re PR target/52375 (internal compiler error: in extract_insn, at recog.c:2123 at...

	PR target/52375
	* config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
	s_register_operand in the test instead of REG_P.  Don't call
	gen_reg_rtx if it won't be used.

	* gcc.target/arm/pr52375.c: New test.
	* gcc.c-torture/compile/pr52375.c: New test.

From-SVN: r184603

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1a9e0f988cf43c7decdc235d8febd3091de5e660..0406ed24da0df50c8ab9adc1585692b737b82553 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2012-02-27  Jakub Jelinek  <jakub@redhat.com>
 
+       PR target/52375
+       * config/arm/neon.md (vashr<mode>3, vlshr<mode>3): Use
+       s_register_operand in the test instead of REG_P.  Don't call
+       gen_reg_rtx if it won't be used.
+
        PR tree-optimization/52376
        * ipa-split.c (split_function): Ignore CLOBBER stmts.
 

diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
index a6c891dafd6269210269e750e5d0a02a9eb9b7be..e0d6a0cc10c6b666c6b45554ccb19070ad647936 100644 (file)
--- a/gcc/config/arm/neon.md
+++ b/gcc/config/arm/neon.md
@@ -1064,9 +1064,9 @@
                        (match_operand:VDQIW 2 "imm_rshift_or_reg_neon" "")))]
   "TARGET_NEON"
 {
-  rtx neg = gen_reg_rtx (<MODE>mode);
-  if (REG_P (operands[2]))
+  if (s_register_operand (operands[2], <MODE>mode))
     {
+      rtx neg = gen_reg_rtx (<MODE>mode);
       emit_insn (gen_neg<mode>2 (neg, operands[2]));
       emit_insn (gen_ashl<mode>3_signed (operands[0], operands[1], neg));
     }
@@ -1081,9 +1081,9 @@
                        (match_operand:VDQIW 2 "imm_rshift_or_reg_neon" "")))]
   "TARGET_NEON"
 {
-  rtx neg = gen_reg_rtx (<MODE>mode);
-  if (REG_P (operands[2]))
+  if (s_register_operand (operands[2], <MODE>mode))
     {
+      rtx neg = gen_reg_rtx (<MODE>mode);
       emit_insn (gen_neg<mode>2 (neg, operands[2]));
       emit_insn (gen_ashl<mode>3_unsigned (operands[0], operands[1], neg));
     }

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0af8d11ad80ae6909400ee39afc5d0693b2c42d2..5c9f70cf3c2de7e12613bc5b9d9bd2d6bf7f0da1 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2012-02-27  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/52375
+       * gcc.target/arm/pr52375.c: New test.
+       * gcc.c-torture/compile/pr52375.c: New test.
+
 2012-02-27  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
        * gfortran.dg/typebound_operator_9.f03: Skip on SPU.

diff --git a/gcc/testsuite/gcc.c-torture/compile/pr52375.c b/gcc/testsuite/gcc.c-torture/compile/pr52375.c
new file mode 100644 (file)
index 0000000..e6877bb
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr52375.c
@@ -0,0 +1,12 @@
+/* PR target/52375 */
+
+struct C { int c, d; };
+
+unsigned
+foo (struct C *p)
+{
+  unsigned int b = 0, i;
+  for (i = 0; i < 64; i++)
+    b |= 0x80000000U >> p[i].c;
+  return b;
+}

diff --git a/gcc/testsuite/gcc.target/arm/pr52375.c b/gcc/testsuite/gcc.target/arm/pr52375.c
new file mode 100644 (file)
index 0000000..0405c66
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/pr52375.c
@@ -0,0 +1,15 @@
+/* PR target/52375 */
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-march=armv7-a -mfloat-abi=hard -mfpu=neon -O -ftree-vectorize" } */
+
+struct C { int c, d; };
+
+unsigned
+foo (struct C *p)
+{
+  unsigned int b = 0, i;
+  for (i = 0; i < 64; i++)
+    b |= 0x80000000U >> p[i].c;
+  return b;
+}