From: Jose Maria Casanova Crespo <jmcasan...@igalia.com>
16-bit immediates are replicated in each word of a 32-bit value
so we need to negate both.
---
src/intel/compiler/brw_shader.cpp | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/src/intel/compiler/brw_shader.cpp
b/src/intel/compiler/brw_shader.cpp
index 9cdf9fcb23d..c7edc60b63d 100644
--- a/src/intel/compiler/brw_shader.cpp
+++ b/src/intel/compiler/brw_shader.cpp
@@ -581,7 +581,8 @@ brw_negate_immediate(enum brw_reg_type type, struct brw_reg
*reg)
return true;
case BRW_REGISTER_TYPE_W:
case BRW_REGISTER_TYPE_UW:
- reg->d = -(int16_t)reg->ud;
+ case BRW_REGISTER_TYPE_HF:
+ reg->ud ^= 0x80008000;
return true;
case BRW_REGISTER_TYPE_F:
reg->f = -reg->f;
@@ -602,8 +603,6 @@ brw_negate_immediate(enum brw_reg_type type, struct brw_reg
*reg)
case BRW_REGISTER_TYPE_UV:
case BRW_REGISTER_TYPE_V:
assert(!"unimplemented: negate UV/V immediate");
- case BRW_REGISTER_TYPE_HF:
- assert(!"unimplemented: negate HF immediate");
case BRW_REGISTER_TYPE_NF:
unreachable("no NF immediates");
}
--
2.14.1
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