i386.md (*fyl2x_sfxf3, [...]): Remove insn definition.

        * config/i386/i386.md (*fyl2x_sfxf3, *fyl2x_dfxf3): Remove insn
        definition.
        (log?f2, log10?f2, log2?f2): Reimplement expanders with
        float_truncate insn.
        (*fxtractsf3, *fxtractdf3): Remove insn definition.
        (logb?f2): Reimplement expanders with float_truncate insn.

From-SVN: r81432

2 files changed, 110 insertions, 98 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a80c5fa..bcf0c0e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2004-05-03  Uros Bizjak  <uros@kss-loka.si>
+
+	* config/i386/i386.md (*fyl2x_sfxf3, *fyl2x_dfxf3): Remove insn
+	definition.
+	(log?f2, log10?f2, log2?f2): Reimplement expanders with
+	float_truncate insn.
+	(*fxtractsf3, *fxtractdf3): Remove insn definition.
+	(logb?f2): Reimplement expanders with float_truncate insn.
+
 2004-05-03  Graham Stott  <graham.stott@btinternet.com>
 
 	PR 14718
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 75d153d..26132f1 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -15458,30 +15458,6 @@
   emit_move_insn (operands[3], CONST1_RTX (XFmode));  /* fld1 */
 })
 
-(define_insn "*fyl2x_sfxf3"
-  [(set (match_operand:SF 0 "register_operand" "=f")
-         (unspec:SF [(match_operand:SF 2 "register_operand" "0")
-		     (match_operand:XF 1 "register_operand" "u")]
-		    UNSPEC_FYL2X))
-   (clobber (match_scratch:SF 3 "=1"))]
-  "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
-   && flag_unsafe_math_optimizations"
-  "fyl2x"
-  [(set_attr "type" "fpspc")
-   (set_attr "mode" "SF")])
-
-(define_insn "*fyl2x_dfxf3"
-  [(set (match_operand:DF 0 "register_operand" "=f")
-         (unspec:DF [(match_operand:DF 2 "register_operand" "0")
-		     (match_operand:XF 1 "register_operand" "u")]
-		    UNSPEC_FYL2X))
-   (clobber (match_scratch:DF 3 "=1"))]
-  "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
-   && flag_unsafe_math_optimizations"
-  "fyl2x"
-  [(set_attr "type" "fpspc")
-   (set_attr "mode" "DF")])
-
 (define_insn "*fyl2x_xf3"
   [(set (match_operand:XF 0 "register_operand" "=f")
         (unspec:XF [(match_operand:XF 2 "register_operand" "0")
@@ -15495,33 +15471,47 @@
    (set_attr "mode" "XF")])
 
 (define_expand "logsf2"
-  [(parallel [(set (match_operand:SF 0 "register_operand" "")
-		   (unspec:SF [(match_operand:SF 1 "register_operand" "")
-			       (match_dup 2)] UNSPEC_FYL2X))
-	      (clobber (match_scratch:SF 3 ""))])]
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:SF 1 "register_operand" "")))
+   (parallel [(set (match_dup 4)
+		   (unspec:XF [(match_dup 2)
+			       (match_dup 3)] UNSPEC_FYL2X))
+	      (clobber (match_scratch:XF 5 ""))])
+   (set (match_operand:SF 0 "register_operand" "")
+	(float_truncate:SF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
    && flag_unsafe_math_optimizations"
 {
   rtx temp;
 
   operands[2] = gen_reg_rtx (XFmode);
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
+
   temp = standard_80387_constant_rtx (4); /* fldln2 */
-  emit_move_insn (operands[2], temp);
+  emit_move_insn (operands[3], temp);
 })
 
 (define_expand "logdf2"
-  [(parallel [(set (match_operand:DF 0 "register_operand" "")
-		   (unspec:DF [(match_operand:DF 1 "register_operand" "")
-			       (match_dup 2)] UNSPEC_FYL2X))
-	      (clobber (match_scratch:DF 3 ""))])]
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:DF 1 "register_operand" "")))
+   (parallel [(set (match_dup 4)
+		   (unspec:XF [(match_dup 2)
+			       (match_dup 3)] UNSPEC_FYL2X))
+	      (clobber (match_scratch:XF 5 ""))])
+   (set (match_operand:DF 0 "register_operand" "")
+	(float_truncate:DF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
    && flag_unsafe_math_optimizations"
 {
   rtx temp;
 
   operands[2] = gen_reg_rtx (XFmode);
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
+
   temp = standard_80387_constant_rtx (4); /* fldln2 */
-  emit_move_insn (operands[2], temp);
+  emit_move_insn (operands[3], temp);
 })
 
