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mesa: when emitting an address load instruction, for

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indexed elements ensure we write to a single register.
This commit is contained in:
Alan Hourihane 2008-10-13 12:30:40 +01:00
parent ecac7996d4
commit 5bc8ebb12b
1 changed files with 5 additions and 1 deletions
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6
src/mesa/shader/slang/slang_emit.c
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@ -1579,13 +1579,17 @@ emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n)
else {
/* Variable array index */
struct prog_instruction *inst;
slang_ir_storage dstStore = *n->Store;
/* do codegen for array index expression */
emit(emitInfo, n->Children[1]);
inst = new_instruction(emitInfo, OPCODE_ARL);
storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask);
if (dstStore.Size > 4)
dstStore.Size = 4; /* only emit one instruction */
storage_to_dst_reg(&inst->DstReg, &dstStore, n->Writemask);
storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store);
inst->DstReg.File = PROGRAM_ADDRESS;