Temporarily Revert "Add basic loop fusion pass."

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

1 files changed, 0 insertions, 107 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/same-base-access.ll b/llvm/test/Transforms/LoopVectorize/same-base-access.ll
deleted file mode 100644
index 8a67efe30a6..00000000000
--- a/llvm/test/Transforms/LoopVectorize/same-base-access.ll
+++ /dev/null
@@ -1,107 +0,0 @@
-; RUN: opt < %s  -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S -enable-if-conversion | FileCheck %s
-
-target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
-
-; This is kernel11 from "LivermoreLoops". We can't vectorize it because we
-; access both x[k] and x[k-1].
-;
-; void kernel11(double *x, double *y, int n) {
-;   for ( int k=1 ; k<n ; k++ )
-;     x[k] = x[k-1] + y[k];
-; }
-
-; CHECK-LABEL: @kernel11(
-; CHECK-NOT: <4 x double>
-; CHECK: ret
-define i32 @kernel11(double* %x, double* %y, i32 %n) nounwind uwtable ssp {
-  %1 = alloca double*, align 8
-  %2 = alloca double*, align 8
-  %3 = alloca i32, align 4
-  %k = alloca i32, align 4
-  store double* %x, double** %1, align 8
-  store double* %y, double** %2, align 8
-  store i32 %n, i32* %3, align 4
-  store i32 1, i32* %k, align 4
-  br label %4
-
-; <label>:4                                       ; preds = %25, %0
-  %5 = load i32, i32* %k, align 4
-  %6 = load i32, i32* %3, align 4
-  %7 = icmp slt i32 %5, %6
-  br i1 %7, label %8, label %28
-
-; <label>:8                                       ; preds = %4
-  %9 = load i32, i32* %k, align 4
-  %10 = sub nsw i32 %9, 1
-  %11 = sext i32 %10 to i64
-  %12 = load double*, double** %1, align 8
-  %13 = getelementptr inbounds double, double* %12, i64 %11
-  %14 = load double, double* %13, align 8
-  %15 = load i32, i32* %k, align 4
-  %16 = sext i32 %15 to i64
-  %17 = load double*, double** %2, align 8
-  %18 = getelementptr inbounds double, double* %17, i64 %16
-  %19 = load double, double* %18, align 8
-  %20 = fadd double %14, %19
-  %21 = load i32, i32* %k, align 4
-  %22 = sext i32 %21 to i64
-  %23 = load double*, double** %1, align 8
-  %24 = getelementptr inbounds double, double* %23, i64 %22
-  store double %20, double* %24, align 8
-  br label %25
-
-; <label>:25                                      ; preds = %8
-  %26 = load i32, i32* %k, align 4
-  %27 = add nsw i32 %26, 1
-  store i32 %27, i32* %k, align 4
-  br label %4
-
-; <label>:28                                      ; preds = %4
-  ret i32 0
-}
-
-
-; A[i*7] is scalarized, and the different scalars can in theory wrap
-; around and overwrite other scalar elements. However we can still
-; vectorize because we can version the loop to avoid this case.
-; 
-; void foo(int *a) {
-;   for (int i=0; i<256; ++i) {
-;     int x = a[i*7];
-;     if (x>3)
-;       x = x*x+x*4;
-;     a[i*7] = x+3;
-;   }
-; }
-
-; CHECK-LABEL: @func2(
-; CHECK: <4 x i32>
-; CHECK: ret
-define i32 @func2(i32* nocapture %a) nounwind uwtable ssp {
-  br label %1
-
-; <label>:1                                       ; preds = %7, %0
-  %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %7 ]
-  %2 = mul nsw i64 %indvars.iv, 7
-  %3 = getelementptr inbounds i32, i32* %a, i64 %2
-  %4 = load i32, i32* %3, align 4
-  %5 = icmp sgt i32 %4, 3
-  br i1 %5, label %6, label %7
-
-; <label>:6                                       ; preds = %1
-  %tmp = add i32 %4, 4
-  %tmp1 = mul i32 %tmp, %4
-  br label %7
-
-; <label>:7                                       ; preds = %6, %1
-  %x.0 = phi i32 [ %tmp1, %6 ], [ %4, %1 ]
-  %8 = add nsw i32 %x.0, 3
-  store i32 %8, i32* %3, align 4
-  %indvars.iv.next = add i64 %indvars.iv, 1
-  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
-  %exitcond = icmp eq i32 %lftr.wideiv, 256
-  br i1 %exitcond, label %9, label %1
-
-; <label>:9                                       ; preds = %7
-  ret i32 0
-}