[PATCH] [InstCombine][X86] Improved folding of calls to Intrinsic::x86_sse4a_insertqi.

[Quentin Colombet]

Hi Andrea,

LGTM.

Thanks,
-Quentin

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Comment at: lib/Transforms/InstCombine/InstCombineCalls.cpp:779
@@ +778,3 @@
+        unsigned Index = CIStart->getZExtValue();
+        // A value of zero in the field length is defined as length of 64.
+        unsigned Length = CIWidth->equalsInt(0) ? 64 : CIWidth->getZExtValue();
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Maybe add: per AMD64 manual, or something like that.

http://reviews.llvm.org/D6583