[PATCH, i386]: Fix PR testsuite/51524
Uros Bizjak
ubizjak@gmail.com
Tue Dec 13 15:37:00 GMT 2011
Hello!
Recent RA change disturbs delicate balance of register allocation, so
a couple of scan tests begins to fail.
Attached patch fixes these scan failures by forcing arguments of test
function in registers.
2011-12-13 Uros Bizjak <ubizjak@gmail.com>
PR testsuite/51524
* gcc.target/i386/bmi2-mulx32-1.c (gen_mulx): Add attribute regparm(2).
* gcc.target/i386/bmi2-mulx32-2.c (calc_mulx_u32): Ditto.
Tested on x86_64-pc-linux-gnu {,-m32}, committed to mainline SVN.
Uros.
Index: gcc.target/i386/bmi2-mulx32-1.c
===================================================================
--- gcc.target/i386/bmi2-mulx32-1.c (revision 182192)
+++ gcc.target/i386/bmi2-mulx32-1.c (working copy)
@@ -15,7 +15,7 @@
return res;
}
-__attribute__((noinline))
+__attribute__((noinline, regparm (2)))
unsigned long long
gen_mulx (unsigned a, unsigned b)
{
Index: gcc.target/i386/bmi2-mulx32-2.c
===================================================================
--- gcc.target/i386/bmi2-mulx32-2.c (revision 182192)
+++ gcc.target/i386/bmi2-mulx32-2.c (working copy)
@@ -17,7 +17,7 @@
return res;
}
-__attribute__((noinline))
+__attribute__((noinline, regparm (2)))
unsigned calc_mulx_u32 (unsigned x, unsigned y, unsigned *res_h)
{
return (unsigned) _mulx_u32 (x, y, res_h);
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