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reload1.c (reload_combine): Fixed calculation of first_index_reg, last_index_reg.

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* reload1.c (reload_combine): Fixed calculation of
	first_index_reg, last_index_reg.

From-SVN: r37360
This commit is contained in:
Matthew Hiller 2000-11-10 05:22:48 +00:00 committed by Jeff Law
parent 13507bd80d
commit 881a89697e
2 changed files with 8 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2000-11-09 Matthew Hiller <hiller@redhat.com>
* reload1.c (reload_combine): Fixed calculation of
first_index_reg, last_index_reg.
2000-11-09 Mark Mitchell <mark@codesourcery.com>
* c-dump.c (dequeue_and_dump): Dump function bodies.

6
gcc/reload1.c
View File

@ -8363,7 +8363,7 @@ static void
reload_combine ()
{
rtx insn, set;
int first_index_reg = 1, last_index_reg = 0;
int first_index_reg = -1, last_index_reg;
int i;
unsigned int r;
int last_label_ruid;
@ -8381,14 +8381,14 @@ reload_combine ()
for (r = 0; r < FIRST_PSEUDO_REGISTER; r++)
if (TEST_HARD_REG_BIT (reg_class_contents[INDEX_REG_CLASS], r))
{
if (! first_index_reg)
if (first_index_reg == -1)
first_index_reg = r;
last_index_reg = r;
}
/* If no index register is available, we can quit now. */
if (first_index_reg > last_index_reg)
if (first_index_reg == -1)
return;
/* Set up LABEL_LIVE and EVER_LIVE_AT_START. The register lifetime