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fold-const.c (fold): Use the original type conversion tree code rather than call fold_convert... 

* fold-const.c (fold) <NOP_EXPR>: Use the original type conversion
	tree code rather than call fold_convert, which doesn't specify a
	default floating point to integer conversion.

	* gcc.c-torture/compile/20040209-1.c: New test case.

From-SVN: r77535
This commit is contained in:
Roger Sayle 2004-02-09 14:00:36 +00:00
parent 12001e0ff9
commit b83c403610
4 changed files with 33 additions and 12 deletions
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16
gcc/ChangeLog
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@ -1,12 +1,20 @@
2004-02-09 Roger Sayle <roger@eyesopen.com>
* fold-const.c (fold) <NOP_EXPR>: Use the original type conversion
tree code rather than call fold_convert, which doesn't specify a
default floating point to integer conversion.
2004-02-08 Bernardo Innocenti <bernie@develer.com>
* config/m68k/m68k.c, config/m68k/m68k.md (SGS, SGS_CMP_ORDER): Remove
code to support SGS assembler. Reformat adjacent code where possible.
* config/m68k/m68k.c (switch_table_difference_label_flag): Remove definition.
* config/m68k/m68k.h (PRINT_OPERAND_PUNCT_VALID_P): Remove support for '%#'.
* config/m68k/m68k.c (switch_table_difference_label_flag): Remove
definition.
* config/m68k/m68k.h (PRINT_OPERAND_PUNCT_VALID_P): Remove support
for '%#'.
* config/m68k/linux.h, config/m68k/m68k.c,
* config/m68k/math-68881.h: Replace `%#' with `#' in inline asm macros and
asm_printf() format strings.
* config/m68k/math-68881.h: Replace `%#' with `#' in inline asm
macros and asm_printf() format strings.
* config/m68k/m68kelf.h (ASM_OUTPUT_CASE_END): Remove macro definition.
* config/m68k/linux.h: Update copyright.
* config/m68k/linux.h, config/m68k/m68k.c: Remove traling whitespace.

16
gcc/fold-const.c
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@ -5641,8 +5641,8 @@ fold (tree expr)
if (TYPE_MAIN_VARIANT (inside_type) == TYPE_MAIN_VARIANT (final_type)
&& ((inter_int && final_int) || (inter_float && final_float))
&& inter_prec >= final_prec)
return fold_convert (final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0));
return fold (build1 (code, final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0)));
/* Likewise, if the intermediate and final types are either both
float or both integer, we don't need the middle conversion if
@ -5657,16 +5657,16 @@ fold (tree expr)
&& ! (final_prec != GET_MODE_BITSIZE (TYPE_MODE (final_type))
&& TYPE_MODE (final_type) == TYPE_MODE (inter_type))
&& ! final_ptr)
return fold_convert (final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0));
return fold (build1 (code, final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0)));
/* If we have a sign-extension of a zero-extended value, we can
replace that by a single zero-extension. */
if (inside_int && inter_int && final_int
&& inside_prec < inter_prec && inter_prec < final_prec
&& inside_unsignedp && !inter_unsignedp)
return fold_convert (final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0));
return fold (build1 (code, final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0)));
/* Two conversions in a row are not needed unless:
- some conversion is floating-point (overstrict for now), or
@ -5690,8 +5690,8 @@ fold (tree expr)
&& ! (final_prec != GET_MODE_BITSIZE (TYPE_MODE (final_type))
&& TYPE_MODE (final_type) == TYPE_MODE (inter_type))
&& ! final_ptr)
return fold_convert (final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0));
return fold (build1 (code, final_type,
TREE_OPERAND (TREE_OPERAND (t, 0), 0)));
}
if (TREE_CODE (TREE_OPERAND (t, 0)) == MODIFY_EXPR

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2004-02-09 Roger Sayle <roger@eyesopen.com>
* gcc.c-torture/compile/20040209-1.c: New test case.
2004-02-08 Joseph S. Myers <jsm@polyomino.org.uk>
* gcc.dg/c90-init-1.c: Adjust expected error messages.

9
gcc/testsuite/gcc.c-torture/compile/20040209-1.c Normal file
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@ -0,0 +1,9 @@
/* The following code used to ICE in fold_convert. */
float ceilf(float);
int foo(float x)
{
return (double)ceilf(x);
}