diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 76656f55761..0b7feb79714 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -1958,12 +1958,14 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op) emit_asm(ir, TGSI_OPCODE_TRUNC, result_dst, op[0]); break; case ir_unop_bitcast_f2i: - result_src = op[0]; - result_src.type = GLSL_TYPE_INT; - break; case ir_unop_bitcast_f2u: - result_src = op[0]; - result_src.type = GLSL_TYPE_UINT; + /* Make sure we don't propagate the negate modifier to integer opcodes. */ + if (op[0].negate) + emit_asm(ir, TGSI_OPCODE_MOV, result_dst, op[0]); + else + result_src = op[0]; + result_src.type = ir->operation == ir_unop_bitcast_f2i ? GLSL_TYPE_INT : + GLSL_TYPE_UINT; break; case ir_unop_bitcast_i2f: case ir_unop_bitcast_u2f: |