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, 204 deletions

diff --git a/llvm/test/Transforms/InstCombine/memchr.ll b/llvm/test/Transforms/InstCombine/memchr.ll
deleted file mode 100644
index 83073e20676..00000000000
--- a/llvm/test/Transforms/InstCombine/memchr.ll
+++ /dev/null
@@ -1,204 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; Test that the memchr library call simplifier works correctly.
-; RUN: opt < %s -instcombine -S | FileCheck %s
-
-target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
-
-@hello = constant [14 x i8] c"hello world\5Cn\00"
-@hellonull = constant [14 x i8] c"hello\00world\5Cn\00"
-@null = constant [1 x i8] zeroinitializer
-@newlines = constant [3 x i8] c"\0D\0A\00"
-@single = constant [2 x i8] c"\1F\00"
-@spaces = constant [4 x i8] c" \0D\0A\00"
-@negative = constant [3 x i8] c"\FF\FE\00"
-@chp = global i8* zeroinitializer
-
-declare i8* @memchr(i8*, i32, i32)
-
-define void @test1() {
-; CHECK-LABEL: @test1(
-; CHECK-NEXT:    store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 6), i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %str = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %str, i32 119, i32 14)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test2() {
-; CHECK-LABEL: @test2(
-; CHECK-NEXT:    store i8* null, i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %str = getelementptr [1 x i8], [1 x i8]* @null, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %str, i32 119, i32 1)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test3() {
-; CHECK-LABEL: @test3(
-; CHECK-NEXT:    store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 13), i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %src, i32 0, i32 14)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test4(i32 %chr) {
-; CHECK-LABEL: @test4(
-; CHECK-NEXT:    [[DST:%.*]] = call i8* @memchr(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 0), i32 [[CHR:%.*]], i32 14)
-; CHECK-NEXT:    store i8* [[DST]], i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %src, i32 %chr, i32 14)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test5() {
-; CHECK-LABEL: @test5(
-; CHECK-NEXT:    store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 13), i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %src, i32 65280, i32 14)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test6() {
-; CHECK-LABEL: @test6(
-; CHECK-NEXT:    store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 6), i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-; Overflow, but we still find the right thing.
-  %dst = call i8* @memchr(i8* %src, i32 119, i32 100)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test7() {
-; CHECK-LABEL: @test7(
-; CHECK-NEXT:    store i8* null, i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-; Overflow
-  %dst = call i8* @memchr(i8* %src, i32 120, i32 100)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test8() {
-; CHECK-LABEL: @test8(
-; CHECK-NEXT:    store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hellonull, i32 0, i32 6), i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %str = getelementptr [14 x i8], [14 x i8]* @hellonull, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %str, i32 119, i32 14)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test9() {
-; CHECK-LABEL: @test9(
-; CHECK-NEXT:    store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @hellonull, i32 0, i32 6), i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %str = getelementptr [14 x i8], [14 x i8]* @hellonull, i32 0, i32 2
