8 files changed, 47 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
index c71c1f111bd..e1c362be4a8 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
@@ -868,6 +868,7 @@ lp_set_default_actions(struct lp_build_tgsi_context * bld_base)
    bld_base->op_actions[TGSI_OPCODE_COS].fetch_args = scalar_unary_fetch_args;
    bld_base->op_actions[TGSI_OPCODE_EX2].fetch_args = scalar_unary_fetch_args;
    bld_base->op_actions[TGSI_OPCODE_IF].fetch_args = scalar_unary_fetch_args;
+   bld_base->op_actions[TGSI_OPCODE_UIF].fetch_args = scalar_unary_fetch_args;
    bld_base->op_actions[TGSI_OPCODE_KIL].fetch_args = kil_fetch_args;
    bld_base->op_actions[TGSI_OPCODE_KILP].fetch_args = kilp_fetch_args;
    bld_base->op_actions[TGSI_OPCODE_RCP].fetch_args = scalar_unary_fetch_args;
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c
index 98bce0eb269..223184d554a 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c
@@ -837,6 +837,7 @@ lp_emit_instruction_aos(
       return FALSE;
 
    case TGSI_OPCODE_IF:
+   case TGSI_OPCODE_UIF:
       return FALSE;
 
    case TGSI_OPCODE_BGNLOOP:
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_info.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_info.c
index 3c79abf7d52..b00aa094d38 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_info.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_info.c
@@ -389,6 +389,7 @@ analyse_instruction(struct analysis_context *ctx,
 
    switch (inst->Instruction.Opcode) {
    case TGSI_OPCODE_IF:
+   case TGSI_OPCODE_UIF:
    case TGSI_OPCODE_ELSE:
    case TGSI_OPCODE_ENDIF:
    case TGSI_OPCODE_BGNLOOP:
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 239530de729..73965360e7b 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -1732,6 +1732,7 @@ near_end_of_shader(struct lp_build_tgsi_soa_context *bld,
 	  opcode == TGSI_OPCODE_CAL ||
 	  opcode == TGSI_OPCODE_CALLNZ ||
 	  opcode == TGSI_OPCODE_IF ||
+          opcode == TGSI_OPCODE_UIF ||
 	  opcode == TGSI_OPCODE_BGNLOOP ||
 	  opcode == TGSI_OPCODE_SWITCH)
 	 return FALSE;
@@ -2395,6 +2396,21 @@ if_emit(
 }
 
 static void
+uif_emit(
+   const struct lp_build_tgsi_action * action,
+   struct lp_build_tgsi_context * bld_base,
+   struct lp_build_emit_data * emit_data)
+{
+   LLVMValueRef tmp;
+   struct lp_build_tgsi_soa_context * bld = lp_soa_context(bld_base);
+   struct lp_build_context *uint_bld = &bld_base->uint_bld;
+
+   tmp = lp_build_cmp(uint_bld, PIPE_FUNC_NOTEQUAL,
+                      emit_data->args[0], uint_bld->zero);
+   lp_exec_mask_cond_push(&bld->exec_mask, tmp);
+}
+
+static void
 bgnloop_emit(
    const struct lp_build_tgsi_action * action,
    struct lp_build_tgsi_context * bld_base,
@@ -2742,6 +2758,7 @@ lp_build_tgsi_soa(struct gallivm_state *gallivm,
    bld.bld_base.op_actions[TGSI_OPCODE_ENDLOOP].emit = endloop_emit;
    bld.bld_base.op_actions[TGSI_OPCODE_ENDSUB].emit = endsub_emit;
    bld.bld_base.op_actions[TGSI_OPCODE_IF].emit = if_emit;
+   bld.bld_base.op_actions[TGSI_OPCODE_UIF].emit = uif_emit;
    bld.bld_base.op_actions[TGSI_OPCODE_KIL].emit = kil_emit;
    bld.bld_base.op_actions[TGSI_OPCODE_KILP].emit = kilp_emit;
    bld.bld_base.op_actions[TGSI_OPCODE_NRM].emit = nrm_emit;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_dump.c b/src/gallium/auxiliary/tgsi/tgsi_dump.c
index 365665fa6f7..77b75b1e0bf 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_dump.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_dump.c
@@ -589,6 +589,7 @@ iter_instruction(
 
    switch (inst->Instruction.Opcode) {
    case TGSI_OPCODE_IF:
+   case TGSI_OPCODE_UIF:
    case TGSI_OPCODE_ELSE:
    case TGSI_OPCODE_BGNLOOP:
    case TGSI_OPCODE_ENDLOOP:
@@ -600,6 +601,7 @@ iter_instruction(
 
