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, 392 deletions

diff --git a/llvm/test/Transforms/InstCombine/set.ll b/llvm/test/Transforms/InstCombine/set.ll
deleted file mode 100644
index b8c349aaf94..00000000000
--- a/llvm/test/Transforms/InstCombine/set.ll
+++ /dev/null
@@ -1,392 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; This test makes sure that all icmp instructions are eliminated.
-; RUN: opt < %s -instcombine -S | FileCheck %s
-
-@X = external global i32
-
-define i1 @test1(i32 %A) {
-; CHECK-LABEL: @test1(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = icmp eq i32 %A, %A
-  ; Never true
-  %C = icmp eq i32* @X, null
-  %D = and i1 %B, %C
-  ret i1 %D
-}
-
-define i1 @test2(i32 %A) {
-; CHECK-LABEL: @test2(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = icmp ne i32 %A, %A
-  ; Never false
-  %C = icmp ne i32* @X, null
-  %D = or i1 %B, %C
-  ret i1 %D
-}
-
-define i1 @test3(i32 %A) {
-; CHECK-LABEL: @test3(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = icmp slt i32 %A, %A
-  ret i1 %B
-}
-
-
-define i1 @test4(i32 %A) {
-; CHECK-LABEL: @test4(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = icmp sgt i32 %A, %A
-  ret i1 %B
-}
-
-define i1 @test5(i32 %A) {
-; CHECK-LABEL: @test5(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = icmp sle i32 %A, %A
-  ret i1 %B
-}
-
-define i1 @test6(i32 %A) {
-; CHECK-LABEL: @test6(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = icmp sge i32 %A, %A
-  ret i1 %B
-}
-
-define i1 @test7(i32 %A) {
-; CHECK-LABEL: @test7(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = icmp uge i32 %A, 0
-  ret i1 %B
-}
-
-define i1 @test8(i32 %A) {
-; CHECK-LABEL: @test8(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = icmp ult i32 %A, 0
-  ret i1 %B
-}
-
-;; test operations on boolean values these should all be eliminated$a
-define i1 @test9(i1 %A) {
-; CHECK-LABEL: @test9(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = icmp ult i1 %A, false
-  ret i1 %B
-}
-
-define i1 @test10(i1 %A) {
-; CHECK-LABEL: @test10(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = icmp ugt i1 %A, true
-  ret i1 %B
-}
-
-define i1 @test11(i1 %A) {
-; CHECK-LABEL: @test11(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = icmp ule i1 %A, true
-  ret i1 %B
-}
-
-define i1 @test12(i1 %A) {
-; CHECK-LABEL: @test12(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = icmp uge i1 %A, false
-  ret i1 %B
-}
-
-define i1 @test13(i1 %A, i1 %B) {
-; CHECK-LABEL: @test13(
-; CHECK-NEXT:    [[TMP1:%.*]] = xor i1 [[B:%.*]], true
