From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 5 Nov 2015 13:32:35 +0000 (+0100)
Subject: gm107/ir: Add support for double immediates
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b487b55f7d08c00f2efabc097c7138403528893f;p=mesa.git

gm107/ir: Add support for double immediates

Add support for encoding double immediates (up to 20 bits of precision)
into the generated gm107 machine-code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
index a327d572470..7e6ed842d54 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
@@ -310,9 +310,12 @@ CodeEmitterGM107::emitIMMD(int pos, int len, const ValueRef &ref)
    uint32_t val = imm->reg.data.u32;
 
    if (len == 19) {
-      if (isFloatType(insn->sType)) {
+      if (insn->sType == TYPE_F32 || insn->sType == TYPE_F16) {
          assert(!(val & 0x00000fff));
          val >>= 12;
+      } else if (insn->sType == TYPE_F64) {
+         assert(!(imm->reg.data.u64 & 0x00000fffffffffffULL));
+         val = imm->reg.data.u64 >> 44;
       }
       assert(!(val & 0xfff00000) || (val & 0xfff00000) == 0xfff00000);
       emitField( 56,   1, (val & 0x80000) >> 19);