PR rtl-optimization/42691
* combine.c (try_combine): Set changed_i3_dest to 1 when I2 and I3 set
a pseudo to a constant and are merged, and adjust comments.
2010-01-15 Jing Yu <jingyu@google.com>
PR rtl-optimization/42691
* gcc.c-torture/execute/pr42691.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@155948
138bc75d-0d04-0410-961f-
82ee72b054a4
+2010-01-15 Jing Yu <jingyu@google.com>
+
+ PR rtl-optimization/42691
+ * combine.c (try_combine): Set changed_i3_dest to 1 when I2 and I3 set
+ a pseudo to a constant and are merged, and adjust comments.
+
2010-01-15 Eric Botcazou <ebotcazou@adacore.com>
* config/i386/sse.md (avx_vperm2f128<mode>3): Fix typo.
i2dest = SET_DEST (temp);
i2dest_killed = dead_or_set_p (i2, i2dest);
+ /* Replace the source in I2 with the new constant and make the
+ resulting insn the new pattern for I3. Then skip to where we
+ validate the pattern. Everything was set up above. */
SUBST (SET_SRC (temp),
immed_double_const (olo, ohi, GET_MODE (SET_DEST (temp))));
newpat = PATTERN (i2);
+
+ /* The dest of I3 has been replaced with the dest of I2. */
+ changed_i3_dest = 1;
goto validate_replacement;
}
}
}
}
- /* We come here when we are replacing a destination in I2 with the
- destination of I3. */
validate_replacement:
/* Note which hard regs this insn has as inputs. */
+2010-01-15 Jing Yu <jingyu@google.com>
+
+ PR rtl-optimization/42691
+ * gcc.c-torture/execute/pr42691.c: New.
+
2010-01-15 Richard Guenther <rguenther@suse.de>
PR middle-end/42739
--- /dev/null
+extern void abort (void);
+
+union _D_rep
+{
+ unsigned short rep[4];
+ double val;
+};
+
+int add(double* key, double* table)
+{
+ unsigned i = 0;
+ double* deletedEntry = 0;
+ while (1) {
+ double* entry = table + i;
+
+ if (*entry == *key)
+ break;
+
+ union _D_rep _D_inf = {{ 0, 0, 0, 0x7ff0 }};
+ if (*entry != _D_inf.val)
+ abort ();
+
+ union _D_rep _D_inf2 = {{ 0, 0, 0, 0x7ff0 }};
+ if (!_D_inf2.val)
+ deletedEntry = entry;
+
+ i++;
+ }
+ if (deletedEntry)
+ *deletedEntry = 0.0;
+ return 0;
+}
+
+int main ()
+{
+ union _D_rep infinit = {{ 0, 0, 0, 0x7ff0 }};
+ double table[2] = { infinit.val, 23 };
+ double key = 23;
+ int ret = add (&key, table);
+ return ret;
+}