i386.md (ashift RSP splitter): Remove splitter.

	* config/i386/i386.md (ashift RSP splitter): Remove splitter.
	(pro_epilogue_adjust_stack_di_2): Use "l" constraint for
	alternative 1 of operand 2.

From-SVN: r163414

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fc3654583d12cfe182a4972c3c8342320ac0d01d..3674805174866ce7fd1d5e830c029431149bedbc 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,8 +1,14 @@
+2010-08-20  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/i386.md (ashift RSP splitter): Remove splitter.
+       (pro_epilogue_adjust_stack_di_2): Use "l" constraint for
+       alternative 1 of operand 2.
+
 2010-08-20  Jakub Jelinek  <jakub@redhat.com>
            Paolo Bonzini  <bonzini@gnu.org>
 
        * simplify-rtx.c (simplify_unary_operation_1): Optimize
-       (sign_extend (zero_extend ()) and
+       (sign_extend (zero_extend (...)) and
        ({sign,zero}_extend (lshiftrt (ashift X (const_int I)) (const_int I))).
 
 2010-08-20  Jakub Jelinek  <jakub@redhat.com>
@@ -13,14 +19,13 @@
 
 2010-08-20  Iain Sandoe  <iains@gcc.gnu.org>
 
-       * config/rs6000/darwin.h (LIB_SPEC): New. Provide save/restFP by 
+       * config/rs6000/darwin.h (LIB_SPEC): New. Provide saveFP/restFP by
        linking libgcc.a.
-       
+
 2010-08-20  Jakub Jelinek  <jakub@redhat.com>
            Michael Matz  <matz@suse.de>
 
-       * tree-ssa-address.c (tree_mem_ref_addr): Convert offset to
-       sizetype.
+       * tree-ssa-address.c (tree_mem_ref_addr): Convert offset to sizetype.
 
 2010-08-20  Nathan Froyd  <froydnj@codesourcery.com>
 

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index e5de3b9ce00f42ff9ee2a04f2c2bc55510e36f15..4d4e4c9c99265b057f14b9e0c2138d28c1e1a4c6 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -5935,10 +5935,6 @@
        (const_string "*")))
    (set_attr "mode" "HI")])
 
-;; %%% After Dave's SUBREG_BYTE stuff goes in, re-enable incb %ah
-;; type optimizations enabled by define-splits.  This is not important
-;; for PII, and in fact harmful because of partial register stalls.
-
 (define_insn "*addhi_1_lea"
   [(set (match_operand:HI 0 "nonimmediate_operand" "=r,rm,r,r")
        (plus:HI (match_operand:HI 1 "nonimmediate_operand" "%0,0,r,r")
@@ -9637,26 +9633,6 @@
   operands[2] = gen_int_mode (1 << INTVAL (operands[2]), DImode);
 })
 
-;; Rare case of shifting RSP is handled by generating move and shift
-(define_split
-  [(set (match_operand 0 "register_operand" "")
-       (ashift (match_operand 1 "register_operand" "")
-                (match_operand:QI 2 "const_int_operand" "")))
-   (clobber (reg:CC FLAGS_REG))]
-  "reload_completed
-   && true_regnum (operands[0]) != true_regnum (operands[1])"
-  [(const_int 0)]
-{
-  rtx pat, clob;
-  emit_move_insn (operands[0], operands[1]);
-  pat = gen_rtx_SET (VOIDmode, operands[0],
-                    gen_rtx_ASHIFT (GET_MODE (operands[0]),
-                                    operands[0], operands[2]));
-  clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, FLAGS_REG));
-  emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, pat, clob)));
-  DONE;
-})
-
 ;; This pattern can't accept a variable shift count, since shifts by
 ;; zero don't affect the flags.  We assume that shifts by constant
 ;; zero are optimized away.
@@ -16411,7 +16387,7 @@
   [(set (match_operand:DI 0 "register_operand" "=r,r")
        (plus:DI (match_operand:DI 1 "register_operand" "0,r")
                 (match_operand:DI 3 "immediate_operand" "i,i")))
-   (use (match_operand:DI 2 "register_operand" "r,r"))
+   (use (match_operand:DI 2 "register_operand" "r,l"))
    (clobber (reg:CC FLAGS_REG))
    (clobber (mem:BLK (scratch)))]
   "TARGET_64BIT"