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Disable scheduling of related ADD_OV/SUB_OV/MUL_OV and OVERFLOW into different blocks

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This commit is contained in:
Dmitry Stogov 2023-06-06 23:55:40 +03:00
parent 18bdfb4203
commit 3f009c2d5a
1 changed files with 9 additions and 0 deletions
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9
ir_gcm.c
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@ -166,6 +166,11 @@ static void ir_gcm_schedule_late(ir_ctx *ctx, uint32_t *_blocks, ir_bitset visit
}
_blocks[ref] = b;
}
if (ctx->ir_base[ref + 1].op == IR_OVERFLOW) {
/* OVERFLOW is a projection and must be scheduled together with previous ADD/SUB/MUL_OV */
_blocks[ref + 1] = b;
}
}
}
@ -214,6 +219,10 @@ static void ir_gcm_schedule_rest(ir_ctx *ctx, uint32_t *_blocks, ir_bitset visit
IR_ASSERT(lca != 0 && "No Common Antecessor");
b = lca;
_blocks[ref] = b;
if (ctx->ir_base[ref + 1].op == IR_OVERFLOW) {
/* OVERFLOW is a projection and must be scheduled together with previous ADD/SUB/MUL_OV */
_blocks[ref + 1] = b;
}
}
}