| commit | dcf14dfb704519846f396a376339ebdb93eaf049 | |
| author | Peter Maydell <peter.maydell@linaro.org> | |
| Mon, 9 Oct 2017 13:48:38 +0000 (9 14:48 +0100) | ||
| committer | Peter Maydell <peter.maydell@linaro.org> | |
| Thu, 12 Oct 2017 12:23:14 +0000 (12 13:23 +0100) | ||
| tree | edcffb780cb2992dd9c6a7da73035127066ce622 | treesnapshot (tar.gz zip) |
| parent | 5b8d7289e9e92a0d7bcecb93cd189e245fef10cd | commitdiff |
target/arm: Support some Thumb insns being always unconditional
A few Thumb instructions are always unconditional even inside an
IT block (as opposed to being UNPREDICTABLE if used inside an
IT block): BKPT, the v8M SG instruction, and the A profile
HLT (debug halt) instruction.
This means we need to suppress the jump-over-instruction-on-condfail
code generation (though the IT state still advances as usual and
subsequent insns in the IT block may be conditional).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 1507556919-24992-9-git-send-email-peter.maydell@linaro.org
A few Thumb instructions are always unconditional even inside an
IT block (as opposed to being UNPREDICTABLE if used inside an
IT block): BKPT, the v8M SG instruction, and the A profile
HLT (debug halt) instruction.
This means we need to suppress the jump-over-instruction-on-condfail
code generation (though the IT state still advances as usual and
subsequent insns in the IT block may be conditional).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 1507556919-24992-9-git-send-email-peter.maydell@linaro.org
| target/arm/translate.c | diffblobblamehistory |