* config/c4x/c4x.md (*absqi2_noclobber, *negqi2_noclobber,

	*one_cmplqi2_noclobber, *subqi3_noclobber, *andqi3_255_noclobber,
	*andqi3_65535_noclobber, *andnqi3_noclobber, *xorqi3_noclobber):
	Add new patterns and associated post-reload splitters.

From-SVN: r30029

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9b044e45722cef18e626c2d5f759174efae8ece2..2df5f692c523d4454f3d94545b77d990672ea18f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+Sat Oct 16 13:03:16 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+       * config/c4x/c4x.md (*absqi2_noclobber, *negqi2_noclobber,
+       *one_cmplqi2_noclobber, *subqi3_noclobber, *andqi3_255_noclobber,
+       *andqi3_65535_noclobber, *andnqi3_noclobber, *xorqi3_noclobber):
+       Add new patterns and associated post-reload splitters.
+
 Sat Oct 16 12:42:12 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
 
        * config/c4x/c4x.c (c4x_emit_libcall): Use ggc_alloc_string.

diff --git a/gcc/config/c4x/c4x.md b/gcc/config/c4x/c4x.md
index e1a39fa2ca5fed1c2a710bd32a01e589d8b4d677..e95fe384437459daf0b398ba1cf436eaf09ab6d0 100644 (file)
--- a/gcc/config/c4x/c4x.md
+++ b/gcc/config/c4x/c4x.md
@@ -1466,6 +1466,23 @@
   [(set_attr "type" "unarycc,unary")
    (set_attr "data" "int16,int16")])
 
+(define_insn "*absqi2_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c")
+        (abs:QI (match_operand:QI 1 "src_operand" "rIm")))]
+  ""
+  "absi\\t%1,%0"
+  [(set_attr "type" "unary")
+   (set_attr "data" "int16")])
+
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (abs:QI (match_operand:QI 1 "src_operand" "")))
+   (clobber (reg:CC_NOOV 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (abs:QI (match_dup 1)))]
+  "")
+
 (define_insn "*absqi2_test"
   [(set (reg:CC_NOOV 21)
         (compare:CC_NOOV (abs:QI (match_operand:QI 1 "src_operand" "rIm"))
@@ -1506,6 +1523,23 @@
   [(set_attr "type" "unarycc,unary")
    (set_attr "data" "int16,int16")])
 
+(define_insn "*negqi2_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c")
+        (neg:QI (match_operand:QI 1 "src_operand" "rIm")))]
+  ""
+  "negi\\t%1,%0"
+  [(set_attr "type" "unary")
+   (set_attr "data" "int16")])
+
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (neg:QI (match_operand:QI 1 "src_operand" "")))
+   (clobber (reg:CC_NOOV 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (neg:QI (match_dup 1)))]
+  "")
+
 (define_insn "*negqi2_test"
   [(set (reg:CC_NOOV 21)
         (compare:CC_NOOV (neg:QI (match_operand:QI 1 "src_operand" "rIm"))
@@ -1556,6 +1590,23 @@
   [(set_attr "type" "unarycc,unary")
    (set_attr "data" "uint16,uint16")])
 
+(define_insn "*one_cmplqi2_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c")
+        (not:QI (match_operand:QI 1 "lsrc_operand" "rLm")))]
+  ""
+  "not\\t%1,%0"
+  [(set_attr "type" "unary")
+   (set_attr "data" "uint16")])
+
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (not:QI (match_operand:QI 1 "lsrc_operand" "")))
+   (clobber (reg:CC 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (not:QI (match_dup 1)))]
+  "")
+
 (define_insn "*one_cmplqi2_test"
   [(set (reg:CC 21)
         (compare:CC (not:QI (match_operand:QI 1 "lsrc_operand" "rLm"))
@@ -1734,6 +1785,17 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binary,binary,binary")])
 ; Default to int16 data attr.
 
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (plus:QI (match_operand:QI 1 "src_operand" "")
+                 (match_operand:QI 2 "src_operand" "")))
+   (clobber (reg:CC_NOOV 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (plus:QI (match_dup 1)
+                 (match_dup 2)))]
+  "")
+
 (define_insn "*addqi3_test"
   [(set (reg:CC_NOOV 21)
         (compare:CC_NOOV (plus:QI (match_operand:QI 1 "src_operand" "%0,rR,rS<>")
@@ -1882,6 +1944,17 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binarycc,binary,binary,binary,binary")])
 ; Default to int16 data attr.
 
