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re PR c/22311 (internal compiler error: in c_common_type (-fshort-enums)) 

PR c/22311
	* c-typeck.c (build_binary_op): Use common_type wrapper on
	shortened types.
	(common_type): Update comment.

testsuite:
	* gcc.dg/pr22311-1.c : New test.

From-SVN: r102615
This commit is contained in:
Joseph Myers 2005-08-01 02:29:06 +01:00 committed by Joseph Myers
parent ad7574ac07
commit 5922c21599
4 changed files with 21 additions and 2 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2005-08-01 Joseph S. Myers <joseph@codesourcery.com>
PR c/22311
* c-typeck.c (build_binary_op): Use common_type wrapper on
shortened types.
(common_type): Update comment.
2005-07-31 Steven Bosscher <stevenb@suse.de>
PR target/23095

5
gcc/c-typeck.c
View File

@ -637,7 +637,8 @@ c_common_type (tree t1, tree t2)
return t2;
}
/* Wrapper around c_common_type that is used by c-common.c. ENUMERAL_TYPEs
/* Wrapper around c_common_type that is used by c-common.c and other
front end optimizations that remove promotions. ENUMERAL_TYPEs
are allowed here and are converted to their compatible integer types.
BOOLEAN_TYPEs are allowed here and return either boolean_type_node or
preferably a non-Boolean type as the common type. */
@ -7948,7 +7949,7 @@ build_binary_op (enum tree_code code, tree orig_op0, tree orig_op1,
&& (unsigned0 || !uns))
result_type
= c_common_signed_or_unsigned_type
(unsigned0, c_common_type (TREE_TYPE (arg0), TREE_TYPE (arg1)));
(unsigned0, common_type (TREE_TYPE (arg0), TREE_TYPE (arg1)));
else if (TREE_CODE (arg0) == INTEGER_CST
&& (unsigned1 || !uns)
&& (TYPE_PRECISION (TREE_TYPE (arg1))

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2005-08-01 Joseph S. Myers <joseph@codesourcery.com>
PR c/22311
* gcc.dg/pr22311-1.c : New test.
2005-07-31 Steven Bosscher <stevenb@suse.de>
PR target/23095

6
gcc/testsuite/gcc.dg/pr22311-1.c Normal file
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@ -0,0 +1,6 @@
/* Bug 22311: ICE with -fshort-enums on shortened operations. */
/* { dg-do compile } */
/* { dg-options "-fshort-enums" } */
typedef enum { A = 1 } E;
void f(E e, unsigned char c) { c |= e; }