    /* update indentation */
    if (inst->Instruction.Opcode == TGSI_OPCODE_IF ||
+       inst->Instruction.Opcode == TGSI_OPCODE_UIF ||
        inst->Instruction.Opcode == TGSI_OPCODE_ELSE ||
        inst->Instruction.Opcode == TGSI_OPCODE_BGNLOOP) {
       ctx->indentation += indent_spaces;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 8579d8a57eb..05f749ed6c1 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -3982,6 +3982,28 @@ exec_instruction(
       mach->CondStack[mach->CondStackTop++] = mach->CondMask;
       FETCH( &r[0], 0, TGSI_CHAN_X );
       /* update CondMask */
+      if( ! r[0].f[0] ) {
+         mach->CondMask &= ~0x1;
+      }
+      if( ! r[0].f[1] ) {
+         mach->CondMask &= ~0x2;
+      }
+      if( ! r[0].f[2] ) {
+         mach->CondMask &= ~0x4;
+      }
+      if( ! r[0].f[3] ) {
+         mach->CondMask &= ~0x8;
+      }
+      UPDATE_EXEC_MASK(mach);
+      /* Todo: If CondMask==0, jump to ELSE */
+      break;
+
+   case TGSI_OPCODE_UIF:
+      /* push CondMask */
+      assert(mach->CondStackTop < TGSI_EXEC_MAX_COND_NESTING);
+      mach->CondStack[mach->CondStackTop++] = mach->CondMask;
+      IFETCH( &r[0], 0, TGSI_CHAN_X );
+      /* update CondMask */
       if( ! r[0].u[0] ) {
          mach->CondMask &= ~0x1;
       }
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c
index 716b16b7f9f..aee2d3081b2 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.c
@@ -112,7 +112,7 @@ static const struct tgsi_opcode_info opcode_info[TGSI_OPCODE_LAST] =
    { 1, 2, 1, 0, 0, 0, OTHR, "TXL", TGSI_OPCODE_TXL },
    { 0, 0, 0, 0, 0, 0, NONE, "BRK", TGSI_OPCODE_BRK },
    { 0, 1, 0, 1, 0, 1, NONE, "IF", TGSI_OPCODE_IF },
-   { 1, 1, 0, 0, 0, 1, NONE, "", 75 },      /* removed */
+   { 0, 1, 0, 1, 0, 1, NONE, "UIF", TGSI_OPCODE_UIF },
    { 0, 1, 0, 0, 0, 1, NONE, "", 76 },      /* removed */
    { 0, 0, 0, 1, 1, 1, NONE, "ELSE", TGSI_OPCODE_ELSE },
    { 0, 0, 0, 0, 1, 0, NONE, "ENDIF", TGSI_OPCODE_ENDIF },
@@ -297,6 +297,7 @@ tgsi_opcode_infer_src_type( uint opcode )
    case TGSI_OPCODE_TXF:
    case TGSI_OPCODE_SAMPLE_I:
    case TGSI_OPCODE_SAMPLE_I_MS:
+   case TGSI_OPCODE_UIF:
       return TGSI_TYPE_UNSIGNED;
    case TGSI_OPCODE_MOD:
    case TGSI_OPCODE_I2F:
diff --git a/src/gallium/auxiliary/tgsi/tgsi_opcode_tmp.h b/src/gallium/auxiliary/tgsi/tgsi_opcode_tmp.h
index b8519c64a2b..a6bcbb0f322 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_opcode_tmp.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_opcode_tmp.h
@@ -128,6 +128,7 @@ OP12(DP2)
 OP12_TEX(TXL)
 OP00(BRK)
 OP01_LBL(IF)
+OP01_LBL(UIF)
 OP00_LBL(ELSE)
 OP00(ENDIF)
 OP01(PUSHA)