On Solaris 10 with cc I see this compilation error:
cc -D_STDC_C99= -xarch=generic64 -O -DHAVE_CONFIG_H -I. -I../../gllib -I..
-DGNULIB_STRICT_CHECKING=1 -I/home/haible/prefix-x86_64/include -D_REENTRANT
-g -c -o simple-atomic.o ../../gllib/simple-atomic.c
Assembler: simple-atomic.c
"/tmp/GAA45ayy3", line 97 : Syntax error
Near line: " movl %rsi,%rax"
cc: ube failed for ../../gllib/simple-atomic.c
*** Error code 2
This patch fixes it.
2021-03-18 Bruno Haible <br...@clisp.org>
simple-atomic: Fix compilation error on Solaris 10/x86_64 with cc.
* lib/simple-atomic.c (atomic_compare_and_swap_ptr): Correct asm
instruction.
diff --git a/lib/simple-atomic.c b/lib/simple-atomic.c
index 7c4f7e9..017fb56 100644
--- a/lib/simple-atomic.c
+++ b/lib/simple-atomic.c
@@ -277,7 +277,7 @@ atomic_compare_and_swap_ptr (uintptr_t volatile *vp,
return oldval;
# else /* __SUNPRO_C */
# if defined __x86_64__
- asm (" movl %rsi,%rax\n"
+ asm (" movq %rsi,%rax\n"
" lock\n cmpxchgq %rdx,(%rdi)");
# elif defined __i386
asm (" movl 16(%ebp),%ecx\n"
