diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-09-23 06:04:14 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-09-23 06:04:14 +0000 |
| commit | 54ff1f353af325c957254279a0c48d99b1dd2334 (patch) | |
| tree | 25aa3fd7b1ba9fdbd7f88065a488abc158ffdf71 /gcc/c-common.c | |
| parent | 84cdffff06965d5d79f131c557c35124801924cb (diff) | |
| download | gcc-54ff1f353af325c957254279a0c48d99b1dd2334.tar.gz | |
* c-common.c (c_common_signed_or_unsigned_type): Examine mode,
not precision.
* g++.dg/opt/enum1.C: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71677 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 39c6a5741b5..905ad9316c3 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -1982,32 +1982,37 @@ c_common_signed_or_unsigned_type (int unsignedp, tree type) || TREE_UNSIGNED (type) == unsignedp) return type; - if (TYPE_PRECISION (type) == TYPE_PRECISION (signed_char_type_node)) + /* Must check the mode of the types, not the precision. Enumeral types + in C++ have precision set to match their range, but may use a wider + mode to match an ABI. If we change modes, we may wind up with bad + conversions. */ + + if (TYPE_MODE (type) == TYPE_MODE (signed_char_type_node)) return unsignedp ? unsigned_char_type_node : signed_char_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (integer_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (integer_type_node)) return unsignedp ? unsigned_type_node : integer_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (short_integer_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (short_integer_type_node)) return unsignedp ? short_unsigned_type_node : short_integer_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (long_integer_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (long_integer_type_node)) return unsignedp ? long_unsigned_type_node : long_integer_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (long_long_integer_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (long_long_integer_type_node)) return (unsignedp ? long_long_unsigned_type_node : long_long_integer_type_node); - if (TYPE_PRECISION (type) == TYPE_PRECISION (widest_integer_literal_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (widest_integer_literal_type_node)) return (unsignedp ? widest_unsigned_literal_type_node : widest_integer_literal_type_node); #if HOST_BITS_PER_WIDE_INT >= 64 - if (TYPE_PRECISION (type) == TYPE_PRECISION (intTI_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (intTI_type_node)) return unsignedp ? unsigned_intTI_type_node : intTI_type_node; #endif - if (TYPE_PRECISION (type) == TYPE_PRECISION (intDI_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (intDI_type_node)) return unsignedp ? unsigned_intDI_type_node : intDI_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (intSI_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (intSI_type_node)) return unsignedp ? unsigned_intSI_type_node : intSI_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (intHI_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (intHI_type_node)) return unsignedp ? unsigned_intHI_type_node : intHI_type_node; - if (TYPE_PRECISION (type) == TYPE_PRECISION (intQI_type_node)) + if (TYPE_MODE (type) == TYPE_MODE (intQI_type_node)) return unsignedp ? unsigned_intQI_type_node : intQI_type_node; return type; |