commit 1cac67ebfcd71710b1bb8335e71ad04eb3387df5
author Daniel Kiss <daniel.kiss@arm.com> Fri Oct 01 16:49:37 2021 +0200
committer Copybara-Service <copybara-worker@google.com> Fri Oct 01 07:55:34 2021 -0700
tree 6f7b78944f7527d24350aaa0c5ed48b30a488d9c
parent 39885041cc11e8965e746cb2217e50d2008f484d

[libunwind] Fix cfi_register for float registers.

Fixes D110144.
registers.getFloatRegister is not const in ARM therefor can't be called here.

Reviewed By: mstorsjo, #libunwind

Differential Revision: https://reviews.llvm.org/D110731

GitOrigin-RevId: 532783f9e1e65c7bd48b1592d2376e9dd47c5a73

src/DwarfInstructions.hpp

diff --git a/src/DwarfInstructions.hpp b/src/DwarfInstructions.hpp
index 53baf6a..b58c51b 100644
--- a/src/DwarfInstructions.hpp
+++ b/src/DwarfInstructions.hpp
@@ -115,10 +115,12 @@
     return addressSpace.getDouble(
         evaluateExpression((pint_t)savedReg.value, addressSpace,
                             registers, cfa));
-  case CFI_Parser<A>::kRegisterInRegister:
-    return registers.getFloatRegister((int)savedReg.value);
   case CFI_Parser<A>::kRegisterUndefined:
     return 0.0;
+  case CFI_Parser<A>::kRegisterInRegister:
+#ifndef _LIBUNWIND_TARGET_ARM
+    return registers.getFloatRegister((int)savedReg.value);
+#endif
   case CFI_Parser<A>::kRegisterIsExpression:
   case CFI_Parser<A>::kRegisterUnused:
   case CFI_Parser<A>::kRegisterOffsetFromCFA: