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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s --basic-aa -loop-interchange -verify-dom-info -verify-loop-info -verify-scev -verify-loop-lcssa -S | FileCheck %s
@b = constant [200 x [100 x i32]] zeroinitializer, align 4
@a = constant i32 0, align 4
; // Loop wth two outer indvars.
; int a, c, d, e;
; int b[200][100];
; void test1() {
; for (c = 0, e = 1; c < 100 && e < 150; c++, e++) {
; d = 5;
; for (; d; d--)
; a |= b[d][c + 9];
; }
; }
define void @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = load i32, i32* @a, align 4
; CHECK-NEXT: br label [[FOR_BODY4_PREHEADER:%.*]]
; CHECK: for.cond2.preheader.preheader:
; CHECK-NEXT: br label [[FOR_COND2_PREHEADER:%.*]]
; CHECK: for.cond2.preheader:
; CHECK-NEXT: [[INDVAR0:%.*]] = phi i64 [ [[INDVAR0_NEXT:%.*]], [[FOR_INC7:%.*]] ], [ 0, [[FOR_COND2_PREHEADER_PREHEADER:%.*]] ]
; CHECK-NEXT: [[INDVAR1:%.*]] = phi i32 [ [[INDVAR1_NEXT:%.*]], [[FOR_INC7]] ], [ 1, [[FOR_COND2_PREHEADER_PREHEADER]] ]
; CHECK-NEXT: [[OR13:%.*]] = phi i32 [ [[OR:%.*]], [[FOR_INC7]] ], [ [[OR_REDUCTION:%.*]], [[FOR_COND2_PREHEADER_PREHEADER]] ]
; CHECK-NEXT: [[INDEX:%.*]] = add nsw i64 [[INDVAR0]], 9
; CHECK-NEXT: br label [[FOR_BODY4_SPLIT1:%.*]]
; CHECK: for.body4.preheader:
; CHECK-NEXT: br label [[FOR_BODY4:%.*]]
; CHECK: for.body4:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[TMP0:%.*]], [[FOR_BODY4_SPLIT:%.*]] ], [ 5, [[FOR_BODY4_PREHEADER]] ]
; CHECK-NEXT: [[OR_REDUCTION]] = phi i32 [ [[OR_LCSSA:%.*]], [[FOR_BODY4_SPLIT]] ], [ [[A]], [[FOR_BODY4_PREHEADER]] ]
; CHECK-NEXT: br label [[FOR_COND2_PREHEADER_PREHEADER]]
; CHECK: for.body4.split1:
; CHECK-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds [200 x [100 x i32]], [200 x [100 x i32]]* @b, i64 0, i64 [[INDVARS_IV]], i64 [[INDEX]]
; CHECK-NEXT: [[LOAD_VAL:%.*]] = load i32, i32* [[ARRAYIDX6]], align 4
; CHECK-NEXT: [[OR]] = or i32 [[OR13]], [[LOAD_VAL]]
; CHECK-NEXT: [[INDVARS_IV_NEXT:%.*]] = add nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 0
; CHECK-NEXT: br label [[FOR_INC7]]
; CHECK: for.body4.split:
; CHECK-NEXT: [[OR_LCSSA]] = phi i32 [ [[OR]], [[FOR_INC7]] ]
; CHECK-NEXT: [[TMP0]] = add nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[TMP0]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_COND_FOR_END9_CRIT_EDGE:%.*]], label [[FOR_BODY4]]
; CHECK: for.inc7:
; CHECK-NEXT: [[INDVAR0_NEXT]] = add nsw i64 [[INDVAR0]], 1
; CHECK-NEXT: [[INDVAR1_NEXT]] = add nsw i32 [[INDVAR1]], 1
; CHECK-NEXT: [[INDVAR0_NEXT_TRUNC:%.*]] = trunc i64 [[INDVAR0_NEXT]] to i32
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[INDVAR0_NEXT_TRUNC]], 100
; CHECK-NEXT: [[TOBOOL1:%.*]] = icmp ne i32 [[INDVAR1_NEXT]], 150
; CHECK-NEXT: [[OUTER_COND:%.*]] = and i1 [[TOBOOL]], [[TOBOOL1]]
; CHECK-NEXT: br i1 [[OUTER_COND]], label [[FOR_COND2_PREHEADER]], label [[FOR_BODY4_SPLIT]]
; CHECK: for.cond.for.end9_crit_edge:
