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s390.c (s390_select_ccmode): Enable using CC of x + imm for higher immediates on z9-109 upwards.

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2012-12-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_select_ccmode): Enable using CC of
          x + imm for higher immediates on z9-109 upwards.

From-SVN: r194141
This commit is contained in:
Andreas Krebbel 2012-12-04 14:04:39 +00:00 • committed by Andreas Krebbel
parent 5005fe220a
commit 71ce1a3485
2 changed files with 9 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-12-04 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* config/s390/s390.c (s390_select_ccmode): Enable using CC of
x + imm for higher immediates on z9-109 upwards.
2012-12-04 Richard Earnshaw <rearnsha@arm.com>
* arm.opt (cirrus-fix-invalid-insns): Delete option.

5
gcc/config/s390/s390.c
View file

@ -691,7 +691,10 @@ s390_select_ccmode (enum rtx_code code, rtx op0, rtx op1)
int a, b; if ((b = a + c) > 0)
with c as a constant value: c < 0 -> CCAN and c >= 0 -> CCAP */
if (GET_CODE (op0) == PLUS && GET_CODE (XEXP (op0, 1)) == CONST_INT
&& CONST_OK_FOR_K (INTVAL (XEXP (op0, 1))))
&& (CONST_OK_FOR_K (INTVAL (XEXP (op0, 1)))
|| (CONST_OK_FOR_CONSTRAINT_P (INTVAL (XEXP (op0, 1)), 'O', "Os")
/* Avoid INT32_MIN on 32 bit. */
&& (!TARGET_ZARCH || INTVAL (XEXP (op0, 1)) != -0x7fffffff - 1))))
{
if (INTVAL (XEXP((op0), 1)) < 0)
return CCANmode;