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nouveau: codegen: LOAD: Always use component 0 when getting the address

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LOAD loads upto 4 components from the specified resource starting at
the passed in x value of the 2nd source operand, the y, z and w
components of the address should not be used.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Hans de Goede 2016-04-21 13:31:01 +02:00
parent 7d25ed7036
commit 1958397a58
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
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@ -2383,7 +2383,8 @@ Converter::handleLOAD(Value *dst0[4])
if (!dst0[c])
continue;
Value *off = fetchSrc(1, c);
// yzw are ignored for buffers
Value *off = fetchSrc(1, 0);
Symbol *sym;
if (tgsi.getSrc(1).getFile() == TGSI_FILE_IMMEDIATE) {
off = NULL;
@ -2522,6 +2523,7 @@ Converter::handleSTORE()
sym = makeSym(tgsi.getDst(0).getFile(), r, -1, c,
tgsi.getSrc(0).getValueU32(0, info) + 4 * c);
} else {
// yzw are ignored for buffers
off = fetchSrc(0, 0);
sym = makeSym(tgsi.getDst(0).getFile(), r, -1, c, 4 * c);
}