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (minus:QI (match_operand:QI 1 "src_operand" "")
+                  (match_operand:QI 2 "src_operand" "")))
+   (clobber (reg:CC_NOOV 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (minus:QI (match_dup 1)
+                 (match_dup 2)))]
+  "")
+
 (define_insn "*subqi3_test"
   [(set (reg:CC_NOOV 21)
         (compare:CC_NOOV (minus:QI (match_operand:QI 1 "src_operand" "0,rIm,rR,rS<>")
@@ -1929,6 +2002,19 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binarycc")])
 ; Default to int16 data attr.
 
+(define_insn "*subqi3_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c,c,c,?c")
+        (minus:QI (match_operand:QI 1 "src_operand" "0,rIm,rR,rS<>")
+                  (match_operand:QI 2 "src_operand" "rIm,0,JR,rS<>")))]
+  "valid_operands (MINUS, operands, QImode)"
+  "@
+   subi\\t%2,%0
+   subri\\t%1,%0
+   subi3\\t%2,%1,%0
+   subi3\\t%2,%1,%0"
+  [(set_attr "type" "binary,binary,binary,binary")])
+; Default to int16 data attr.
+
 (define_insn "*subqi3_carry_clobber"
   [(set (match_operand:QI 0 "reg_operand" "=d,d,d,?d,c,c,c,?c")
         (minus:QI (match_operand:QI 1 "src_operand" "0,rIm,rR,rS<>,0,rIm,rR,rS<>")
@@ -2295,7 +2381,15 @@
    (clobber (reg:CC 21))]
  "! TARGET_C3X"
  "lbu0\\t%1,%0"
-  [(set_attr "type" "unarycc")])
+  [(set_attr "type" "unarycc,unary")])
+
+(define_insn "*andqi3_255_noclobber"
+  [(set (match_operand:QI 0 "reg_operand" "=c")
+        (and:QI (match_operand:QI 1 "src_operand" "mr")
+                (const_int 255)))]
+ "! TARGET_C3X"
+ "lbu0\\t%1,%0"
+  [(set_attr "type" "unary")])
 
 
 (define_insn "*andqi3_65535_clobber"
@@ -2305,8 +2399,15 @@
    (clobber (reg:CC 21))]
  "! TARGET_C3X"
  "lhu0\\t%1,%0"
-  [(set_attr "type" "unarycc")])
+  [(set_attr "type" "unarycc,unary")])
 
+(define_insn "*andqi3_65535_noclobber"
+  [(set (match_operand:QI 0 "reg_operand" "=c")
+        (and:QI (match_operand:QI 1 "src_operand" "mr")
+                (const_int 65535)))]
+ "! TARGET_C3X"
+ "lhu0\\t%1,%0"
+  [(set_attr "type" "unary")])
 
 (define_insn "*andqi3_clobber"
   [(set (match_operand:QI 0 "reg_operand" "=d,d,d,?d,c,c,c,?c")
@@ -2326,6 +2427,30 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binarycc,binary,binary,binary,binary")
    (set_attr "data" "not_uint16,uint16,int16,uint16,not_uint16,uint16,int16,uint16")])
 
+(define_insn "*andqi3_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c,c,c,?c")
+        (and:QI (match_operand:QI 1 "src_operand" "%0,0,rR,rS<>")
+                (match_operand:QI 2 "tsrc_operand" "N,rLm,JR,rS<>")))]
+  "valid_operands (AND, operands, QImode)"
+  "@
+   andn\\t%N2,%0
+   and\\t%2,%0
+   and3\\t%2,%1,%0
+   and3\\t%2,%1,%0"
+  [(set_attr "type" "binary,binary,binary,binary")
+   (set_attr "data" "not_uint16,uint16,int16,uint16")])
+
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (and:QI (match_operand:QI 1 "src_operand" "")
+                (match_operand:QI 2 "tsrc_operand" "")))
+   (clobber (reg:CC 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (and:QI (match_dup 1)
+                (match_dup 2)))]
+  "")
+
 (define_insn "*andqi3_test"
   [(set (reg:CC 21)
         (compare:CC (and:QI (match_operand:QI 1 "src_operand" "%0,r,rR,rS<>")
@@ -2396,6 +2521,29 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binary,binary,binary")
    (set_attr "data" "uint16,int16,uint16,uint16,int16,uint16")])
 
