* i386.md (floatsisf_sse): Fix output template

	* i386.c (ix86_expand_fp_movcc)

	* reg-stack.c (emit_pop_insn): Handle complex modes.
	(move_for_stack_reg): Emit proper move mode.
	(subst_stack_regs_pat): Handle complex modes.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@41250 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 86a06dd..155b0da 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+Wed Apr 11 14:06:10 CEST 2001  Jan Hubicka  <jh@suse.cz>
+
+       * i386.md (floatsisf_sse): Fix output template
+       * i386.c (ix86_expand_fp_movcc)
+
+       * reg-stack.c (emit_pop_insn): Handle complex modes.
+       (move_for_stack_reg): Emit proper move mode.
+       (subst_stack_regs_pat): Handle complex modes.
+
 2001-04-11  Jakub Jelinek  <jakub@redhat.com>
 
        * cpplex.c (_cpp_lex_token): Only warn if -Wcomment.

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index a108a97..e6e76fe 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -6664,8 +6664,9 @@ ix86_expand_fp_movcc (operands)
       /* Similary try to manage result to be first operand of conditional
         move. We also don't support the NE comparison on SSE, so try to
         avoid it.  */
-      if (rtx_equal_p (operands[0], operands[3])
-         || GET_CODE (operands[1]) == NE)
+      if ((rtx_equal_p (operands[0], operands[3])
+          && (!TARGET_IEEE_FP || GET_CODE (operands[1]) != EQ))
+         || (GET_CODE (operands[1]) == NE && TARGET_IEEE_FP))
        {
          rtx tmp = operands[2];
          operands[2] = operands[3];

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 9b8a704..d3990ca 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -5117,7 +5117,7 @@
   [(set (match_operand:DF 0 "register_operand" "=Y")
        (float:DF (match_operand:DI 1 "nonimmediate_operand" "mr")))]
   "TARGET_SSE2"
-  "cvtsi2sd\\t{%1, %0|%0, %1}"
+  "cvtsi2sd{q}\\t{%1, %0|%0, %1}"
   [(set_attr "type" "sse")
    (set_attr "mode" "DF")
    (set_attr "fp_int_src" "true")])

diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index 6c20446..e31338a 100644 (file)
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -906,6 +906,23 @@ emit_pop_insn (insn, regstack, reg, where)
   rtx pop_insn, pop_rtx;
   int hard_regno;
 
+  /* For complex types take care to pop both halves.  These may survive in
+     CLOBBER and USE expressions.  */
+  if (COMPLEX_MODE_P (GET_MODE (reg)))
+    {
+      rtx reg1 = FP_MODE_REG (REGNO (reg), DFmode);
+      rtx reg2 = FP_MODE_REG (REGNO (reg) + 1, DFmode);
+
+      pop_insn = NULL_RTX;
+      if (get_hard_regnum (regstack, reg1) >= 0)
+         pop_insn = emit_pop_insn (insn, regstack, reg1, where);
+      if (get_hard_regnum (regstack, reg2) >= 0)
+         pop_insn = emit_pop_insn (insn, regstack, reg2, where);
+      if (!pop_insn)
+       abort ();
+      return pop_insn;
+    }
+
   hard_regno = get_hard_regnum (regstack, reg);
 
   if (hard_regno < FIRST_STACK_REG)
@@ -1129,9 +1146,12 @@ move_for_stack_reg (insn, regstack, pat)
             stack is not full, and then write the value to memory via
             a pop.  */
          rtx push_rtx, push_insn;
-         rtx top_stack_reg = FP_MODE_REG (FIRST_STACK_REG, XFmode);
+         rtx top_stack_reg = FP_MODE_REG (FIRST_STACK_REG, GET_MODE (src));
 
-         push_rtx = gen_movxf (top_stack_reg, top_stack_reg);
+         if (GET_MODE (src) == TFmode)
+           push_rtx = gen_movtf (top_stack_reg, top_stack_reg);
+         else
+           push_rtx = gen_movxf (top_stack_reg, top_stack_reg);
          push_insn = emit_insn_before (push_rtx, insn);
          REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_DEAD, top_stack_reg,
                                                REG_NOTES (insn));
@@ -1447,6 +1467,15 @@ subst_stack_regs_pat (insn, regstack, pat)
                    PATTERN (insn) = pat;
                    move_for_stack_reg (insn, regstack, pat);
                  }
+               if (! note && COMPLEX_MODE_P (GET_MODE (*dest))
+                   && get_hard_regnum (regstack, FP_MODE_REG (REGNO (*dest), DFmode)) == -1)
+                 {
+                   pat = gen_rtx_SET (VOIDmode,
+                                      FP_MODE_REG (REGNO (*dest) + 1, SFmode),
+                                      nan);
+                   PATTERN (insn) = pat;
+                   move_for_stack_reg (insn, regstack, pat);
+                 }
              }
          }
        break;