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, 56 deletions

diff --git a/llvm/test/Transforms/IndVarSimplify/iv-fold.ll b/llvm/test/Transforms/IndVarSimplify/iv-fold.ll
deleted file mode 100644
index af8a33b30ea..00000000000
--- a/llvm/test/Transforms/IndVarSimplify/iv-fold.ll
+++ /dev/null
@@ -1,56 +0,0 @@
-; RUN: opt < %s -indvars -S | 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-n32:64"
-
-; Indvars should be able to fold IV increments into shr when low bits are zero.
-;
-; CHECK-LABEL: @foldIncShr(
-; CHECK: shr.1 = lshr i32 %0, 5
-define i32 @foldIncShr(i32* %bitmap, i32 %bit_addr, i32 %nbits) nounwind {
-entry:
-  br label %while.body
-
-while.body:
-  %0 = phi i32 [ 0, %entry ], [ %inc.2, %while.body ]
-  %shr = lshr i32 %0, 5
-  %arrayidx = getelementptr inbounds i32, i32* %bitmap, i32 %shr
-  %tmp6 = load i32, i32* %arrayidx, align 4
-  %inc.1 = add i32 %0, 1
-  %shr.1 = lshr i32 %inc.1, 5
-  %arrayidx.1 = getelementptr inbounds i32, i32* %bitmap, i32 %shr.1
-  %tmp6.1 = load i32, i32* %arrayidx.1, align 4
-  %inc.2 = add i32 %inc.1, 1
-  %exitcond.3 = icmp eq i32 %inc.2, 128
-  br i1 %exitcond.3, label %while.end, label %while.body
-
-while.end:
-  %r = add i32 %tmp6, %tmp6.1
-  ret i32 %r
-}
-
-; Invdars should not fold an increment into shr unless 2^shiftBits is
-; a multiple of the recurrence step.
-;
-; CHECK-LABEL: @noFoldIncShr(
-; CHECK: shr.1 = lshr i32 %inc.1, 5
-define i32 @noFoldIncShr(i32* %bitmap, i32 %bit_addr, i32 %nbits) nounwind {
-entry:
-  br label %while.body
-
-while.body:
-  %0 = phi i32 [ 0, %entry ], [ %inc.3, %while.body ]
-  %shr = lshr i32 %0, 5
-  %arrayidx = getelementptr inbounds i32, i32* %bitmap, i32 %shr
-  %tmp6 = load i32, i32* %arrayidx, align 4
-  %inc.1 = add i32 %0, 1
-  %shr.1 = lshr i32 %inc.1, 5
-  %arrayidx.1 = getelementptr inbounds i32, i32* %bitmap, i32 %shr.1
-  %tmp6.1 = load i32, i32* %arrayidx.1, align 4
-  %inc.3 = add i32 %inc.1, 2
-  %exitcond.3 = icmp eq i32 %inc.3, 96
-  br i1 %exitcond.3, label %while.end, label %while.body
-
-while.end:
-  %r = add i32 %tmp6, %tmp6.1
-  ret i32 %r
-}