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[Qemu-commits] [qemu/qemu] 9bf383: Revert "tcg/i386: Rely on undefined/u
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[Qemu-commits] [qemu/qemu] 9bf383: Revert "tcg/i386: Rely on undefined/undocumented b... |
Date: |
Thu, 19 Jan 2017 10:00:05 -0800 |
Branch: refs/heads/master
Home: https://github.com/qemu/qemu
Commit: 9bf38308f603680ca9b8d9a71e954d4c8a982d0c
https://github.com/qemu/qemu/commit/9bf38308f603680ca9b8d9a71e954d4c8a982d0c
Author: Richard Henderson <address@hidden>
Date: 2017-01-17 (Tue, 17 Jan 2017)
Changed paths:
M tcg/i386/tcg-target.inc.c
Log Message:
-----------
Revert "tcg/i386: Rely on undefined/undocumented behaviour of BSF/BSR"
This reverts commit 4ac76910734209dab83ddd3795f08fc7889ef463.
This fixes
http://lists.nongnu.org/archive/html/qemu-devel/2017-01/msg03062.html
While I think we could get away with relying on the undocumented
behaviour, the tcg constraint system isn't powerful enough to
properly describe the required (non-)overlap conditions.
Reported-by: Eduardo Habkost <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Commit: 39f099ec9d6d420b6fe6f7f4f8ed80ae29c65ff2
https://github.com/qemu/qemu/commit/39f099ec9d6d420b6fe6f7f4f8ed80ae29c65ff2
Author: Richard Henderson <address@hidden>
Date: 2017-01-17 (Tue, 17 Jan 2017)
Changed paths:
M tcg/i386/tcg-target.inc.c
Log Message:
-----------
tcg/i386: Always use TZCNT when available
I think this is cleaner than sometimes using BSF.
Signed-off-by: Richard Henderson <address@hidden>
Commit: 5e59fb10ce5ef4cb3431ffead9cf1dd48080a641
https://github.com/qemu/qemu/commit/5e59fb10ce5ef4cb3431ffead9cf1dd48080a641
Author: Peter Maydell <address@hidden>
Date: 2017-01-19 (Thu, 19 Jan 2017)
Changed paths:
M tcg/i386/tcg-target.inc.c
Log Message:
-----------
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170117' into staging
tcg/i386 fixes
# gpg: Signature made Tue 17 Jan 2017 22:58:04 GMT
# gpg: using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <address@hidden>"
# gpg: aka "Richard Henderson <address@hidden>"
# gpg: aka "Richard Henderson <address@hidden>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B
* remotes/rth/tags/pull-tcg-20170117:
tcg/i386: Always use TZCNT when available
Revert "tcg/i386: Rely on undefined/undocumented behaviour of BSF/BSR"
Signed-off-by: Peter Maydell <address@hidden>
Compare: https://github.com/qemu/qemu/compare/ab4b92760498...5e59fb10ce5e
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