re PR middle-end/45567 (__builtin_popcountl ICEs with -ftree-ter)

	PR middle-end/45567
	* builtins.c (expand_builtin_interclass_mathfn, expand_builtin_cexpi,
	expand_builtin_powi): Remove subtarget argument, pass NULL_RTX instead.
	(expand_builtin): Adjust caller.
	(expand_builtin_unop): Only use subtarget if it has the right mode.

	* gcc.dg/pr45567.c: New test.

From-SVN: r164274

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bebaf35..f7a2fd8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2010-09-14  Jakub Jelinek  <jakub@redhat.com>
+
+       PR middle-end/45567
+       * builtins.c (expand_builtin_interclass_mathfn, expand_builtin_cexpi,
+       expand_builtin_powi): Remove subtarget argument, pass NULL_RTX instead.
+       (expand_builtin): Adjust caller.
+       (expand_builtin_unop): Only use subtarget if it has the right mode.
+
 2010-09-14  Tristan Gingold  <gingold@adacore.com>
 
        * configure.ac (plugins): Fix typos.

diff --git a/gcc/builtins.c b/gcc/builtins.c
index 7f55471..2dd6119 100644 (file)
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -106,9 +106,9 @@ static void expand_errno_check (tree, rtx);
 static rtx expand_builtin_mathfn (tree, rtx, rtx);
 static rtx expand_builtin_mathfn_2 (tree, rtx, rtx);
 static rtx expand_builtin_mathfn_3 (tree, rtx, rtx);
-static rtx expand_builtin_interclass_mathfn (tree, rtx, rtx);
+static rtx expand_builtin_interclass_mathfn (tree, rtx);
 static rtx expand_builtin_sincos (tree);
-static rtx expand_builtin_cexpi (tree, rtx, rtx);
+static rtx expand_builtin_cexpi (tree, rtx);
 static rtx expand_builtin_int_roundingfn (tree, rtx);
 static rtx expand_builtin_int_roundingfn_2 (tree, rtx);
 static rtx expand_builtin_next_arg (void);
@@ -2338,11 +2338,10 @@ interclass_mathfn_icode (tree arg, tree fndecl)
    isnan, etc).
    Return 0 if a normal call should be emitted rather than expanding the
    function in-line.  EXP is the expression that is a call to the builtin
-   function; if convenient, the result should be placed in TARGET.
-   SUBTARGET may be used as the target for computing one of EXP's operands.  */
+   function; if convenient, the result should be placed in TARGET.  */
 
 static rtx
-expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget)
+expand_builtin_interclass_mathfn (tree exp, rtx target)
 {
   enum insn_code icode = CODE_FOR_nothing;
   rtx op0;
@@ -2375,7 +2374,7 @@ expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget)
         side-effects more the once.  */
       CALL_EXPR_ARG (exp, 0) = arg = builtin_save_expr (arg);
 
-      op0 = expand_expr (arg, subtarget, VOIDmode, EXPAND_NORMAL);
+      op0 = expand_expr (arg, NULL_RTX, VOIDmode, EXPAND_NORMAL);
 
       if (mode != GET_MODE (op0))
        op0 = convert_to_mode (mode, op0, 0);
@@ -2442,11 +2441,10 @@ expand_builtin_sincos (tree exp)
 
 /* Expand a call to the internal cexpi builtin to the sincos math function.
    EXP is the expression that is a call to the builtin function; if convenient,
-   the result should be placed in TARGET.  SUBTARGET may be used as the target
-   for computing one of EXP's operands.  */
+   the result should be placed in TARGET.  */
 
 static rtx
-expand_builtin_cexpi (tree exp, rtx target, rtx subtarget)
+expand_builtin_cexpi (tree exp, rtx target)
 {
   tree fndecl = get_callee_fndecl (exp);
   tree arg, type;
@@ -2469,7 +2467,7 @@ expand_builtin_cexpi (tree exp, rtx target, rtx subtarget)
       op1 = gen_reg_rtx (mode);
       op2 = gen_reg_rtx (mode);
 
-      op0 = expand_expr (arg, subtarget, VOIDmode, EXPAND_NORMAL);
+      op0 = expand_expr (arg, NULL_RTX, VOIDmode, EXPAND_NORMAL);
 
