+2012-01-15 Uros Bizjak <ubizjak@gmail.com>
+
+ PR rtl-optimization/51821
+ * recog.c (peep2_find_free_register): Determine clobbered registers
+ from insn pattern.
+
2012-01-14 Denis Chertykov <chertykov@gmail.com>
PR target/50925
static int search_ofs;
enum reg_class cl;
HARD_REG_SET live;
+ df_ref *def_rec;
int i;
gcc_assert (from < MAX_INSNS_PER_PEEP2 + 1);
while (from != to)
{
- HARD_REG_SET this_live;
+ gcc_assert (peep2_insn_data[from].insn != NULL_RTX);
+
+ /* Don't use registers set or clobbered by the insn. */
+ for (def_rec = DF_INSN_DEFS (peep2_insn_data[from].insn);
+ *def_rec; def_rec++)
+ SET_HARD_REG_BIT (live, DF_REF_REGNO (*def_rec));
from = peep2_buf_position (from + 1);
- gcc_assert (peep2_insn_data[from].insn != NULL_RTX);
- REG_SET_TO_HARD_REG_SET (this_live, peep2_insn_data[from].live_before);
- IOR_HARD_REG_SET (live, this_live);
}
cl = (class_str[0] == 'r' ? GENERAL_REGS
+2012-01-15 Uros Bizjak <ubizjak@gmail.com>
+
+ PR rtl-optimization/51821
+ * gcc.dg/pr51821.c: New test.
+
2012-01-15 Andreas Schwab <schwab@linux-m68k.org>
* gcc.dg/torture/pr8081.c: Fix char signedness assumption.
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-O2 -msse" { target { i?86-*-* x86_64-*-* } } } */
+/* { dg-require-effective-target sse_runtime { target { i?86-*-* x86_64-*-* } } } */
+
+extern void abort (void);
+
+unsigned int __attribute__((noinline))
+test (int shift_size)
+{
+ unsigned long long res = ~0;
+
+ return res << shift_size;
+}
+
+int
+main ()
+{
+ int dst = 32;
+
+ if (test (dst) != 0)
+ abort ();
+
+ return 0;
+}