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Re: [PATCH] Improve debugging info (PR debug/53948 P1 regression)

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.
Do we have any dwarf targets that don't support .loc?

While the bug isn't dwarf specific, I figured dwarf is used enough that just testing it on dwarf targets would be sufficient coverage. Thus the test is in the dwarf specific part of the testsuite.

jeff

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