-; CHECK-NEXT:    [[C:%.*]] = or i1 [[TMP1]], [[A:%.*]]
-; CHECK-NEXT:    ret i1 [[C]]
-;
-  %C = icmp uge i1 %A, %B
-  ret i1 %C
-}
-
-define <2 x i1> @test13vec(<2 x i1> %A, <2 x i1> %B) {
-; CHECK-LABEL: @test13vec(
-; CHECK-NEXT:    [[TMP1:%.*]] = xor <2 x i1> [[B:%.*]], <i1 true, i1 true>
-; CHECK-NEXT:    [[C:%.*]] = or <2 x i1> [[TMP1]], [[A:%.*]]
-; CHECK-NEXT:    ret <2 x i1> [[C]]
-;
-  %C = icmp uge <2 x i1> %A, %B
-  ret <2 x i1> %C
-}
-
-define i1 @test14(i1 %A, i1 %B) {
-; CHECK-LABEL: @test14(
-; CHECK-NEXT:    [[TMP1:%.*]] = xor i1 [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT:    [[C:%.*]] = xor i1 [[TMP1]], true
-; CHECK-NEXT:    ret i1 [[C]]
-;
-  %C = icmp eq i1 %A, %B
-  ret i1 %C
-}
-
-define <3 x i1> @test14vec(<3 x i1> %A, <3 x i1> %B) {
-; CHECK-LABEL: @test14vec(
-; CHECK-NEXT:    [[TMP1:%.*]] = xor <3 x i1> [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT:    [[C:%.*]] = xor <3 x i1> [[TMP1]], <i1 true, i1 true, i1 true>
-; CHECK-NEXT:    ret <3 x i1> [[C]]
-;
-  %C = icmp eq <3 x i1> %A, %B
-  ret <3 x i1> %C
-}
-
-define i1 @bool_eq0(i64 %a) {
-; CHECK-LABEL: @bool_eq0(
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp sgt i64 [[A:%.*]], 1
-; CHECK-NEXT:    ret i1 [[TMP1]]
-;
-  %b = icmp sgt i64 %a, 0
-  %c = icmp eq i64 %a, 1
-  %notc = icmp eq i1 %c, false
-  %and = and i1 %b, %notc
-  ret i1 %and
-}
-
-; This is equivalent to the previous test.
-
-define i1 @xor_of_icmps(i64 %a) {
-; CHECK-LABEL: @xor_of_icmps(
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp sgt i64 [[A:%.*]], 1
-; CHECK-NEXT:    ret i1 [[TMP1]]
-;
-  %b = icmp sgt i64 %a, 0
-  %c = icmp eq i64 %a, 1
-  %xor = xor i1 %c, %b
-  ret i1 %xor
-}
-
-; This is also equivalent to the previous test.
-
-define i1 @xor_of_icmps_commute(i64 %a) {
-; CHECK-LABEL: @xor_of_icmps_commute(
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp sgt i64 [[A:%.*]], 1
-; CHECK-NEXT:    ret i1 [[TMP1]]
-;
-  %b = icmp sgt i64 %a, 0
-  %c = icmp eq i64 %a, 1
-  %xor = xor i1 %b, %c
-  ret i1 %xor
-}
-
-; FIXME: This is (a != 5).
-
-define i1 @xor_of_icmps_folds_more(i64 %a) {
-; CHECK-LABEL: @xor_of_icmps_folds_more(
-; CHECK-NEXT:    [[B:%.*]] = icmp sgt i64 [[A:%.*]], 4
-; CHECK-NEXT:    [[C:%.*]] = icmp slt i64 [[A]], 6
-; CHECK-NEXT:    [[XOR:%.*]] = xor i1 [[B]], [[C]]
-; CHECK-NEXT:    ret i1 [[XOR]]
-;
-  %b = icmp sgt i64 %a, 4
-  %c = icmp slt i64 %a, 6
-  %xor = xor i1 %b, %c
-  ret i1 %xor
-}
-
-; https://bugs.llvm.org/show_bug.cgi?id=2844
-
-define i32 @PR2844(i32 %x) {
-; CHECK-LABEL: @PR2844(
