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r600/atomic: fix ATOMCAS instruction.

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This has 4 srcs.

This fixes:
KHR-GL45.shader_atomic_counter_ops_tests.ShaderAtomicCounterOpsExchangeTestCase

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2018-02-05 16:46:06 +10:00
parent 8bdad9fa1f
commit 4e3b43f180
1 changed files with 31 additions and 1 deletions
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32
src/gallium/drivers/r600/r600_shader.c
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@ -8680,6 +8680,33 @@ static int tgsi_atomic_op_gds(struct r600_shader_ctx *ctx)
if (r)
return r;
if (gds_op == FETCH_OP_GDS_CMP_XCHG_RET) {
if (inst->Src[3].Register.File == TGSI_FILE_IMMEDIATE) {
int value = (ctx->literals[4 * inst->Src[3].Register.Index + inst->Src[3].Register.SwizzleX]);
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = ALU_OP1_MOV;
alu.dst.sel = ctx->temp_reg;
alu.dst.chan = is_cm ? 2 : 1;
alu.src[0].sel = V_SQ_ALU_SRC_LITERAL;
alu.src[0].value = value;
alu.last = 1;
alu.dst.write = 1;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
} else {
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = ALU_OP1_MOV;
alu.dst.sel = ctx->temp_reg;
alu.dst.chan = is_cm ? 2 : 1;
r600_bytecode_src(&alu.src[0], &ctx->src[3], 0);
alu.last = 1;
alu.dst.write = 1;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
}
}
if (inst->Src[2].Register.File == TGSI_FILE_IMMEDIATE) {
int value = (ctx->literals[4 * inst->Src[2].Register.Index + inst->Src[2].Register.SwizzleX]);
int abs_value = abs(value);
@ -8719,7 +8746,10 @@ static int tgsi_atomic_op_gds(struct r600_shader_ctx *ctx)
gds.src_gpr2 = 0;
gds.src_sel_x = is_cm ? 0 : 4;
gds.src_sel_y = is_cm ? 1 : 0;
gds.src_sel_z = 7;
if (gds_op == FETCH_OP_GDS_CMP_XCHG_RET)
gds.src_sel_z = is_cm ? 2 : 1;
else
gds.src_sel_z = 7;
gds.dst_sel_x = 0;
gds.dst_sel_y = 7;
gds.dst_sel_z = 7;