[PATCH] D33053: [PowerPC] Implement vec_xxpermdi builtin.

[Hiroshi Inoue via Phabricator via llvm-commits]

inouehrs added inline comments.


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Comment at: test/CodeGen/builtins-ppc-error.c:23
+void testXXPERMDI(void) {
+  int index = 5;
+  vec_xxpermdi(vsi); //expected-error {{too few arguments to function call, expected at least 3, have 1}}
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I am not sure we can assure that clang always do a constant propagation to resolve `index` as a compile time constant. But it seems that an existing test case above already assumes clang does it. 
IMO, `const unsigned index = 5;` is a little better.


https://reviews.llvm.org/D33053