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Fix stack alignment

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This commit is contained in:
Dmitry Stogov 2022-05-18 14:42:03 +03:00
parent 438c7801cf
commit 2507dde1ad
1 changed files with 6 additions and 6 deletions
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12
ir_x86.dasc
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@ -1468,9 +1468,9 @@ static ir_reg ir_ref_spill_slot(ir_ctx *ctx, ir_ref ref)
offset = ctx->live_intervals[ctx->vregs[ref]]->stack_spill_pos;
IR_ASSERT(offset != -1);
if (ctx->flags & IR_USE_FRAME_POINTER) {
return offset - data->stack_frame_size;
return offset - (data->stack_frame_size - data->stack_frame_alignment);
} else {
return offset + data->call_stack_size + data->stack_frame_alignment;
return offset + data->call_stack_size;
}
}
@ -1529,10 +1529,10 @@ static void ir_emit_load(ir_ctx *ctx, ir_type type, ir_reg reg, ir_ref src)
offset = ctx->live_intervals[ctx->vregs[src]]->stack_spill_pos;
IR_ASSERT(offset != -1);
if (ctx->flags & IR_USE_FRAME_POINTER) {
offset = offset - data->stack_frame_size;
offset = offset - (data->stack_frame_size - data->stack_frame_alignment);
fp = IR_REG_RBP;
} else {
offset = offset + data->call_stack_size + data->stack_frame_alignment;
offset = offset + data->call_stack_size;
fp = IR_REG_RSP;
}
@ -1555,10 +1555,10 @@ static void ir_emit_store(ir_ctx *ctx, ir_type type, ir_ref dst, ir_reg reg)
offset = ctx->live_intervals[ctx->vregs[dst]]->stack_spill_pos;
IR_ASSERT(offset != -1);
if (ctx->flags & IR_USE_FRAME_POINTER) {
offset = offset - data->stack_frame_size;
offset = offset - (data->stack_frame_size - data->stack_frame_alignment);
fp = IR_REG_RBP;
} else {
offset = offset + data->call_stack_size + data->stack_frame_alignment;
offset = offset + data->call_stack_size;
fp = IR_REG_RSP;
}