 (define_expand "logxf2"
@@ -15540,33 +15530,47 @@
 })
 
 (define_expand "log10sf2"
-  [(parallel [(set (match_operand:SF 0 "register_operand" "")
-		   (unspec:SF [(match_operand:SF 1 "register_operand" "")
-			       (match_dup 2)] UNSPEC_FYL2X))
-	      (clobber (match_scratch:SF 3 ""))])]
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:SF 1 "register_operand" "")))
+   (parallel [(set (match_dup 4)
+		   (unspec:XF [(match_dup 2)
+			       (match_dup 3)] UNSPEC_FYL2X))
+	      (clobber (match_scratch:XF 5 ""))])
+   (set (match_operand:SF 0 "register_operand" "")
+	(float_truncate:SF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
    && flag_unsafe_math_optimizations"
 {
   rtx temp;
 
   operands[2] = gen_reg_rtx (XFmode);
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
+
   temp = standard_80387_constant_rtx (3); /* fldlg2 */
-  emit_move_insn (operands[2], temp);
+  emit_move_insn (operands[3], temp);
 })
 
 (define_expand "log10df2"
-  [(parallel [(set (match_operand:DF 0 "register_operand" "")
-		   (unspec:DF [(match_operand:DF 1 "register_operand" "")
-			       (match_dup 2)] UNSPEC_FYL2X))
-	      (clobber (match_scratch:DF 3 ""))])]
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:DF 1 "register_operand" "")))
+   (parallel [(set (match_dup 4)
+		   (unspec:XF [(match_dup 2)
+			       (match_dup 3)] UNSPEC_FYL2X))
+	      (clobber (match_scratch:XF 5 ""))])
+   (set (match_operand:DF 0 "register_operand" "")
+	(float_truncate:DF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
    && flag_unsafe_math_optimizations"
 {
   rtx temp;
 
   operands[2] = gen_reg_rtx (XFmode);
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
+
   temp = standard_80387_constant_rtx (3); /* fldlg2 */
-  emit_move_insn (operands[2], temp);
+  emit_move_insn (operands[3], temp);
 })
 
 (define_expand "log10xf2"
@@ -15585,28 +15589,41 @@
 })
 
 (define_expand "log2sf2"
-  [(parallel [(set (match_operand:SF 0 "register_operand" "")
-		   (unspec:SF [(match_operand:SF 1 "register_operand" "")
-			       (match_dup 2)] UNSPEC_FYL2X))
-	      (clobber (match_scratch:SF 3 ""))])]
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:SF 1 "register_operand" "")))
+   (parallel [(set (match_dup 4)
+		   (unspec:XF [(match_dup 2)
+			       (match_dup 3)] UNSPEC_FYL2X))
+	      (clobber (match_scratch:XF 5 ""))])
+   (set (match_operand:SF 0 "register_operand" "")
+	(float_truncate:SF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
    && flag_unsafe_math_optimizations"
 {
   operands[2] = gen_reg_rtx (XFmode);
-  emit_move_insn (operands[2], CONST1_RTX (XFmode));  /* fld1 */
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
 
+  emit_move_insn (operands[3], CONST1_RTX (XFmode));  /* fld1 */
 })
 
 (define_expand "log2df2"
-  [(parallel [(set (match_operand:DF 0 "register_operand" "")
-		   (unspec:DF [(match_operand:DF 1 "register_operand" "")
-			       (match_dup 2)] UNSPEC_FYL2X))
-	      (clobber (match_scratch:DF 3 ""))])]
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:DF 1 "register_operand" "")))
+   (parallel [(set (match_dup 4)
+		   (unspec:XF [(match_dup 2)
+			       (match_dup 3)] UNSPEC_FYL2X))
+	      (clobber (match_scratch:XF 5 ""))])
+   (set (match_operand:DF 0 "register_operand" "")
+	(float_truncate:DF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387
    && flag_unsafe_math_optimizations"
 {
   operands[2] = gen_reg_rtx (XFmode);
-  emit_move_insn (operands[2], CONST1_RTX (XFmode));  /* fld1 */
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
+
+  emit_move_insn (operands[3], CONST1_RTX (XFmode));  /* fld1 */
 })
 
 (define_expand "log2xf2"
@@ -15621,66 +15638,52 @@
   emit_move_insn (operands[2], CONST1_RTX (XFmode));  /* fld1 */
 })
 
