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ac/nir: set the noalias attribute on input pointers

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This attribute is similar to the definition of restrict in
C99 and it might help LLVM.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2018-01-24 23:26:18 +01:00
parent 310d17fcf1
commit b453f38a47
1 changed files with 1 additions and 0 deletions
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src/amd/common/ac_nir_to_llvm.c
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@@ -326,6 +326,7 @@ create_llvm_function(LLVMContextRef ctx, LLVMModuleRef module,
if (args->array_params_mask & (1 << i)) {
LLVMValueRef P = LLVMGetParam(main_function, i);
ac_add_function_attr(ctx, main_function, i + 1, AC_FUNC_ATTR_BYVAL);
ac_add_function_attr(ctx, main_function, i + 1, AC_FUNC_ATTR_NOALIAS);
ac_add_attr_dereferenceable(P, UINT64_MAX);
}
else {