From 4674343e8f37f336b68bb04212c928f28af66958 Mon Sep 17 00:00:00 2001 From: Tobias Klausmann Date: Wed, 4 Jun 2014 00:35:48 +0200 Subject: [PATCH] nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions Signed-off-by: Tobias Klausmann Reviewed-by: Ilia Mirkin --- 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 58092f4658c..5254617d238 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; } -- 2.30.2