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vkd3d-shader/ir: Introduce VKD3DSIH_IMUL_LOW.

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It is meant to compute the lower word of an integer multiplication.
This commit is contained in:
Giovanni Mascellani
2025-06-10 16:57:57 +02:00
committed by Henri Verbeet
parent f3dec58423
commit 4a39db797b
Notes: Henri Verbeet 2025-06-24 16:31:58 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1583
5 changed files with 11 additions and 3 deletions
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6
libs/vkd3d-shader/dxil.c
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@@ -4516,7 +4516,7 @@ static enum vkd3d_shader_opcode map_binary_op(uint64_t code, const struct sm6_ty
is_valid = is_int && !is_bool;
break;
case BINOP_MUL:
op = is_int ? VKD3DSIH_UMUL : (is_double ? VKD3DSIH_DMUL : VKD3DSIH_MUL);
op = is_int ? VKD3DSIH_IMUL_LOW : (is_double ? VKD3DSIH_DMUL : VKD3DSIH_MUL);
is_valid = !is_bool;
break;
case BINOP_OR:
@@ -4603,7 +4603,7 @@ static void sm6_parser_emit_binop(struct sm6_parser *sm6, const struct dxil_reco
silence_warning = !(flags & ~(FP_NO_NAN | FP_NO_INF | FP_NO_SIGNED_ZEROS | FP_ALLOW_RECIPROCAL));
break;
case VKD3DSIH_IADD:
case VKD3DSIH_UMUL:
case VKD3DSIH_IMUL_LOW:
case VKD3DSIH_ISHL:
silence_warning = !(flags & ~(OB_NO_UNSIGNED_WRAP | OB_NO_SIGNED_WRAP));
break;
@@ -4637,7 +4637,7 @@ static void sm6_parser_emit_binop(struct sm6_parser *sm6, const struct dxil_reco
dst->type = a->type;
if (handler_idx == VKD3DSIH_UMUL || handler_idx == VKD3DSIH_UDIV || handler_idx == VKD3DSIH_IDIV)
if (handler_idx == VKD3DSIH_UDIV || handler_idx == VKD3DSIH_IDIV)
{
struct vkd3d_shader_dst_param *dst_params = instruction_dst_params_alloc(ins, 2, sm6);
unsigned int index = code != BINOP_UDIV && code != BINOP_SDIV;