+2003-06-04 Eric Botcazou <ebotcazou@libertysurf.fr>
+
+ PR optimization/11018
+ * config/sparc/sparc.c (sparc_v8plus_shift): Use which_alternative
+ consistently to decide whether the scratch register is really
+ required.
+
2003-06-04 Eric Botcazou <ebotcazou@libertysurf.fr>
PR optimization/10876
\f
/* Vectors to keep interesting information about registers where it can easily
- be got. We use to use the actual mode value as the bit number, but there
+ be got. We used to use the actual mode value as the bit number, but there
are more than 32 modes now. Instead we use two tables: one indexed by
hard register number, and one indexed by mode. */
return 0;
}
+/* Returns assembly code to perform a DImode shift using
+ a 64-bit global or out register on SPARC-V8+. */
char *
sparc_v8plus_shift (operands, insn, opcode)
rtx *operands;
{
static char asm_code[60];
- if (GET_CODE (operands[3]) == SCRATCH)
+ /* The scratch register is only required when the destination
+ register is not a 64-bit global or out register. */
+ if (which_alternative != 2)
operands[3] = operands[0];
+
if (GET_CODE (operands[1]) == CONST_INT)
{
output_asm_insn ("mov\t%1, %3", operands);
}
strcpy(asm_code, opcode);
+
if (which_alternative != 2)
return strcat (asm_code, "\t%0, %2, %L0\n\tsrlx\t%L0, 32, %H0");
else
--- /dev/null
+/* PR optimization/11018 */
+/* Originator: <partain@dcs.gla.ac.uk> */
+/* { dg-do run { target sparc*-*-* } } */
+/* { dg-options "-O2 -mcpu=ultrasparc" } */
+
+/* This used to fail on 32-bit Ultrasparc because
+ of broken DImode shift patterns. */
+
+extern void abort(void);
+
+typedef unsigned long long uint64_t;
+typedef unsigned int size_t;
+
+
+void to_octal (uint64_t value, char *where, size_t size)
+{
+ uint64_t v = value;
+ size_t i = size;
+
+ do
+ {
+ where[--i] = '0' + (v & ((1 << 3) - 1));
+ v >>= 3;
+ }
+ while (i);
+}
+
+
+int main (void)
+{
+ char buf[8];
+
+ to_octal(010644, buf, 6);
+
+ if (buf[1] != '1')
+ abort();
+
+ return 0;
+}