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, 64 deletions

diff --git a/llvm/test/Transforms/MergeICmps/X86/alias-merge-blocks.ll b/llvm/test/Transforms/MergeICmps/X86/alias-merge-blocks.ll
deleted file mode 100644
index dfb369ca0f2..00000000000
--- a/llvm/test/Transforms/MergeICmps/X86/alias-merge-blocks.ll
+++ /dev/null
@@ -1,64 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -mtriple=x86_64-unknown-unknown -mergeicmps -S | FileCheck %s --check-prefix=X86
-
-%"struct.std::pair" = type { i32, i32, i32, i32 }
-
-; X86-LABEL: @opeq1(
-; X86-NEXT:  entry:
-; X86-NEXT:    [[PTR:%.*]] = alloca i32
-; X86-NEXT:    store i32 42, i32* [[PTR]]
-; X86-NEXT:    [[FIRST_I:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* [[A:%.*]], i64 0, i32 0
-; X86-NEXT:    [[FIRST1_I:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* [[B:%.*]], i64 0, i32 0
-; X86-NEXT:    [[CSTR:%.*]] = bitcast i32* [[FIRST_I]] to i8*
-; X86-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[FIRST1_I]] to i8*
-; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 16)
-; X86-NEXT:    [[TMP0:%.*]] = icmp eq i32 [[MEMCMP]], 0
-; X86-NEXT:    br label [[OPEQ1_EXIT:%.*]]
-; X86:       opeq1.exit:
-; X86-NEXT:    [[TMP1:%.*]] = phi i1 [ [[TMP0]], [[ENTRY:%.*]] ]
-; X86-NEXT:    ret i1 [[TMP1]]
-
-define zeroext i1 @opeq1(
-
-  %"struct.std::pair"* nocapture readonly dereferenceable(16) %a,
-  %"struct.std::pair"* nocapture readonly dereferenceable(16) %b) local_unnamed_addr #0 {
-
-entry:
-  %ptr = alloca i32
-  %first.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 0
-  %0 = load i32, i32* %first.i, align 4
-  %first1.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 0
-  %1 = load i32, i32* %first1.i, align 4
-  ; Does other work, has no interference, merge block
-  store i32 42, i32* %ptr
-  %cmp.i = icmp eq i32 %0, %1
-  br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit
-
-land.rhs.i:
-  %second.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 1
-  %2 = load i32, i32* %second.i, align 4
-  %second2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 1
-  %3 = load i32, i32* %second2.i, align 4
-  %cmp2.i = icmp eq i32 %2, %3
-  br i1 %cmp2.i, label %land.rhs.i.2, label %opeq1.exit
-
-land.rhs.i.2:
-  %third.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 2
-  %4 = load i32, i32* %third.i, align 4
-  %third2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 2
-  %5 = load i32, i32* %third2.i, align 4
-  %cmp3.i = icmp eq i32 %4, %5
-  br i1 %cmp3.i, label %land.rhs.i.3, label %opeq1.exit
-
-land.rhs.i.3:
-  %fourth.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 3
-  %6 = load i32, i32* %fourth.i, align 4
-  %fourth2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 3
-  %7 = load i32, i32* %fourth2.i, align 4
-  %cmp4.i = icmp eq i32 %6, %7
-  br label %opeq1.exit
-
-opeq1.exit:
-  %8 = phi i1 [ false, %entry ], [ false, %land.rhs.i] , [ false, %land.rhs.i.2 ], [ %cmp4.i, %land.rhs.i.3 ]
-  ret i1 %8
-}