-(define_insn "*fxtractdf3"
-  [(set (match_operand:DF 0 "register_operand" "=f")
-	(unspec:DF [(match_operand:DF 2 "register_operand" "0")]
+(define_insn "*fxtractxf3"
+  [(set (match_operand:XF 0 "register_operand" "=f")
+	(unspec:XF [(match_operand:XF 2 "register_operand" "0")]
 		   UNSPEC_XTRACT_FRACT))
-   (set (match_operand:DF 1 "register_operand" "=u")
-        (unspec:DF [(match_dup 2)] UNSPEC_XTRACT_EXP))]
+   (set (match_operand:XF 1 "register_operand" "=u")
+        (unspec:XF [(match_dup 2)] UNSPEC_XTRACT_EXP))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387 
    && flag_unsafe_math_optimizations"
   "fxtract"
   [(set_attr "type" "fpspc")
-   (set_attr "mode" "DF")])
+   (set_attr "mode" "XF")])
 
-(define_expand "logbdf2"
-  [(parallel [(set (match_dup 2)
-		   (unspec:DF [(match_operand:DF 1 "register_operand" "")]
-			      UNSPEC_XTRACT_FRACT))
-	      (set (match_operand:DF 0 "register_operand" "")
-		   (unspec:DF [(match_dup 1)] UNSPEC_XTRACT_EXP))])]
+(define_expand "logbsf2"
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:SF 1 "register_operand" "")))
+   (parallel [(set (match_dup 3)
+		   (unspec:XF [(match_dup 2)] UNSPEC_XTRACT_FRACT))
+	      (set (match_dup 4)
+		   (unspec:XF [(match_dup 2)] UNSPEC_XTRACT_EXP))])
+   (set (match_operand:SF 0 "register_operand" "")
+	(float_truncate:SF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387 
    && flag_unsafe_math_optimizations"
 {
-  operands[2] = gen_reg_rtx (DFmode);
+  operands[2] = gen_reg_rtx (XFmode);
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
 })
 
-(define_insn "*fxtractsf3"
-  [(set (match_operand:SF 0 "register_operand" "=f")
-	(unspec:SF [(match_operand:SF 2 "register_operand" "0")]
-		   UNSPEC_XTRACT_FRACT))
-   (set (match_operand:SF 1 "register_operand" "=u")
-        (unspec:SF [(match_dup 2)] UNSPEC_XTRACT_EXP))]
-  "! TARGET_NO_FANCY_MATH_387 && TARGET_80387 
-   && flag_unsafe_math_optimizations"
-  "fxtract"
-  [(set_attr "type" "fpspc")
-   (set_attr "mode" "SF")])
-
-(define_expand "logbsf2"
-  [(parallel [(set (match_dup 2)
-		   (unspec:SF [(match_operand:SF 1 "register_operand" "")]
-			      UNSPEC_XTRACT_FRACT))
-	      (set (match_operand:SF 0 "register_operand" "")
-		   (unspec:SF [(match_dup 1)] UNSPEC_XTRACT_EXP))])]
+(define_expand "logbdf2"
+  [(set (match_dup 2)
+	(float_extend:XF (match_operand:DF 1 "register_operand" "")))
+   (parallel [(set (match_dup 3)
+		   (unspec:XF [(match_dup 2)] UNSPEC_XTRACT_FRACT))
+	      (set (match_dup 4)
+		   (unspec:XF [(match_dup 2)] UNSPEC_XTRACT_EXP))])
+   (set (match_operand:DF 0 "register_operand" "")
+	(float_truncate:DF (match_dup 4)))]
   "! TARGET_NO_FANCY_MATH_387 && TARGET_80387 
    && flag_unsafe_math_optimizations"
 {
-  operands[2] = gen_reg_rtx (SFmode);
+  operands[2] = gen_reg_rtx (XFmode);
+  operands[3] = gen_reg_rtx (XFmode);
+  operands[4] = gen_reg_rtx (XFmode);
 })
 
-(define_insn "*fxtractxf3"
-  [(set (match_operand:XF 0 "register_operand" "=f")
-	(unspec:XF [(match_operand:XF 2 "register_operand" "0")]
-		   UNSPEC_XTRACT_FRACT))
-   (set (match_operand:XF 1 "register_operand" "=u")
-        (unspec:XF [(match_dup 2)] UNSPEC_XTRACT_EXP))]
-  "! TARGET_NO_FANCY_MATH_387 && TARGET_80387 
-   && flag_unsafe_math_optimizations"
-  "fxtract"
-  [(set_attr "type" "fpspc")
-   (set_attr "mode" "XF")])
-
 (define_expand "logbxf2"
   [(parallel [(set (match_dup 2)
 		   (unspec:XF [(match_operand:XF 1 "register_operand" "")]