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authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2013-02-21 21:29:29 +0000
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2013-02-21 21:29:29 +0000
commitaf0907da3b8bbc439f651c43a59bfdaddf28e590 (patch)
treed1030e594d863fd4319e656fd16f5fbba7cd2f74 /libjava/classpath/java/lang/NullPointerException.java
parent4d5cf08ac5097410d0c851951b01cd2a7c154696 (diff)
downloadppe42-gcc-af0907da3b8bbc439f651c43a59bfdaddf28e590.tar.gz
ppe42-gcc-af0907da3b8bbc439f651c43a59bfdaddf28e590.zip
PR middle-end/56420
* expmed.c (EXACT_POWER_OF_2_OR_ZERO_P): Do subtraction in uhwi, to avoid signed wrapping. (expand_mult): Handle properly multiplication by ((dword_type) -1) << (BITS_PER_WORD - 1). Improve multiplication by ((dword_type) 1) << (BITS_PER_WORD - 1). Avoid undefined behavior in the compiler if coeff is HOST_WIDE_INT_MIN. (expand_divmod): Don't make ext_op1 static, change it's type to uhwi. Avoid undefined behavior in -INTVAL (op1). * gcc.dg/torture/pr56420.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@196215 138bc75d-0d04-0410-961f-82ee72b054a4
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