5 files changed, 9 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c
index b33976bb647..079a6eed496 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c
@@ -201,7 +201,7 @@ void lp_build_fetch_args(
 static int get_src_chan_idx(unsigned opcode,
                             int dst_chan_index)
 {
-   enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(opcode);
+   enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(opcode, 0);
    enum tgsi_opcode_type stype = tgsi_opcode_infer_src_type(opcode, 0);
 
    if (!tgsi_type_is_64bit(dtype) && !tgsi_type_is_64bit(stype))
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 435d1075aaa..e5d0293b8f9 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -1751,7 +1751,7 @@ emit_store_chan(
    struct lp_build_context *float_bld = &bld_base->base;
    struct lp_build_context *int_bld = &bld_base->int_bld;
    LLVMValueRef indirect_index = NULL;
-   enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(inst->Instruction.Opcode);
+   enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(inst->Instruction.Opcode, index);
 
    /*
     * Apply saturation.
@@ -1917,7 +1917,7 @@ emit_store(
    LLVMValueRef dst[4])
 
 {
-   enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(inst->Instruction.Opcode);
+   enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(inst->Instruction.Opcode, index);
 
    unsigned writemask = inst->Dst[index].Register.WriteMask;
    while (writemask) {
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c b/src/gallium/auxiliary/tgsi/tgsi_info.c
index 36be463dc84..62b41c031b3 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.c
@@ -312,7 +312,10 @@ tgsi_opcode_infer_src_type(uint opcode, uint src_idx)
  * infer the destination type of a TGSI opcode.
  */
 enum tgsi_opcode_type
-tgsi_opcode_infer_dst_type( uint opcode )
+tgsi_opcode_infer_dst_type( uint opcode, uint dst_idx )
 {
+   if (dst_idx == 1 && opcode == TGSI_OPCODE_DFRACEXP)
+      return TGSI_TYPE_SIGNED;
+
    return tgsi_opcode_infer_type(opcode);
 }
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.h b/src/gallium/auxiliary/tgsi/tgsi_info.h
index f3ef46fb4a8..8d32f4774be 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.h
@@ -114,7 +114,7 @@ enum tgsi_opcode_type
 tgsi_opcode_infer_src_type( uint opcode, uint src_idx );
 
 enum tgsi_opcode_type
-tgsi_opcode_infer_dst_type( uint opcode );
+tgsi_opcode_infer_dst_type( uint opcode, uint dst_idx );
 
 #if defined __cplusplus
 }
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
index f0c7803c997..109ec1b5a32 100644
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
@@ -890,7 +890,7 @@ void si_llvm_emit_store(struct lp_build_tgsi_context *bld_base,
 	LLVMBuilderRef builder = ctx->gallivm.builder;
 	LLVMValueRef temp_ptr, temp_ptr2 = NULL;
 	bool is_vec_store = false;
-	enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(inst->Instruction.Opcode);
+	enum tgsi_opcode_type dtype = tgsi_opcode_infer_dst_type(inst->Instruction.Opcode, index);
 
 	if (dst[0]) {
 		LLVMTypeKind k = LLVMGetTypeKind(LLVMTypeOf(dst[0]));