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re PR debug/44178 (-fcompare-debug failure with -O1 -fgcse -fsched-pressure -funroll-loops -fschedule-insns) 

PR debug/44178
	* haifa-sched.c (initiate_bb_reg_pressure_info): Do not call
	setup_ref_regs for DEBUG_INSNs.

	* g++.dg/debug/pr44178.C: New test.

From-SVN: r159632
This commit is contained in:
Jakub Jelinek 2010-05-20 18:34:43 +02:00 committed by Jakub Jelinek
parent d377fbbf51
commit 69b45d71f3
4 changed files with 51 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-05-20 Jakub Jelinek <jakub@redhat.com>
PR debug/44178
* haifa-sched.c (initiate_bb_reg_pressure_info): Do not call
setup_ref_regs for DEBUG_INSNs.
2010-05-20 Jan Hubicka <jh@suse.cz>
PR middle-end/44197

2
gcc/haifa-sched.c
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@ -718,7 +718,7 @@ initiate_bb_reg_pressure_info (basic_block bb)
if (current_nr_blocks > 1)
FOR_BB_INSNS (bb, insn)
if (INSN_P (insn))
if (NONDEBUG_INSN_P (insn))
setup_ref_regs (PATTERN (insn));
initiate_reg_pressure_info (df_get_live_in (bb));
#ifdef EH_RETURN_DATA_REGNO

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-05-20 Jakub Jelinek <jakub@redhat.com>
PR debug/44178
* g++.dg/debug/pr44178.C: New test.
2010-05-20 Changpeng Fang <changpeng.fang@amd.com>
PR middle-end/44185

39
gcc/testsuite/g++.dg/debug/pr44178.C Normal file
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@ -0,0 +1,39 @@
// PR debug/44178
// { dg-do compile }
// { dg-options "-funroll-loops -fcompare-debug" { target i?86-*-* x86_64-*-* } }
// { dg-options "-fsched-pressure -funroll-loops -fschedule-insns -fcompare-debug" { target i?86-*-* x86_64-*-* } }
struct A
{
A ();
A (const A &) {}
A &operator = (const A &);
};
struct B
{
int u1;
A u2;
int u3;
int i;
};
B f1 (int *);
B f2 (int, int, int, int);
B f3 (B *, B *);
B
f4 (int x, int y, int z)
{
B b1, b2;
for (int i = x; i > 0; i--)
for (int j = y; j > 0; j--)
{
int k;
f1 (&k);
b2 = f2 (i, 0, 0, z);
if (b2.i) return b2;
f3 (&b1, &b2);
}
return b1;
}