intel/compiler: support negate and abs of half float immediates

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

diff --git a/src/intel/compiler/brw_shader.cpp b/src/intel/compiler/brw_shader.cpp
index 284c2e8233c90eb58b63790a335ef80e0e2f1678..537defd05d9a6207adf90e25a1305bb6a125e5a8 100644 (file)
--- a/src/intel/compiler/brw_shader.cpp
+++ b/src/intel/compiler/brw_shader.cpp
@@ -605,7 +605,8 @@ brw_negate_immediate(enum brw_reg_type type, struct brw_reg *reg)
    case BRW_REGISTER_TYPE_V:
       assert(!"unimplemented: negate UV/V immediate");
    case BRW_REGISTER_TYPE_HF:
-      assert(!"unimplemented: negate HF immediate");
+      reg->ud ^= 0x80008000;
+      return true;
    case BRW_REGISTER_TYPE_NF:
       unreachable("no NF immediates");
    }
@@ -651,7 +652,8 @@ brw_abs_immediate(enum brw_reg_type type, struct brw_reg *reg)
    case BRW_REGISTER_TYPE_V:
       assert(!"unimplemented: abs V immediate");
    case BRW_REGISTER_TYPE_HF:
-      assert(!"unimplemented: abs HF immediate");
+      reg->ud &= ~0x80008000;
+      return true;
    case BRW_REGISTER_TYPE_NF:
       unreachable("no NF immediates");
    }