+2002-03-15 Jakub Jelinek <jakub@redhat.com>
+
+ PR bootstrap/4128
+ * config/sparc/sparc.c (gen_v9_scc): Move early clobber test
+ before movrXX only, use reg_overlap_mentioned_p.
+ Only special case NE if just one insn can be generated.
+
2002-03-15 Jason Merrill <jason@redhat.com>
* varasm.c (assemble_variable): Call resolve_unique_section before
|| GET_MODE (operands[0]) == DImode))
return 0;
- /* Handle the case where operands[0] == sparc_compare_op0.
- We "early clobber" the result. */
- if (REGNO (operands[0]) == REGNO (sparc_compare_op0))
- {
- op0 = gen_reg_rtx (GET_MODE (sparc_compare_op0));
- emit_move_insn (op0, sparc_compare_op0);
- }
- else
- op0 = sparc_compare_op0;
- /* For consistency in the following. */
+ op0 = sparc_compare_op0;
op1 = sparc_compare_op1;
/* Try to use the movrCC insns. */
&& v9_regcmp_p (compare_code))
{
/* Special case for op0 != 0. This can be done with one instruction if
- operands[0] == sparc_compare_op0. We don't assume they are equal
- now though. */
+ operands[0] == sparc_compare_op0. */
if (compare_code == NE
&& GET_MODE (operands[0]) == DImode
- && GET_MODE (op0) == DImode)
+ && rtx_equal_p (op0, operands[0]))
{
- emit_insn (gen_rtx_SET (VOIDmode, operands[0], op0));
emit_insn (gen_rtx_SET (VOIDmode, operands[0],
gen_rtx_IF_THEN_ELSE (DImode,
gen_rtx_fmt_ee (compare_code, DImode,
return 1;
}
+ if (reg_overlap_mentioned_p (operands[0], op0))
+ {
+ /* Handle the case where operands[0] == sparc_compare_op0.
+ We "early clobber" the result. */
+ op0 = gen_reg_rtx (GET_MODE (sparc_compare_op0));
+ emit_move_insn (op0, sparc_compare_op0);
+ }
+
emit_insn (gen_rtx_SET (VOIDmode, operands[0], const0_rtx));
if (GET_MODE (op0) != DImode)
{
+2002-03-15 Jakub Jelinek <jakub@redhat.com>
+
+ * gcc.c-torture/compile/20020315-1.c: New test.
+
2002-03-15 Richard Earnshaw <rearnsha@arm.com>
* gcc.dg/weak-1.c: Fix scan tests.
--- /dev/null
+/* PR bootstrap/4128 */
+
+extern int bar (char *, char *, int, int);
+extern long baz (char *, char *, int, int);
+
+int sgt (char *a, char *b, int c, int d)
+{
+ return bar (a, b, c, d) > 0;
+}
+
+long dgt (char *a, char *b, int c, int d)
+{
+ return baz (a, b, c, d) > 0;
+}
+
+int sne (char *a, char *b, int c, int d)
+{
+ return bar (a, b, c, d) != 0;
+}
+
+long dne (char *a, char *b, int c, int d)
+{
+ return baz (a, b, c, d) != 0;
+}
+
+int seq (char *a, char *b, int c, int d)
+{
+ return bar (a, b, c, d) == 0;
+}
+
+long deq (char *a, char *b, int c, int d)
+{
+ return baz (a, b, c, d) == 0;
+}