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mips.c (mips_cfun_call_saved_reg_p): Handle global registers.

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gcc/
	* config/mips/mips.c (mips_cfun_call_saved_reg_p): Handle global
	registers.

gcc/testsuite/
	* gcc.target/mips/reg-var-1.c: New test.

From-SVN: r172616
This commit is contained in:
Richard Sandiford 2011-04-17 17:29:52 +00:00 committed by Richard Sandiford
parent 10158cd3db
commit b14ee6c9ce
4 changed files with 30 additions and 0 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2011-04-17 Richard Sandiford <rdsandiford@googlemail.com>
* config/mips/mips.c (mips_cfun_call_saved_reg_p): Handle global
registers.
2011-04-17 Jan Hubicka <jh@suse.cz>
* cgrpah.h (struct cgraph_node): Remove finalized_by_frontend.

5
gcc/config/mips/mips.c
View File

@ -9097,6 +9097,11 @@ mips_interrupt_extra_call_saved_reg_p (unsigned int regno)
static bool
mips_cfun_call_saved_reg_p (unsigned int regno)
{
/* If the user makes an ordinarily-call-saved register global,
that register is no longer call-saved. */
if (global_regs[regno])
return false;
/* Interrupt handlers need to save extra registers. */
if (cfun->machine->interrupt_handler_p
&& mips_interrupt_extra_call_saved_reg_p (regno))

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2011-04-17 Richard Sandiford <rdsandiford@googlemail.com>
* gcc.target/mips/reg-var-1.c: New test.
2011-04-17 Jan Hubicka <jh@suse.cz>
* gcc.dg/winline-5.c: Update testcase.

16
gcc/testsuite/gcc.target/mips/reg-var-1.c Normal file
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@ -0,0 +1,16 @@
/* { dg-do run } */
register int g asm ("$18");
void __attribute__((noinline))
test (void)
{
g = g + 1;
}
int
main (void)
{
g = 2;
test ();
return g != 3;
}