Mesa (master): nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions
Ilia Mirkin
imirkin at kemper.freedesktop.org
Fri Jun 6 04:07:24 UTC 2014
Module: Mesa
Branch: master
Commit: 4674343e8f37f336b68bb04212c928f28af66958
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4674343e8f37f336b68bb04212c928f28af66958
Author: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de>
Date: Wed Jun 4 00:35:48 2014 +0200
nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions
Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de>
Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
index 58092f4..5254617 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp
@@ -528,9 +528,13 @@ ConstantFolding::expr(Instruction *i,
rshift = 32 - width;
lshift = 32 - width - offset;
}
+ if (i->subOp == NV50_IR_SUBOP_EXTBF_REV)
+ res.data.u32 = util_bitreverse(a->data.u32);
+ else
+ res.data.u32 = a->data.u32;
switch (i->dType) {
- case TYPE_S32: res.data.s32 = (a->data.s32 << lshift) >> rshift; break;
- case TYPE_U32: res.data.u32 = (a->data.u32 << lshift) >> rshift; break;
+ case TYPE_S32: res.data.s32 = (res.data.s32 << lshift) >> rshift; break;
+ case TYPE_U32: res.data.u32 = (res.data.u32 << lshift) >> rshift; break;
default:
return;
}
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