i965/nir: Resolve source modifiers on Gen8+ logic operations.

On Gen8+, AND/OR/XOR/NOT don't support the abs() source modifier, and
negate changes meaning to bitwise-not (~, not -).  This isn't what NIR
expects, so we should resolve the source modifers via a MOV.

+30 Piglits (fs-op-bit{and,or,xor}-not-abs-*).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 70098d8..ec77962 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -299,6 +299,7 @@ public:
                      int texunit);
    fs_reg emit_mcs_fetch(fs_reg coordinate, int components, fs_reg sampler);
    void emit_gen6_gather_wa(uint8_t wa, fs_reg dst);
+   void resolve_source_modifiers(fs_reg *src);
    fs_reg fix_math_operand(fs_reg src);
    fs_inst *emit_math(enum opcode op, fs_reg dst, fs_reg src0);
    fs_inst *emit_math(enum opcode op, fs_reg dst, fs_reg src0, fs_reg src1);