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| author | Jiong Wang <jiong.wang@arm.com> | 2015-08-19 22:55:28 +0000 |
|---|---|---|
| committer | Jiong Wang <jiwang@gcc.gnu.org> | 2015-08-19 22:55:28 +0000 |
| commit | b61a0d75fe479befe4bb92eb1447ed52b095599b (patch) | |
| tree | 5aa74ee7132df7a44f46653bee3dce7ee3bdf5b7 /gcc/go | |
| parent | e0f6cba004eb94ef9a06c68d09160d8601503085 (diff) | |
| download | gcc-b61a0d75fe479befe4bb92eb1447ed52b095599b.zip gcc-b61a0d75fe479befe4bb92eb1447ed52b095599b.tar.gz gcc-b61a0d75fe479befe4bb92eb1447ed52b095599b.tar.bz2 | |
[Patch][expand] Check gimple statement to improve LSHIFT_EXP expand
This patch improves LSHIFT_EXP expand if the shift operand comes from sign
extension and the shift result across word_mode_size boundary. See code
comments for details.
2015-08-19 Jiong.Wang <jiong.wang@arm.com>
gcc/
* expr.c (expand_expr_real_2): Check gimple statement during
LSHIFT_EXPR expand.
gcc/testsuite
* gcc.dg/wide_shift_64_1.c: New testcase.
* gcc.dg/wide_shift_128_1.c: Likewise.
* gcc.target/aarch64/ashlti3_1.c: Likewise.
From-SVN: r227018
Diffstat (limited to 'gcc/go')
0 files changed, 0 insertions, 0 deletions