From: Alexei Starovoitov
Date: Tue, 2 May 2017 19:58:14 -0700
> From: Yonghong Song
>
> With clang/llvm 4.0+, the test case is able to generate
> the following pattern:
>
> 440: (b7) r1 = 15
> 441: (05) goto pc+73
> 515: (79) r6 = *(u64 *)(r10 -152)
> 516: (bf) r7 = r10
> 517: (07) r7 += -
From: Yonghong Song
With clang/llvm 4.0+, the test case is able to generate
the following pattern:
440: (b7) r1 = 15
441: (05) goto pc+73
515: (79) r6 = *(u64 *)(r10 -152)
516: (bf) r7 = r10
517: (07) r7 += -112
518: (bf) r2 = r7
519: (0f) r2 += r1
520: (71) r1 = *(u8 *)(r8 +0)
521: (73) *(u
