From: Uros Bizjak <ubizjak@gmail.com>
Date: Sun, 13 Jun 2010 08:51:51 +0000 (+0200)
Subject: re PR target/44481 (__builtin_parity() causes ICE in trunc_int_for_mode())
X-Git-Tag: releases/gcc-4.3.6~453
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c367eb6e50b51fe9901999de74425e3503f0467;p=thirdparty%2Fgcc.git

re PR target/44481 (__builtin_parity() causes ICE in trunc_int_for_mode())

	PR target/44481
	* config/i386/i386.md (UNSPEC_PARITY): New unspec.
	(paritydi2_cmp): Use UNSPEC_PARITY unspec insted of parity RTX.
	(partiysi2_cmp): Ditto.
	(*partiyhi2_cmp): Ditto.
	(*parityqi2_cmp): Remove.

testsuite/ChangeLog:

	PR target/44481
	* gcc.target/i386/pr44481.c: New test.

From-SVN: r160672
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 26aadfa1c8d1..f831d4544574 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2010-06-13  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/44481
+	* config/i386/i386.md (UNSPEC_PARITY): New unspec.
+	(paritydi2_cmp): Use UNSPEC_PARITY unspec insted of parity RTX.
+	(partiysi2_cmp): Ditto.
+	(*partiyhi2_cmp): Ditto.
+	(*parityqi2_cmp): Remove.
+
 2010-06-08  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (*movsi_1) <TYPE_LEA>: Use %a modifier
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 990c4715bc05..a523bc9923f6 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -76,14 +76,15 @@
    (UNSPEC_TLSDESC		23)
 
    ; Other random patterns
+   (UNSPEC_EH_RETURN		29)
    (UNSPEC_SCAS			30)
    (UNSPEC_FNSTSW		31)
    (UNSPEC_SAHF			32)
-   (UNSPEC_FSTCW		33)
-   (UNSPEC_ADD_CARRY		34)
-   (UNSPEC_FLDCW		35)
-   (UNSPEC_REP			36)
-   (UNSPEC_EH_RETURN		37)
+   (UNSPEC_PARITY		33)
+   (UNSPEC_FSTCW		34)
+   (UNSPEC_ADD_CARRY		35)
+   (UNSPEC_FLDCW		36)
+   (UNSPEC_REP			37)
    (UNSPEC_LD_MPIC		38)	; load_macho_picbase
    (UNSPEC_TRUNC_NOOP		39)
 
@@ -15474,7 +15475,8 @@
 
 (define_insn_and_split "paritydi2_cmp"
   [(set (reg:CC FLAGS_REG)
-	(parity:CC (match_operand:DI 3 "register_operand" "0")))
+	(unspec:CC [(match_operand:DI 3 "register_operand" "0")]
+		   UNSPEC_PARITY))
    (clobber (match_scratch:DI 0 "=r"))
    (clobber (match_scratch:SI 1 "=&r"))
    (clobber (match_scratch:HI 2 "=Q"))]
@@ -15487,7 +15489,7 @@
       (clobber (reg:CC FLAGS_REG))])
    (parallel
      [(set (reg:CC FLAGS_REG)
-	   (parity:CC (match_dup 1)))
+	   (unspec:CC [(match_dup 1)] UNSPEC_PARITY))
       (clobber (match_dup 1))
       (clobber (match_dup 2))])]
 {
@@ -15523,7 +15525,8 @@
 
 (define_insn_and_split "paritysi2_cmp"
   [(set (reg:CC FLAGS_REG)
-	(parity:CC (match_operand:SI 2 "register_operand" "0")))
+	(unspec:CC [(match_operand:SI 2 "register_operand" "0")]
+		   UNSPEC_PARITY))
    (clobber (match_scratch:SI 0 "=r"))
    (clobber (match_scratch:HI 1 "=&Q"))]
   "! TARGET_POPCNT"
@@ -15535,7 +15538,7 @@
       (clobber (reg:CC FLAGS_REG))])
    (parallel
      [(set (reg:CC FLAGS_REG)
-	   (parity:CC (match_dup 1)))
+	   (unspec:CC [(match_dup 1)] UNSPEC_PARITY))
       (clobber (match_dup 1))])]
 {
   operands[3] = gen_lowpart (HImode, operands[2]);
@@ -15546,20 +15549,13 @@
 
 (define_insn "*parityhi2_cmp"
   [(set (reg:CC FLAGS_REG)
-	(parity:CC (match_operand:HI 1 "register_operand" "0")))
+	(unspec:CC [(match_operand:HI 1 "register_operand" "0")]
+		   UNSPEC_PARITY))
    (clobber (match_scratch:HI 0 "=Q"))]
   "! TARGET_POPCNT"
   "xor{b}\t{%h0, %b0|%b0, %h0}"
   [(set_attr "length" "2")
    (set_attr "mode" "HI")])
-
-(define_insn "*parityqi2_cmp"
-  [(set (reg:CC FLAGS_REG)
-	(parity:CC (match_operand:QI 0 "register_operand" "q")))]
-  "! TARGET_POPCNT"
-  "test{b}\t%0, %0"
-  [(set_attr "length" "2")
-   (set_attr "mode" "QI")])
 
 ;; Thread-local storage patterns for ELF.
 ;;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a646a165a3ea..44021f1cdd12 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-06-13  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/44481
+	* gcc.target/i386/pr44481.c: New test.
+
 2010-05-27  Jason Merrill  <jason@redhat.com>
 
 	PR c++/43555
diff --git a/gcc/testsuite/gcc.target/i386/pr44481.c b/gcc/testsuite/gcc.target/i386/pr44481.c
new file mode 100644
index 000000000000..701268b56560
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr44481.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+static inline unsigned
+parity (unsigned x)
+{
+  return (unsigned) __builtin_parity (x);
+}
+
+unsigned
+f (unsigned rpoly)
+{
+  return parity (rpoly & 1) ^ parity (rpoly & 6);
+}