+2007-02-27 Uros Bizjak <ubizjak@gmail.com>
+
+ PR target/30970
+ * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal,
+ *movv2df_internal): Enable pattern only for valid operand
+ combinations.
+ * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers,
+ tie only 128bit modes. For MMX registers, tie only 64bit modes.
+
2007-02-27 Mike Stump <mrs@apple.com>
* config/darwin-crt3.c: Avoid compilation when compiling for a
/* If MODE2 is only appropriate for an SSE register, then tie with
any other mode acceptable to SSE registers. */
- if (GET_MODE_SIZE (mode2) >= 8
+ if (GET_MODE_SIZE (mode2) == 16
&& ix86_hard_regno_mode_ok (FIRST_SSE_REG, mode2))
- return ix86_hard_regno_mode_ok (FIRST_SSE_REG, mode1);
+ return (GET_MODE_SIZE (mode1) == 16
+ && ix86_hard_regno_mode_ok (FIRST_SSE_REG, mode1));
- /* If MODE2 is appropriate for an MMX (or SSE) register, then tie
+ /* If MODE2 is appropriate for an MMX register, then tie
with any other mode acceptable to MMX registers. */
if (GET_MODE_SIZE (mode2) == 8
&& ix86_hard_regno_mode_ok (FIRST_MMX_REG, mode2))
- return ix86_hard_regno_mode_ok (FIRST_MMX_REG, mode1);
+ return (GET_MODE_SIZE (mode2) == 8
+ && ix86_hard_regno_mode_ok (FIRST_MMX_REG, mode1));
return false;
}
(define_insn "*mov<mode>_internal"
[(set (match_operand:SSEMODEI 0 "nonimmediate_operand" "=x,x ,m")
(match_operand:SSEMODEI 1 "nonimmediate_or_sse_const_operand" "C ,xm,x"))]
- "TARGET_SSE && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
+ "TARGET_SSE
+ && (register_operand (operands[0], <MODE>mode)
+ || register_operand (operands[1], <MODE>mode))"
{
switch (which_alternative)
{
(define_insn "*movv4sf_internal"
[(set (match_operand:V4SF 0 "nonimmediate_operand" "=x,x,m")
(match_operand:V4SF 1 "nonimmediate_or_sse_const_operand" "C,xm,x"))]
- "TARGET_SSE"
+ "TARGET_SSE
+ && (register_operand (operands[0], V4SFmode)
+ || register_operand (operands[1], V4SFmode))"
{
switch (which_alternative)
{
(define_insn "*movv2df_internal"
[(set (match_operand:V2DF 0 "nonimmediate_operand" "=x,x,m")
(match_operand:V2DF 1 "nonimmediate_or_sse_const_operand" "C,xm,x"))]
- "TARGET_SSE && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
+ "TARGET_SSE
+ && (register_operand (operands[0], V2DFmode)
+ || register_operand (operands[1], V2DFmode))"
{
switch (which_alternative)
{
+2007-02-27 Uros Bizjak <ubizjak@gmail.com>
+
+ PR target/30970
+ * gcc.target/i386/gfortran.dg/pr30970.c: New test.
+
2007-02-27 Mark Mitchell <mark@codesourcery.com>
* lib/target-supports.exp (check_effective_target_init_priority):
--- /dev/null
+/* { dg-do compile { target i?86-*-* x86_64-*-* } }
+/* { dg-options "-msse2 -O2 -ftree-vectorize" } */
+
+#define N 256
+int b[N];
+
+void test()
+{
+ int i;
+
+ for (i = 0; i < N; i++)
+ b[i] = 0;
+}
+
+/* { dg-final { scan-assembler-times "pxor" 1 } } */