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gallium/radeon: don't crash when getting out-of-bounds TEMP references

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Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
This commit is contained in:
Marek Olšák
2015-03-19 12:14:08 +01:00
parent 125574d1ef
commit ecc7f2ed91
1 changed files with 6 additions and 0 deletions
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6
src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
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@@ -191,6 +191,8 @@ emit_fetch(
break; break;
case TGSI_FILE_TEMPORARY: case TGSI_FILE_TEMPORARY:
if (reg->Register.Index >= ctx->temps_count)
return LLVMGetUndef(tgsi2llvmtype(bld_base, type));
if (uses_temp_indirect_addressing(bld_base)) { if (uses_temp_indirect_addressing(bld_base)) {
ptr = lp_get_temp_ptr_soa(bld, reg->Register.Index, swizzle); ptr = lp_get_temp_ptr_soa(bld, reg->Register.Index, swizzle);
break; break;
@@ -395,6 +397,8 @@ emit_store(
break; break;
case TGSI_FILE_TEMPORARY: case TGSI_FILE_TEMPORARY:
if (range.First + i >= ctx->temps_count)
continue;
if (uses_temp_indirect_addressing(bld_base)) if (uses_temp_indirect_addressing(bld_base))
temp_ptr = lp_get_temp_ptr_soa(bld, i + range.First, chan_index); temp_ptr = lp_get_temp_ptr_soa(bld, i + range.First, chan_index);
else else
@@ -416,6 +420,8 @@ emit_store(
break; break;
case TGSI_FILE_TEMPORARY: case TGSI_FILE_TEMPORARY:
if (reg->Register.Index >= ctx->temps_count)
continue;
if (uses_temp_indirect_addressing(bld_base)) { if (uses_temp_indirect_addressing(bld_base)) {
temp_ptr = NULL; temp_ptr = NULL;
break; break;