Revert r251291, "Loop Vectorizer - skipping "bitcast" before GEP"

It causes miscompilation of llvm/lib/ExecutionEngine/Interpreter/Execution.cpp.
See also PR25324.

llvm-svn: 251436

1 files changed, 0 insertions, 40 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll b/llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll
deleted file mode 100644
index ab2fd5e4e1c..00000000000
--- a/llvm/test/Transforms/LoopVectorize/gep_with_bitcast.ll
+++ /dev/null
@@ -1,40 +0,0 @@
-; RUN: opt -S -loop-vectorize -instcombine -force-vector-width=4  < %s | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
-
-; Vectorization of loop with bitcast between GEP and load
-; Simplified source code:
-;void foo (double** __restrict__  in, bool * __restrict__ res) {
-;
-;  for (int i = 0; i < 4096; ++i)
-;    res[i] = ((unsigned long long)in[i] == 0);
-;}
-
-; CHECK-LABEL: @foo
-; CHECK: vector.body
-; CHECK:  %0 = getelementptr inbounds double*, double** %in, i64 %index
-; CHECK:  %1 = bitcast double** %0 to <4 x i64>*
-; CHECK:  %wide.load = load <4 x i64>, <4 x i64>* %1, align 8
-; CHECK:  %2 = icmp eq <4 x i64> %wide.load, zeroinitializer
-; CHECK:  br i1
-
-define void @foo(double** noalias nocapture readonly %in, double** noalias nocapture readnone %out, i8* noalias nocapture %res) #0 {
-entry:
-  br label %for.body
-
-for.body:
-  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
-  %arrayidx = getelementptr inbounds double*, double** %in, i64 %indvars.iv
-  %tmp53 = bitcast double** %arrayidx to i64*
-  %tmp54 = load i64, i64* %tmp53, align 8
-  %cmp1 = icmp eq i64 %tmp54, 0
-  %arrayidx3 = getelementptr inbounds i8, i8* %res, i64 %indvars.iv
-  %frombool = zext i1 %cmp1 to i8
-  store i8 %frombool, i8* %arrayidx3, align 1
-  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
-  %exitcond = icmp eq i64 %indvars.iv.next, 4096
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:
-  ret void
-}
\ No newline at end of file