[PATCH] Fix checked arithmetic for i8 on X86

[Andrea Di Biagio]

Hi Keno,

I only have a small request (see below). Otherwise, the patch looks good to me. Thanks!

================
Comment at: test/CodeGen/X86/i8-umulo.ll:1-2
@@ +1,3 @@
+; RUN: llc -mcpu=generic -march=x86 < %s | FileCheck %s
+
+declare {i8, i1} @llvm.umul.with.overflow.i8(i8 %a, i8 %b)
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Please add a reference to the bugzilla.
Something like '; PR19858'

http://reviews.llvm.org/D3920