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| author | Richard Henderson <rth@twiddle.net> | 2015-09-14 14:39:48 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-09-14 14:39:48 +0100 |
| commit | d3a77b42decd0cbfa62a5526e67d1d6d380c83a9 (patch) | |
| tree | 8843bb7b57d6377659e9426aeebee10cc6ce94dd /include | |
| parent | 9924e85829fe21b5f38a5d267c9aea44c5d478ac (diff) | |
| download | focaccia-qemu-d3a77b42decd0cbfa62a5526e67d1d6d380c83a9.tar.gz focaccia-qemu-d3a77b42decd0cbfa62a5526e67d1d6d380c83a9.zip | |
target-arm: Eliminate unnecessary zero-extend in disas_bitfield
For !SF, this initial ext32u can't be optimized away by the current TCG code generator. (It would require backward bit liveness propagation.) But since the range of bits for !SF are already constrained by unallocated_encoding, we'll never reference the high bits anyway. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-id: 1441909103-24666-10-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions