diff options
| author | Matt Turner <[email protected]> | 2017-11-20 14:24:57 -0800 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2017-11-21 10:13:07 -0800 |
| commit | a05af1f7b8f82a38513bba31f9573cd62d82f18d (patch) | |
| tree | f815cd34f187acfeccf06fff7816877faaf01e17 /src | |
| parent | ce221cbbcf25238771b9a59e06ce4995e08c091e (diff) | |
i965/fs: Handle negating immediates on MADs when propagating saturates
MADs don't take immediate sources, but we allow them in the IR since it
simplifies a lot of things. I neglected to consider that case.
Fixes: 4009a9ead490 ("i965/fs: Allow saturate propagation to propagate
negations into MADs.")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103616
Reported-and-Tested-by: Ruslan Kabatsayev <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/intel/compiler/brw_fs_saturate_propagation.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/intel/compiler/brw_fs_saturate_propagation.cpp b/src/intel/compiler/brw_fs_saturate_propagation.cpp index 1c97a507d8c..d6cfa79a618 100644 --- a/src/intel/compiler/brw_fs_saturate_propagation.cpp +++ b/src/intel/compiler/brw_fs_saturate_propagation.cpp @@ -88,8 +88,14 @@ opt_saturate_propagation_local(fs_visitor *v, bblock_t *block) scan_inst->src[0].negate = !scan_inst->src[0].negate; inst->src[0].negate = false; } else if (scan_inst->opcode == BRW_OPCODE_MAD) { - scan_inst->src[0].negate = !scan_inst->src[0].negate; - scan_inst->src[1].negate = !scan_inst->src[1].negate; + for (int i = 0; i < 2; i++) { + if (scan_inst->src[i].file == IMM) { + brw_negate_immediate(scan_inst->src[i].type, + &scan_inst->src[i].as_brw_reg()); + } else { + scan_inst->src[i].negate = !scan_inst->src[i].negate; + } + } inst->src[0].negate = false; } else if (scan_inst->opcode == BRW_OPCODE_ADD) { if (scan_inst->src[1].file == IMM) { |