-; CHECK-NEXT:    [[A:%.*]] = icmp ne i32 [[X:%.*]], 0
-; CHECK-NEXT:    [[B:%.*]] = icmp sgt i32 [[X]], -638208502
-; CHECK-NEXT:    [[TMP1:%.*]] = and i1 [[A]], [[B]]
-; CHECK-NEXT:    [[SEL:%.*]] = zext i1 [[TMP1]] to i32
-; CHECK-NEXT:    ret i32 [[SEL]]
-;
-  %A = icmp eq i32 %x, 0
-  %B = icmp slt i32 %x, -638208501
-  %or = or i1 %A, %B
-  %sel = select i1 %or, i32 0, i32 1
-  ret i32 %sel
-}
-
-define i1 @test16(i32 %A) {
-; CHECK-LABEL: @test16(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = and i32 %A, 5
-  ; Is never true
-  %C = icmp eq i32 %B, 8
-  ret i1 %C
-}
-
-define i1 @test17(i8 %A) {
-; CHECK-LABEL: @test17(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = or i8 %A, 1
-  ; Always false
-  %C = icmp eq i8 %B, 2
-  ret i1 %C
-}
-
-define i1 @test18(i1 %C, i32 %a) {
-; CHECK-LABEL: @test18(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    br i1 [[C:%.*]], label [[ENDIF:%.*]], label [[ELSE:%.*]]
-; CHECK:       else:
-; CHECK-NEXT:    br label [[ENDIF]]
-; CHECK:       endif:
-; CHECK-NEXT:    ret i1 true
-;
-entry:
-  br i1 %C, label %endif, label %else
-
-else:
-  br label %endif
-
-endif:
-  %b.0 = phi i32 [ 0, %entry ], [ 1, %else ]
-  %tmp.4 = icmp slt i32 %b.0, 123
-  ret i1 %tmp.4
-}
-
-define i1 @test19(i1 %A, i1 %B) {
-; CHECK-LABEL: @test19(
-; CHECK-NEXT:    [[TMP1:%.*]] = xor i1 [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT:    [[C:%.*]] = xor i1 [[TMP1]], true
-; CHECK-NEXT:    ret i1 [[C]]
-;
-  %a = zext i1 %A to i32
-  %b = zext i1 %B to i32
-  %C = icmp eq i32 %a, %b
-  ret i1 %C
-}
-
-define i32 @test20(i32 %A) {
-; CHECK-LABEL: @test20(
-; CHECK-NEXT:    [[B:%.*]] = and i32 [[A:%.*]], 1
-; CHECK-NEXT:    ret i32 [[B]]
-;
-  %B = and i32 %A, 1
-  %C = icmp ne i32 %B, 0
-  %D = zext i1 %C to i32
-  ret i32 %D
-}
-
-define <2 x i32> @test20vec(<2 x i32> %A) {
-; CHECK-LABEL: @test20vec(
-; CHECK-NEXT:    [[B:%.*]] = and <2 x i32> [[A:%.*]], <i32 1, i32 1>
-; CHECK-NEXT:    ret <2 x i32> [[B]]
-;
-  %B = and <2 x i32> %A, <i32 1, i32 1>
-  %C = icmp ne <2 x i32> %B, zeroinitializer
-  %D = zext <2 x i1> %C to <2 x i32>
-  ret <2 x i32> %D
-}
-
-define i32 @test21(i32 %a) {
-; CHECK-LABEL: @test21(
-; CHECK-NEXT:    [[TMP_6:%.*]] = lshr i32 [[A:%.*]], 2
-; CHECK-NEXT:    [[TMP_6_LOBIT:%.*]] = and i32 [[TMP_6]], 1
-; CHECK-NEXT:    ret i32 [[TMP_6_LOBIT]]
-;
-  %tmp.6 = and i32 %a, 4
-  %not.tmp.7 = icmp ne i32 %tmp.6, 0
-  %retval = zext i1 %not.tmp.7 to i32
-  ret i32 %retval
-}
-
-define <2 x i32> @test21vec(<2 x i32> %a) {
-; CHECK-LABEL: @test21vec(