       /* Compute into op1 and op2.  */
       expand_twoval_unop (sincos_optab, op0, op2, op1, 0);
@@ -3215,7 +3213,7 @@ expand_builtin_pow (tree exp, rtx target, rtx subtarget)
    function; if convenient, the result should be placed in TARGET.  */
 
 static rtx
-expand_builtin_powi (tree exp, rtx target, rtx subtarget)
+expand_builtin_powi (tree exp, rtx target)
 {
   tree arg0, arg1;
   rtx op0, op1;
@@ -3244,7 +3242,7 @@ expand_builtin_powi (tree exp, rtx target, rtx subtarget)
              || (optimize_insn_for_speed_p ()
                  && powi_cost (n) <= POWI_MAX_MULTS)))
        {
-         op0 = expand_expr (arg0, subtarget, VOIDmode, EXPAND_NORMAL);
+         op0 = expand_expr (arg0, NULL_RTX, VOIDmode, EXPAND_NORMAL);
          op0 = force_reg (mode, op0);
          return expand_powi (op0, mode, n);
        }
@@ -3258,7 +3256,7 @@ expand_builtin_powi (tree exp, rtx target, rtx subtarget)
   if (target == NULL_RTX)
     target = gen_reg_rtx (mode);
 
-  op0 = expand_expr (arg0, subtarget, mode, EXPAND_NORMAL);
+  op0 = expand_expr (arg0, NULL_RTX, mode, EXPAND_NORMAL);
   if (GET_MODE (op0) != mode)
     op0 = convert_to_mode (mode, op0, 0);
   op1 = expand_expr (arg1, NULL_RTX, mode2, EXPAND_NORMAL);
@@ -5000,7 +4998,10 @@ expand_builtin_unop (enum machine_mode target_mode, tree exp, rtx target,
     return NULL_RTX;
 
   /* Compute the argument.  */
-  op0 = expand_expr (CALL_EXPR_ARG (exp, 0), subtarget,
+  op0 = expand_expr (CALL_EXPR_ARG (exp, 0),
+                    (subtarget
+                     && (TYPE_MODE (TREE_TYPE (CALL_EXPR_ARG (exp, 0)))
+                         == GET_MODE (subtarget))) ? subtarget : NULL_RTX,
                     VOIDmode, EXPAND_NORMAL);
   /* Compute op, into TARGET if possible.
      Set TARGET to wherever the result comes back.  */
@@ -5835,7 +5836,7 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
     CASE_FLT_FN (BUILT_IN_FINITE):
     case BUILT_IN_ISFINITE:
     case BUILT_IN_ISNORMAL:
-      target = expand_builtin_interclass_mathfn (exp, target, subtarget);
+      target = expand_builtin_interclass_mathfn (exp, target);
       if (target)
        return target;
       break;
@@ -5865,7 +5866,7 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
       break;
 
     CASE_FLT_FN (BUILT_IN_POWI):
-      target = expand_builtin_powi (exp, target, subtarget);
+      target = expand_builtin_powi (exp, target);
       if (target)
        return target;
       break;
@@ -5887,7 +5888,7 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
       break;
 
     CASE_FLT_FN (BUILT_IN_CEXPI):
-      target = expand_builtin_cexpi (exp, target, subtarget);
+      target = expand_builtin_cexpi (exp, target);
       gcc_assert (target);
       return target;
 

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d9ebdd0..e7877fb 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2010-09-14  Jakub Jelinek  <jakub@redhat.com>
 
+       PR middle-end/45567
+       * gcc.dg/pr45567.c: New test.
+
        PR debug/45660
        * g++.dg/debug/pr45660.C: New test.
 

diff --git a/gcc/testsuite/gcc.dg/pr45567.c b/gcc/testsuite/gcc.dg/pr45567.c
new file mode 100644 (file)
index 0000000..5bf4644
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr45567.c
@@ -0,0 +1,9 @@
+/* PR middle-end/45567 */
+/* { dg-do compile } */
+/* { dg-options "-ftree-ter" } */
+
+unsigned
+foo (char c)
+{
+  return __builtin_popcountl ((unsigned long) c);
+}