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nvc0/ir: fix overwriting of offset register with interpolateAtOffset

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Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Ilia Mirkin 2017-04-07 23:23:25 -04:00
parent bc68aa42bd
commit 57a744025a
1 changed files with 2 additions and 2 deletions
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4
src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
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@ -3015,8 +3015,8 @@ Converter::handleINTERP(Value *dst[4])
// and then convert to s32.
Value *offs[2];
for (c = 0; c < 2; c++) {
offs[c] = fetchSrc(1, c);
mkOp2(OP_MIN, TYPE_F32, offs[c], offs[c], loadImm(NULL, 0.4375f));
offs[c] = getScratch();
mkOp2(OP_MIN, TYPE_F32, offs[c], fetchSrc(1, c), loadImm(NULL, 0.4375f));
mkOp2(OP_MAX, TYPE_F32, offs[c], offs[c], loadImm(NULL, -0.5f));
mkOp2(OP_MUL, TYPE_F32, offs[c], offs[c], loadImm(NULL, 4096.0f));
mkCvt(OP_CVT, TYPE_S32, offs[c], TYPE_F32, offs[c]);