-; CHECK-NEXT:    [[TMP_6:%.*]] = lshr <2 x i32> [[A:%.*]], <i32 2, i32 2>
-; CHECK-NEXT:    [[TMP_6_LOBIT:%.*]] = and <2 x i32> [[TMP_6]], <i32 1, i32 1>
-; CHECK-NEXT:    ret <2 x i32> [[TMP_6_LOBIT]]
-;
-  %tmp.6 = and <2 x i32> %a, <i32 4, i32 4>
-  %not.tmp.7 = icmp ne <2 x i32> %tmp.6, zeroinitializer
-  %retval = zext <2 x i1> %not.tmp.7 to <2 x i32>
-  ret <2 x i32> %retval
-}
-
-define i1 @test22(i32 %A, i32 %X) {
-; CHECK-LABEL: @test22(
-; CHECK-NEXT:    ret i1 true
-;
-  %B = and i32 %A, 100663295
-  %C = icmp ult i32 %B, 268435456
-  %Y = and i32 %X, 7
-  %Z = icmp sgt i32 %Y, -1
-  %R = or i1 %C, %Z
-  ret i1 %R
-}
-
-define i32 @test23(i32 %a) {
-; CHECK-LABEL: @test23(
-; CHECK-NEXT:    [[TMP_1:%.*]] = and i32 [[A:%.*]], 1
-; CHECK-NEXT:    [[TMP1:%.*]] = xor i32 [[TMP_1]], 1
-; CHECK-NEXT:    ret i32 [[TMP1]]
-;
-  %tmp.1 = and i32 %a, 1
-  %tmp.2 = icmp eq i32 %tmp.1, 0
-  %tmp.3 = zext i1 %tmp.2 to i32
-  ret i32 %tmp.3
-}
-
-define <2 x i32> @test23vec(<2 x i32> %a) {
-; CHECK-LABEL: @test23vec(
-; CHECK-NEXT:    [[TMP_1:%.*]] = and <2 x i32> [[A:%.*]], <i32 1, i32 1>
-; CHECK-NEXT:    [[TMP1:%.*]] = xor <2 x i32> [[TMP_1]], <i32 1, i32 1>
-; CHECK-NEXT:    ret <2 x i32> [[TMP1]]
-;
-  %tmp.1 = and <2 x i32> %a, <i32 1, i32 1>
-  %tmp.2 = icmp eq <2 x i32> %tmp.1, zeroinitializer
-  %tmp.3 = zext <2 x i1> %tmp.2 to <2 x i32>
-  ret <2 x i32> %tmp.3
-}
-
-define i32 @test24(i32 %a) {
-; CHECK-LABEL: @test24(
-; CHECK-NEXT:    [[TMP_1:%.*]] = lshr i32 [[A:%.*]], 2
-; CHECK-NEXT:    [[TMP_1_LOBIT:%.*]] = and i32 [[TMP_1]], 1
-; CHECK-NEXT:    [[TMP1:%.*]] = xor i32 [[TMP_1_LOBIT]], 1
-; CHECK-NEXT:    ret i32 [[TMP1]]
-;
-  %tmp1 = and i32 %a, 4
-  %tmp.1 = lshr i32 %tmp1, 2
-  %tmp.2 = icmp eq i32 %tmp.1, 0
-  %tmp.3 = zext i1 %tmp.2 to i32
-  ret i32 %tmp.3
-}
-
-define <2 x i32> @test24vec(<2 x i32> %a) {
-; CHECK-LABEL: @test24vec(
-; CHECK-NEXT:    [[TMP_1:%.*]] = lshr <2 x i32> [[A:%.*]], <i32 2, i32 2>
-; CHECK-NEXT:    [[TMP_1_LOBIT:%.*]] = and <2 x i32> [[TMP_1]], <i32 1, i32 1>
-; CHECK-NEXT:    [[TMP1:%.*]] = xor <2 x i32> [[TMP_1_LOBIT]], <i32 1, i32 1>
-; CHECK-NEXT:    ret <2 x i32> [[TMP1]]
-;
-  %tmp1 = and <2 x i32> %a, <i32 4, i32 4>
-  %tmp.1 = lshr <2 x i32> %tmp1, <i32 2, i32 2>
-  %tmp.2 = icmp eq <2 x i32> %tmp.1, zeroinitializer
-  %tmp.3 = zext <2 x i1> %tmp.2 to <2 x i32>
-  ret <2 x i32> %tmp.3
-}
-
-define i1 @test25(i32 %A) {
-; CHECK-LABEL: @test25(
-; CHECK-NEXT:    ret i1 false
-;
-  %B = and i32 %A, 2
-  %C = icmp ugt i32 %B, 2
-  ret i1 %C
-}
-