-  %dst = call i8* @memchr(i8* %str, i32 119, i32 12)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-define void @test10() {
-; CHECK-LABEL: @test10(
-; CHECK-NEXT:    store i8* null, i8** @chp, align 4
-; CHECK-NEXT:    ret void
-;
-  %str = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
-  %dst = call i8* @memchr(i8* %str, i32 119, i32 6)
-  store i8* %dst, i8** @chp
-  ret void
-}
-
-; Check transformation memchr("\r\n", C, 2) != nullptr -> (C & 9216) != 0
-define i1 @test11(i32 %C) {
-; CHECK-LABEL: @test11(
-; CHECK-NEXT:    [[TMP1:%.*]] = trunc i32 [[C:%.*]] to i16
-; CHECK-NEXT:    [[TMP2:%.*]] = and i16 [[TMP1]], 255
-; CHECK-NEXT:    [[MEMCHR_BOUNDS:%.*]] = icmp ult i16 [[TMP2]], 16
-; CHECK-NEXT:    [[TMP3:%.*]] = shl i16 1, [[TMP2]]
-; CHECK-NEXT:    [[TMP4:%.*]] = and i16 [[TMP3]], 9216
-; CHECK-NEXT:    [[MEMCHR_BITS:%.*]] = icmp ne i16 [[TMP4]], 0
-; CHECK-NEXT:    [[MEMCHR:%.*]] = and i1 [[MEMCHR_BOUNDS]], [[MEMCHR_BITS]]
-; CHECK-NEXT:    ret i1 [[MEMCHR]]
-;
-  %dst = call i8* @memchr(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @newlines, i64 0, i64 0), i32 %C, i32 2)
-  %cmp = icmp ne i8* %dst, null
-  ret i1 %cmp
-}
-
-; No 64 bits here
-define i1 @test12(i32 %C) {
-; CHECK-LABEL: @test12(
-; CHECK-NEXT:    [[DST:%.*]] = call i8* @memchr(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @spaces, i32 0, i32 0), i32 [[C:%.*]], i32 3)
-; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i8* [[DST]], null
-; CHECK-NEXT:    ret i1 [[CMP]]
-;
-  %dst = call i8* @memchr(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @spaces, i64 0, i64 0), i32 %C, i32 3)
-  %cmp = icmp ne i8* %dst, null
-  ret i1 %cmp
-}
-
-define i1 @test13(i32 %C) {
-; CHECK-LABEL: @test13(
-; CHECK-NEXT:    [[TMP1:%.*]] = and i32 [[C:%.*]], 255
-; CHECK-NEXT:    [[MEMCHR_BOUNDS:%.*]] = icmp ult i32 [[TMP1]], 32
-; CHECK-NEXT:    [[TMP2:%.*]] = shl i32 1, [[TMP1]]
-; CHECK-NEXT:    [[TMP3:%.*]] = and i32 [[TMP2]], -2147483647
-; CHECK-NEXT:    [[MEMCHR_BITS:%.*]] = icmp ne i32 [[TMP3]], 0
-; CHECK-NEXT:    [[MEMCHR:%.*]] = and i1 [[MEMCHR_BOUNDS]], [[MEMCHR_BITS]]
-; CHECK-NEXT:    ret i1 [[MEMCHR]]
-;
-  %dst = call i8* @memchr(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @single, i64 0, i64 0), i32 %C, i32 2)
-  %cmp = icmp ne i8* %dst, null
-  ret i1 %cmp
-}
-
-define i1 @test14(i32 %C) {
-; CHECK-LABEL: @test14(
-; CHECK-NEXT:    [[TMP1:%.*]] = and i32 [[C:%.*]], 255
-; CHECK-NEXT:    [[MEMCHR_BITS:%.*]] = icmp eq i32 [[TMP1]], 31
-; CHECK-NEXT:    ret i1 [[MEMCHR_BITS]]
-;
-  %dst = call i8* @memchr(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @single, i64 0, i64 0), i32 %C, i32 1)
-  %cmp = icmp ne i8* %dst, null
-  ret i1 %cmp
-}
-
-define i1 @test15(i32 %C) {
-; CHECK-LABEL: @test15(
-; CHECK-NEXT:    [[DST:%.*]] = call i8* @memchr(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @negative, i32 0, i32 0), i32 [[C:%.*]], i32 3)
-; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i8* [[DST]], null
-; CHECK-NEXT:    ret i1 [[CMP]]
-;
-  %dst = call i8* @memchr(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @negative, i64 0, i64 0), i32 %C, i32 3)
-  %cmp = icmp ne i8* %dst, null
-  ret i1 %cmp
-}
-
-@s = internal constant [1 x i8] [i8 0], align 1
-define i8* @pr32124() {
-; CHECK-LABEL: @pr32124(
-; CHECK-NEXT:    ret i8* getelementptr inbounds ([1 x i8], [1 x i8]* @s, i32 0, i32 0)
-;
-  %res = tail call i8* @memchr(i8* getelementptr ([1 x i8], [1 x i8]* @s, i64 0, i64 0), i32 0, i32 1)
-  ret i8* %res
-}