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tcg/optimize: fix known-zero bits optimization
authorAurelien Jarno <aurelien@aurel32.net>
Tue, 3 Sep 2013 06:27:38 +0000 (08:27 +0200)
committerRichard Henderson <rth@twiddle.net>
Mon, 17 Feb 2014 16:12:28 +0000 (10:12 -0600)
commit3031244b01492528fd7b5e46b23eeb2124dc780a
treeb923a98d504020eead17850b8fb455ac093a7ce0tree | snapshot
parente46b225a3137e62c975c49aaae7bb5f9583cc428commit | diff
tcg/optimize: fix known-zero bits optimization

Known-zero bits optimization is a great idea that helps to generate more
optimized code. However the current implementation only works in very few
cases as the computed mask is not saved.

Fix this to make it really working.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg/optimize.c diff | blob | history
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