From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Thu, 6 Oct 2011 12:32:58 +0000 (+0200)
Subject: nvc0/ir: fix emission of cvt when register and type size differ
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7920c3c192bbccdc48823b02f00d2e1b39f1a9bf;p=mesa.git

nvc0/ir: fix emission of cvt when register and type size differ
---

diff --git a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
index bf597538bb3..6bcbd625600 100644
--- a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
+++ b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
@@ -785,8 +785,9 @@ CodeEmitterNVC0::emitCVT(Instruction *i)
 
       roundMode_C(i);
 
-      code[0] |= util_logbase2(i->def[0].getSize()) << 20;
-      code[0] |= util_logbase2(i->src[0].getSize()) << 23;
+      // cvt u16 f32 sets high bits to 0, so we don't have to use Value::Size()
+      code[0] |= util_logbase2(typeSizeof(i->dType)) << 20;
+      code[0] |= util_logbase2(typeSizeof(i->sType)) << 23;
 
       if (sat)
          code[0] |= 0x20;