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, 67 deletions

diff --git a/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll b/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll
deleted file mode 100644
index 13cd8e5ad63..00000000000
--- a/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll
+++ /dev/null
@@ -1,67 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -simplifycfg -S | FileCheck %s
-
-@G = extern_weak global i32
-
-; PR3354
-; Do not merge bb1 into the entry block, it might trap.
-
-define i32 @admiral(i32 %a, i32 %b) {
-; CHECK-LABEL: @admiral(
-; CHECK-NEXT:    [[C:%.*]] = icmp sle i32 %a, %b
-; CHECK-NEXT:    br i1 [[C]], label %bb2, label %bb1
-; CHECK:       bb1:
-; CHECK-NEXT:    [[D:%.*]] = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0
-; CHECK-NEXT:    [[DOT:%.*]] = select i1 [[D]], i32 927, i32 42
-; CHECK-NEXT:    br label %bb2
-; CHECK:       bb2:
-; CHECK-NEXT:    [[MERGE:%.*]] = phi i32 [ 42, %0 ], [ [[DOT]], %bb1 ]
-; CHECK-NEXT:    ret i32 [[MERGE]]
-;
-  %c = icmp sle i32 %a, %b
-  br i1 %c, label %bb2, label %bb1
-bb1:
-  %d = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0
-  br i1 %d, label %bb6, label %bb2
-bb2:
-  ret i32 42
-bb6:
-  ret i32 927
-}
-
-define i32 @ackbar(i1 %c) {
-; CHECK-LABEL: @ackbar(
-; CHECK-NEXT:    br i1 %c, label %bb5, label %bb6
-; CHECK:       bb5:
-; CHECK-NEXT:    [[DOT:%.*]] = select i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), i32 42, i32 927
-; CHECK-NEXT:    br label %bb6
-; CHECK:       bb6:
-; CHECK-NEXT:    [[MERGE:%.*]] = phi i32 [ 42, %0 ], [ [[DOT]], %bb5 ]
-; CHECK-NEXT:    ret i32 [[MERGE]]
-;
-  br i1 %c, label %bb5, label %bb6
-bb5:
-  br i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), label %bb6, label %bb7
-bb6:
-  ret i32 42
-bb7:
-  ret i32 927
-}
-
-; FP ops don't trap by default, so this is safe to hoist.
-
-define i32 @tarp(i1 %c) {
-; CHECK-LABEL: @tarp(
-; CHECK-NEXT:  bb9:
-; CHECK-NEXT:    [[DOT:%.*]] = select i1 fcmp oeq (float fdiv (float 3.000000e+00, float sitofp (i32 ptrtoint (i32* @G to i32) to float)), float 1.000000e+00), i32 42, i32 927
-; CHECK-NEXT:    [[MERGE:%.*]] = select i1 %c, i32 [[DOT]], i32 42
-; CHECK-NEXT:    ret i32 [[MERGE]]
-;
-  br i1 %c, label %bb8, label %bb9
-bb8:
-  br i1 fcmp oeq (float fdiv (float 3.0, float sitofp (i32 ptrtoint (i32* @G to i32) to float)), float 1.0), label %bb9, label %bb10
-bb9:
-  ret i32 42
-bb10:
-  ret i32 927
-}