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predicates.md ("shift_count_operand", [...]): Reject operands containing eliminable registers.

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2005-08-26  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/predicates.md ("shift_count_operand", "setmem_operand"):
	Reject operands containing eliminable registers.
	* testsuite/gcc.dg/20050825-1.c: New testcase.

From-SVN: r103515
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Andreas Krebbel 2005-08-26 06:45:09 +00:00 committed by Andreas Krebbel
parent 4e0d0e3367
commit db21e1d01a
3 changed files with 44 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-08-26 Andreas Krebbel <krebbel1@de.ibm.com>
* config/s390/predicates.md ("shift_count_operand", "setmem_operand"):
Reject operands containing eliminable registers.
* testsuite/gcc.dg/20050825-1.c: New testcase.
2005-08-24 Paolo Bonzini <bonzini@gnu.org>
Jan Hubicka <jh@suse.cz>

8
gcc/config/s390/predicates.md
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@ -107,6 +107,10 @@
if (op && GET_CODE (op) != REG)
return false;
if (op && REGNO (op) < FIRST_PSEUDO_REGISTER
&& !GENERAL_REGNO_P (REGNO (op)))
return false;
/* Unfortunately we have to reject constants that are invalid
for an address, or else reload will get confused. */
if (!DISP_IN_RANGE (offset))
@ -147,6 +151,10 @@
if (op && GET_CODE (op) != REG)
return false;
if (op && REGNO (op) < FIRST_PSEUDO_REGISTER
&& !GENERAL_REGNO_P (REGNO (op)))
return false;
/* Unfortunately we have to reject constants that are invalid
for an address, or else reload will get confused. */
if (!DISP_IN_RANGE (offset))

30
gcc/testsuite/gcc.dg/20050824-1.c Normal file
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@ -0,0 +1,30 @@
/* Make sure that the S/390 specific shift_count_operand
predicate work properly. */
/* { dg-do compile { target s390*-*-* } } */
/* { dg-options "-O3" } */
unsigned long long
f (unsigned long long a, unsigned long b)
{
asm ("" : : : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14");
return a << ((b + 3) & 63);
}
unsigned long long
g (unsigned long long a, char **b , int c, int d, int e, int f)
{
char buffer [4096];
*b = &buffer[0];
return a << ((unsigned long)&f & 63);
}
unsigned long long
h (unsigned long long a, int b, int c, int d, int e, int f)
{
return a << (((unsigned long)&f + 3));
}