diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-10-16 19:10:42 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-10-22 16:32:28 -0700 |
| commit | d97f8f394184403beb655f5f077bef8ef83ffa3a (patch) | |
| tree | 5757f8f7f20d11e0139674a7bf841be25311e9d9 /tcg | |
| parent | bfefdbea9ee491842d4e61e54f97508c040913a8 (diff) | |
tcg: Optimize past conditional branches
We already register allocate through extended basic blocks,
optimize through extended basic blocks as well.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/optimize.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/tcg/optimize.c b/tcg/optimize.c index 3013eb04e6..2db5177c32 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -688,12 +688,14 @@ static void finish_folding(OptContext *ctx, TCGOp *op) int i, nb_oargs; /* - * For an opcode that ends a BB, reset all temp data. - * We do no cross-BB optimization. + * We only optimize extended basic blocks. If the opcode ends a BB + * and is not a conditional branch, reset all temp data. */ if (def->flags & TCG_OPF_BB_END) { - memset(&ctx->temps_used, 0, sizeof(ctx->temps_used)); ctx->prev_mb = NULL; + if (!(def->flags & TCG_OPF_COND_BRANCH)) { + memset(&ctx->temps_used, 0, sizeof(ctx->temps_used)); + } return; } |