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Fix line number data for PIC register setup code. 

2013-10-28  Tom de Vries  <tom@codesourcery.com>
    
	* cfgexpand.c (gimple_expand_cfg): Remove test for parm_birth_insn.
	Don't commit insertions after NOTE_INSN_FUNCTION_BEG.
    
	* gcc.target/arm/require-pic-register-loc.c: New test.

From-SVN: r204121
This commit is contained in:
Tom de Vries 2013-10-28 09:13:12 +00:00 committed by Tom de Vries
parent 3a4906da25
commit dbfd982509
4 changed files with 46 additions and 4 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2013-10-28 Tom de Vries <tom@codesourcery.com>
* cfgexpand.c (gimple_expand_cfg): Remove test for parm_birth_insn.
Don't commit insertions after NOTE_INSN_FUNCTION_BEG.
2013-10-26 Uros Bizjak <ubizjak@gmail.com>
Backport from mainline

12
gcc/cfgexpand.c
View File

@ -4619,14 +4619,18 @@ gimple_expand_cfg (void)
if (e->insns.r)
{
rebuild_jump_labels_chain (e->insns.r);
/* Avoid putting insns before parm_birth_insn. */
/* Put insns after parm birth, but before
NOTE_INSNS_FUNCTION_BEG. */
if (e->src == ENTRY_BLOCK_PTR
&& single_succ_p (ENTRY_BLOCK_PTR)
&& parm_birth_insn)
&& single_succ_p (ENTRY_BLOCK_PTR))
{
rtx insns = e->insns.r;
e->insns.r = NULL_RTX;
emit_insn_after_noloc (insns, parm_birth_insn, e->dest);
if (NOTE_P (parm_birth_insn)
&& NOTE_KIND (parm_birth_insn) == NOTE_INSN_FUNCTION_BEG)
emit_insn_before_noloc (insns, parm_birth_insn, e->dest);
else
emit_insn_after_noloc (insns, parm_birth_insn, e->dest);
}
else
commit_one_edge_insertion (e);

4
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2013-10-28 Tom de Vries <tom@codesourcery.com>
* gcc.target/arm/require-pic-register-loc.c: New test.
2013-10-26 Uros Bizjak <ubizjak@gmail.com>
Backport from mainline

29
gcc/testsuite/gcc.target/arm/require-pic-register-loc.c Normal file
View File

@ -0,0 +1,29 @@
/* { dg-do compile } */
/* { dg-options "-g -fPIC" } */
void *v;
void a (void *x) { }
void b (void) { }
/* line 7. */
int /* line 8. */
main (int argc) /* line 9. */
{ /* line 10. */
if (argc == 12345) /* line 11. */
{
a (v);
return 1;
}
b ();
return 0;
}
/* { dg-final { scan-assembler-not "\.loc 1 7 0" } } */
/* { dg-final { scan-assembler-not "\.loc 1 8 0" } } */
/* { dg-final { scan-assembler-not "\.loc 1 9 0" } } */
/* The loc at the start of the prologue. */
/* { dg-final { scan-assembler-times "\.loc 1 10 0" 1 } } */
/* The loc at the end of the prologue, with the first user line. */
/* { dg-final { scan-assembler-times "\.loc 1 11 0" 1 } } */