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re PR rtl-optimization/19296 (Range check on short miscompiled at -O)
authorEric Botcazou <ebotcazou@libertysurf.fr>
Tue, 18 Jan 2005 08:26:21 +0000 (09:26 +0100)
committerEric Botcazou <ebotcazou@gcc.gnu.org>
Tue, 18 Jan 2005 08:26:21 +0000 (08:26 +0000)
commitf917ae96804310fc0e4b9ae88081b0ca553bc85b
treebb35b5440252ae54228e10dbf1fe2c62cf9156a4tree
parent06da3c24eb3039103c09ee18c996876d8f65e9d2commit | diff
re PR rtl-optimization/19296 (Range check on short miscompiled at -O)

PR rtl-optimization/19296
* combine.c (simplify_comparison): Rewrite the condition under
which a non-paradoxical SUBREG of a PLUS can be lifted when
compared against a constant.

From-SVN: r93818
gcc/ChangeLog diff | blob | blame | history
gcc/combine.c diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.dg/short-compare-1.c [new file with mode: 0644] blob
gcc/testsuite/gcc.dg/short-compare-2.c [new file with mode: 0644] blob
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