+(define_insn "*andnqi3_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c,c,?c")
+        (and:QI (not:QI (match_operand:QI 2 "lsrc_operand" "rLm,JR,rS<>"))
+                (match_operand:QI 1 "src_operand" "0,rR,rS<>")))]
+  "valid_operands (AND, operands, QImode)"
+  "@
+   andn\\t%2,%0
+   andn3\\t%2,%1,%0
+   andn3\\t%2,%1,%0"
+  [(set_attr "type" "binary,binary,binary")
+   (set_attr "data" "uint16,int16,uint16")])
+
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (and:QI (not:QI (match_operand:QI 2 "lsrc_operand" ""))
+                (match_operand:QI 1 "src_operand" "")))
+   (clobber (reg:CC 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (and:QI (not:QI (match_dup 2))
+                (match_dup 1)))]
+  "")
+
 (define_insn "*andnqi3_test"
   [(set (reg:CC 21)
         (compare:CC (and:QI (not:QI (match_operand:QI 2 "lsrc_operand" "rLm,JR,rS<>"))
@@ -2453,6 +2601,17 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binary,binary,binary")
    (set_attr "data" "uint16,int16,uint16,uint16,int16,uint16")])
 
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (ior:QI (match_operand:QI 1 "src_operand" "")
+                (match_operand:QI 2 "lsrc_operand" "")))
+   (clobber (reg:CC 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (ior:QI (match_dup 1)
+                (match_dup 2)))]
+  "")
+
 (define_insn "*iorqi3_test"
   [(set (reg:CC 21)
         (compare:CC (ior:QI (match_operand:QI 1 "src_operand" "%0,rR,rS<>")
@@ -2538,6 +2697,29 @@
   [(set_attr "type" "binarycc,binarycc,binarycc,binary,binary,binary")
    (set_attr "data" "uint16,int16,uint16,uint16,int16,uint16")])
 
+(define_insn "*xorqi3_noclobber"
+  [(set (match_operand:QI 0 "std_reg_operand" "=c,c,?c")
+        (xor:QI (match_operand:QI 1 "src_operand" "%0,rR,rS<>")
+                (match_operand:QI 2 "lsrc_operand" "rLm,JR,rS<>")))]
+  "valid_operands (XOR, operands, QImode)"
+  "@
+   xor\\t%2,%0
+   xor3\\t%2,%1,%0
+   xor3\\t%2,%1,%0"
+  [(set_attr "type" "binary,binary,binary")
+   (set_attr "data" "uint16,int16,uint16")])
+
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (xor:QI (match_operand:QI 1 "src_operand" "")
+                (match_operand:QI 2 "lsrc_operand" "")))
+   (clobber (reg:CC 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (xor:QI (match_dup 1)
+                (match_dup 2)))]
+  "")
+
 (define_insn "*xorqi3_test"
   [(set (reg:CC 21)
         (compare:CC (xor:QI (match_operand:QI 1 "src_operand" "%0,rR,rS<>")
@@ -2633,6 +2815,16 @@
   [(set_attr "type" "binary,binary,binary")])
 ; Default to int16 data attr.
 
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+        (ashift:QI (match_operand:QI 1 "src_operand" "")
+                   (match_operand:QI 2 "src_operand" "")))
+   (clobber (reg:CC 21))]
+  "reload_completed"
+  [(set (match_dup 0)
+        (ashift:QI (match_dup 1)
+                   (match_dup 2)))]
+  "")
 
 ; This is only used by lshrhi3_reg where we need a LSH insn that will
 ; shift both ways.
@@ -3222,7 +3414,6 @@
  "#"
   [(set_attr "type" "multi")])
 
-
 ; This can generate invalid stack slot displacements
 (define_split
  [(set (match_operand:QF 0 "reg_operand" "=f")
@@ -3887,6 +4078,10 @@
 ; CONDITIONAL MOVES
 ;
 
+; ???  We should make these pattern fail if the src operand combination
+; is not valid.  Although reload will fix things up, it will introduce
+; extra load instructions that won't be hoisted out of a loop.
+
 (define_insn "*ldi_conditional"
   [(set (match_operand:QI 0 "reg_operand" "=r,r")
         (if_then_else:QI (match_operator 1 "comparison_operator"