Author: George Koehler
Date: 2022-02-21T15:31:23-05:00
New Revision: 3fa2e66c10aadac1d209afadba34d90c9bd95221

URL: 
https://github.com/llvm/llvm-project/commit/3fa2e66c10aadac1d209afadba34d90c9bd95221
DIFF: 
https://github.com/llvm/llvm-project/commit/3fa2e66c10aadac1d209afadba34d90c9bd95221.diff

LOG: [libunwind] Further fix for 32-bit PowerPC processors without AltiVec

https://reviews.llvm.org/D91906 did most of the work necessary to fix libunwind 
on
32-bit PowerPC processors without AltiVec, but there was one more piece 
necessary.

Reviewed By: luporl

Differential Revision: https://reviews.llvm.org/D120197

Added: 
    

Modified: 
    libunwind/src/UnwindRegistersSave.S

Removed: 
    


################################################################################
diff  --git a/libunwind/src/UnwindRegistersSave.S 
b/libunwind/src/UnwindRegistersSave.S
index 9566bb0335fee..b39489235ce63 100644
--- a/libunwind/src/UnwindRegistersSave.S
+++ b/libunwind/src/UnwindRegistersSave.S
@@ -603,9 +603,11 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext)
   stw     30,128(3)
   stw     31,132(3)
 
+#if defined(__ALTIVEC__)
   // save VRSave register
   mfspr   0, 256
   stw     0, 156(3)
+#endif
   // save CR registers
   mfcr    0
   stw     0, 136(3)


        
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