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sparc.c (output_cbranch): Fix accidental squashing of the fp branch pre-delay nop.

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* sparc.c (output_cbranch): Fix accidental squashing of the
        fp branch pre-delay nop.

From-SVN: r31625
This commit is contained in:
Richard Henderson 2000-01-25 19:13:13 -08:00 • committed by Richard Henderson
parent 7913f3d028
commit 5850dc005d
2 changed files with 108 additions and 98 deletions
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5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2000-01-25 Richard Henderson <rth@cygnus.com>
* sparc.c (output_cbranch): Fix accidental squashing of the
fp branch pre-delay nop.
2000-01-25 Richard Henderson <rth@cygnus.com>
* tree.def (UNNE_EXPR): Remove.

201
gcc/config/sparc/sparc.c
View file

@ -4641,15 +4641,6 @@ output_cbranch (op, label, reversed, annul, noop, insn)
const char *branch;
int labeloff, spaces = 8;
/* ??? !v9: FP branches cannot be preceded by another floating point insn.
Because there is currently no concept of pre-delay slots, we can fix
this only by always emitting a nop before a floating point branch. */
if ((mode == CCFPmode || mode == CCFPEmode) && ! TARGET_V9)
strcpy (string, "nop\n\t");
else
string[0] = '\0';
if (reversed)
{
/* Reversal of FP compares takes care -- an ordered compare
@ -4662,98 +4653,112 @@ output_cbranch (op, label, reversed, annul, noop, insn)
/* Start by writing the branch condition. */
if (mode == CCFPmode || mode == CCFPEmode)
switch (code)
{
case NE:
branch = "fbne";
break;
case EQ:
branch = "fbe";
break;
case GE:
branch = "fbge";
break;
case GT:
branch = "fbg";
break;
case LE:
branch = "fble";
break;
case LT:
branch = "fbl";
break;
case UNORDERED:
branch = "fbu";
break;
case ORDERED:
branch = "fbo";
break;
case UNGT:
branch = "fbug";
break;
case UNLT:
branch = "fbul";
break;
case UNEQ:
branch = "fbue";
break;
case UNGE:
branch = "fbuge";
break;
case UNLE:
branch = "fbule";
break;
case LTGT:
branch = "fblg";
break;
{
switch (code)
{
case NE:
branch = "fbne";
break;
case EQ:
branch = "fbe";
break;
case GE:
branch = "fbge";
break;
case GT:
branch = "fbg";
break;
case LE:
branch = "fble";
break;
case LT:
branch = "fbl";
break;
case UNORDERED:
branch = "fbu";
break;
case ORDERED:
branch = "fbo";
break;
case UNGT:
branch = "fbug";
break;
case UNLT:
branch = "fbul";
break;
case UNEQ:
branch = "fbue";
break;
case UNGE:
branch = "fbuge";
break;
case UNLE:
branch = "fbule";
break;
case LTGT:
branch = "fblg";
break;
default:
abort ();
}
default:
abort ();
}
/* ??? !v9: FP branches cannot be preceded by another floating point
insn. Because there is currently no concept of pre-delay slots,
we can fix this only by always emitting a nop before a floating
point branch. */
string[0] = '\0';
if (! TARGET_V9)
strcpy (string, "nop\n\t");
strcat (string, branch);
}
else
switch (code)
{
case NE:
branch = "bne";
break;
case EQ:
branch = "be";
break;
case GE:
if (mode == CC_NOOVmode)
branch = "bpos";
else
branch = "bge";
break;
case GT:
branch = "bg";
break;
case LE:
branch = "ble";
break;
case LT:
if (mode == CC_NOOVmode)
branch = "bneg";
else
branch = "bl";
break;
case GEU:
branch = "bgeu";
break;
case GTU:
branch = "bgu";
break;
case LEU:
branch = "bleu";
break;
case LTU:
branch = "blu";
break;
{
switch (code)
{
case NE:
branch = "bne";
break;
case EQ:
branch = "be";
break;
case GE:
if (mode == CC_NOOVmode)
branch = "bpos";
else
branch = "bge";
break;
case GT:
branch = "bg";
break;
case LE:
branch = "ble";
break;
case LT:
if (mode == CC_NOOVmode)
branch = "bneg";
else
branch = "bl";
break;
case GEU:
branch = "bgeu";
break;
case GTU:
branch = "bgu";
break;
case LEU:
branch = "bleu";
break;
case LTU:
branch = "blu";
break;
default:
abort ();
}
strcpy (string, branch);
default:
abort ();
}
strcpy (string, branch);
}
spaces -= strlen (branch);
/* Now add the annulling, the label, and a possible noop. */