diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2024-02-12 20:38:18 +0000 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2024-02-14 21:17:26 +0300 |
| commit | 181e54871574bf5aa10b5a44fec94f198bc912ce (patch) | |
| tree | 043279ad3d8f49ef39e67636e50fe540e3caf18e /tcg | |
| parent | e5f105655c226262d9d7529dc8ee70402d9ef4ad (diff) | |
tcg/arm: Fix goto_tb for large translation blocks
Correct arithmetic for separating high and low
on a large negative number.
Cc: qemu-stable@nongnu.org
Fixes: 79ffece4447 ("tcg/arm: Implement direct branch for goto_tb")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1714
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit e41f1825b43796c3508ef309ed0b150ef89acc44)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/arm/tcg-target.c.inc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc index a9aa8aa91c..c9a47b7ea1 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -1736,9 +1736,9 @@ static void tcg_out_goto_tb(TCGContext *s, int which) * shifted immediate from pc. */ int h = -i_disp; - int l = h & 0xfff; + int l = -(h & 0xfff); - h = encode_imm_nofail(h - l); + h = encode_imm_nofail(h + l); tcg_out_dat_imm(s, COND_AL, ARITH_SUB, TCG_REG_R0, TCG_REG_PC, h); tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_R0, l); } |