On 02/08/2013 10:55 AM, Jakub Jelinek wrote:
On Fri, Feb 08, 2013 at 09:54:19AM -0700, Jeff Law wrote:
PR debug/53948
* emit-rtl.c (reg_is_parm_p): New function.
* regs.h (reg_is_parm_p): New prototype.
* ira-conflicts.c (ira_build_conflicts): Allow parameters in
callee-clobbered registers.
This looks good to me.
* gcc.dg/debug/dwarf2/pr53948.c: New test.
But the testcase is problematic.
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/dwarf2/pr53948.c
@@ -0,0 +1,10 @@
+/* Test that we emit a .line directive for the line
+ with local variable initializations. */
+/* { dg-options "-O0 -g" } */
+/* { dg-final { scan-assembler ".loc 1 8 0" } } */
It will fail on any target which doesn't support .loc
directives.
I'd say better would be to scan the -fdump-rtl-final
for pr53948.c:8 regex.
How about this:
/* Test that we have line information for the line
with local variable initializations. */
/* { dg-options "-O0 -g -fdump-rtl-final" } */
/* { dg-final { scan-rtl-dump "pr53948.c:7" "final" } } */
int f (register int a, register int b) {
register int x = b, y = a;
return x + y; }
Jeff
