileInfo.cpp
@@ -291,11 +291,11 @@
   switch (T.getArch()) {
   case Triple::mips:
   case Triple::mipsel:
-    FDECFIEncoding = dwarf::DW_EH_PE_sdata4;
-    break;
   case Triple::mips64:
   case Triple::mips64el:
-    FDECFIEncoding = dwarf::DW_EH_PE_sdata8;
+    FDECFIEncoding = Ctx->getAsmInfo()->getCodePointerSize() == 4
+                         ? dwarf::DW_EH_PE_sdata4
+                         : dwarf::DW_EH_PE_sdata8;
     break;
   case Triple::ppc64:
   case Triple::ppc64le: