The assembler code needs to say it uses AltiVec instructions.

Tested on powerpc64-linux {-m32,-m64} and on powerpc64le-linux.
Committing to trunk.


2019-05-27  Segher Boessenkool  <seg...@kernel.crashing.org>

libsanitizer/
        PR target/90639
        * tsan/tsan_rtl_ppc64.S: Add ".machine altivec".

---
 libsanitizer/tsan/tsan_rtl_ppc64.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libsanitizer/tsan/tsan_rtl_ppc64.S 
b/libsanitizer/tsan/tsan_rtl_ppc64.S
index 8285e21..9e533a7 100644
--- a/libsanitizer/tsan/tsan_rtl_ppc64.S
+++ b/libsanitizer/tsan/tsan_rtl_ppc64.S
@@ -1,5 +1,6 @@
 #include "tsan_ppc_regs.h"
 
+        .machine altivec
         .section .text
         .hidden __tsan_setjmp
         .globl _setjmp
-- 
1.8.3.1

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