[LLVMbugs] [Bug 17678] New: [Vectorizer] Implement non-interleaved stride vectorization

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17678

            Bug ID: 17678
           Summary: [Vectorizer] Implement non-interleaved stride
                    vectorization
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Loop Optimizer
          Assignee: unassignedbugs at nondot.org
          Reporter: renato.golin at linaro.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

After non-unit stride is implemented, make sure more complex cases, such as:

for (i..N/3) {
 a[3*i] = b[3*i] + K;
 a[3*i+1] = b[3*i+1] + K;
 a[3*i+2] = b[3*i+2] + K;
}

with the exact same operations on all "lanes" can be vectorized, thus not
requiring interleaving of loads/stores.

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