diff options
| author | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2023-08-28 13:26:48 +0200 |
|---|---|---|
| committer | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2023-09-28 10:45:22 +0200 |
| commit | 23fa6f56b33f8fddf86ba4d027fb7d3081440cd9 (patch) | |
| tree | 0d690bf8611369c13256f6a363a4b69474776f3d /target/tricore | |
| parent | 5e0e06d9a2ce13d5b9832f0dddeaf5e2f4f70591 (diff) | |
target/tricore: Fix RCPW/RRPW_INSERT insns for width = 0
we would crash if width was 0 for these insns, as tcg_gen_deposit() is
undefined for that case. For TriCore, width = 0 is a mov from the src reg
to the dst reg, so we special case this here.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-ID: <20230828112651.522058-9-kbastian@mail.uni-paderborn.de>
Diffstat (limited to 'target/tricore')
| -rw-r--r-- | target/tricore/translate.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/target/tricore/translate.c b/target/tricore/translate.c index c9823ee32a..3f950ae33b 100644 --- a/target/tricore/translate.c +++ b/target/tricore/translate.c @@ -5310,8 +5310,11 @@ static void decode_rcpw_insert(DisasContext *ctx) } break; case OPC2_32_RCPW_INSERT: + /* tcg_gen_deposit_tl() does not handle the case of width = 0 */ + if (width == 0) { + tcg_gen_mov_tl(cpu_gpr_d[r2], cpu_gpr_d[r1]); /* if pos + width > 32 undefined result */ - if (pos + width <= 32) { + } else if (pos + width <= 32) { temp = tcg_constant_i32(const4); tcg_gen_deposit_tl(cpu_gpr_d[r2], cpu_gpr_d[r1], temp, pos, width); } @@ -6571,7 +6574,10 @@ static void decode_rrpw_extract_insert(DisasContext *ctx) break; case OPC2_32_RRPW_INSERT: - if (pos + width <= 32) { + /* tcg_gen_deposit_tl() does not handle the case of width = 0 */ + if (width == 0) { + tcg_gen_mov_tl(cpu_gpr_d[r3], cpu_gpr_d[r1]); + } else if (pos + width <= 32) { tcg_gen_deposit_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2], pos, width); } |