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[PATCH, committed] PPC64 bootstrap fix
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Tue, 04 Apr 2006 14:00:46 -0400
- Subject: [PATCH, committed] PPC64 bootstrap fix
The appended patch fixes the PPC64 bootstrap problems experienced
by Roger and Diego due to the additional GEN_INT calls.
Bootstrapped and regression tested on powerpc-ibm-aix5.2.0.0
David
* config/rs6000/rs6000.c (num_insns_constant_wide): Change
satisfies_constraint_[IL] to explicit tests on value.
Index: rs6000.c
===================================================================
--- rs6000.c (revision 112675)
+++ rs6000.c (working copy)
@@ -2004,11 +2004,12 @@
num_insns_constant_wide (HOST_WIDE_INT value)
{
/* signed constant loadable with {cal|addi} */
- if (satisfies_constraint_I (GEN_INT (value)))
+ if ((unsigned HOST_WIDE_INT) (value + 0x8000) < 0x10000)
return 1;
/* constant loadable with {cau|addis} */
- else if (satisfies_constraint_L (GEN_INT (value)))
+ else if ((value & 0xffff) == 0
+ && (value >> 31 == -1 || value >> 31 == 0))
return 1;
#if HOST_BITS_PER_WIDE_INT == 64