diff options
| author | Marek Olšák <[email protected]> | 2016-07-03 14:33:55 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2016-07-12 11:58:53 +0200 |
| commit | ead7736821633bbbd8ae743a49d2ee87ebef0763 (patch) | |
| tree | e8c34c4677380eb066237b180949e5b14ad8032d /src | |
| parent | e30069630407e49008aaa160acb4c5684532b2c2 (diff) | |
glsl_to_tgsi: don't use the negate modifier in integer ops after bitcast
This bug is uncovered by glsl/lower_if_to_cond_assign.
I don't know if it can be reproduced in any other way.
Cc: <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>
Diffstat (limited to 'src')
| -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: |