; CHECK-NEXT: [[OR_LCSSA_LCSSA:%.*]] = phi i32 [ [[OR_LCSSA]], [[FOR_BODY4_SPLIT]] ]
; CHECK-NEXT: store i32 [[OR_LCSSA_LCSSA]], i32* @a, align 4
; CHECK-NEXT: br label [[FOR_END9:%.*]]
; CHECK: for.end9:
; CHECK-NEXT: ret void
;
entry:
%a = load i32, i32* @a, align 4
br label %for.cond2.preheader
for.cond2.preheader: ; preds = %entry, %for.inc7
%indvar0 = phi i64 [ 0, %entry ], [ %indvar0.next, %for.inc7 ]
%or.reduction = phi i32 [ %a, %entry ], [ %or.lcssa, %for.inc7 ]
%indvar1 = phi i32 [ 1, %entry ], [ %indvar1.next, %for.inc7 ]
%index = add nsw i64 %indvar0, 9
br label %for.body4
for.body4: ; preds = %for.cond2.preheader, %for.body4
%indvars.iv = phi i64 [ 5, %for.cond2.preheader ], [ %indvars.iv.next, %for.body4 ]
%or13 = phi i32 [ %or.reduction, %for.cond2.preheader ], [ %or, %for.body4 ]
%arrayidx6 = getelementptr inbounds [200 x [100 x i32]], [200 x [100 x i32]]* @b, i64 0, i64 %indvars.iv, i64 %index
%load.val = load i32, i32* %arrayidx6, align 4
%or = or i32 %or13, %load.val
%indvars.iv.next = add nsw i64 %indvars.iv, -1
%tobool3 = icmp eq i64 %indvars.iv.next, 0
br i1 %tobool3, label %for.inc7, label %for.body4
for.inc7: ; preds = %for.body4
%or.lcssa = phi i32 [ %or, %for.body4 ]
%indvar0.next = add nsw i64 %indvar0, 1
%indvar1.next = add nsw i32 %indvar1, 1
%indvar0.next.trunc = trunc i64 %indvar0.next to i32
%tobool = icmp ne i32 %indvar0.next.trunc, 100
%tobool1 = icmp ne i32 %indvar1.next, 150
%outer.cond = and i1 %tobool, %tobool1
br i1 %outer.cond, label %for.cond2.preheader, label %for.cond.for.end9_crit_edge
for.cond.for.end9_crit_edge: ; preds = %for.inc7
%or.lcssa.lcssa = phi i32 [ %or.lcssa, %for.inc7 ]
store i32 %or.lcssa.lcssa, i32* @a, align 4
br label %for.end9
for.end9: ; preds = %for.cond.for.end9_crit_edge, %entry
ret void
}
; // Both two outer indvars are involved in array accesses
; // inside the inner loop.
; int a, c, d, e;
; int b[200][100];
; void test2() {
; for (c = 0, e = 1; c < 100 && e < 150; c++, e++) {
; d = 5;
; for (; d; d--)
; a |= b[d + e][c + 9];
; }
; }
define void @test2() {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = load i32, i32* @a, align 4
; CHECK-NEXT: br label [[FOR_BODY4_PREHEADER:%.*]]
; CHECK: for.cond2.preheader.preheader:
; CHECK-NEXT: br label [[FOR_COND2_PREHEADER:%.*]]
; CHECK: for.cond2.preheader:
; CHECK-NEXT: [[INDVAR0:%.*]] = phi i64 [ [[INDVAR0_NEXT:%.*]], [[FOR_INC7:%.*]] ], [ 0, [[FOR_COND2_PREHEADER_PREHEADER:%.*]] ]
; CHECK-NEXT: [[INDVAR1:%.*]] = phi i64 [ [[INDVAR1_NEXT:%.*]], [[FOR_INC7]] ], [ 1, [[FOR_COND2_PREHEADER_PREHEADER]] ]
; CHECK-NEXT: [[OR13:%.*]] = phi i32 [ [[OR:%.*]], [[FOR_INC7]] ], [ [[OR_REDUCTION:%.*]], [[FOR_COND2_PREHEADER_PREHEADER]] ]
; CHECK-NEXT: [[INDEX0:%.*]] = add nsw i64 [[INDVAR0]], 9
; CHECK-NEXT: br label [[FOR_BODY4_SPLIT1:%.*]]
; CHECK: for.body4.preheader:
; CHECK-NEXT: br label [[FOR_BODY4:%.*]]
; CHECK: for.body4:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[TMP0:%.*]], [[FOR_BODY4_SPLIT:%.*]] ], [ 5, [[FOR_BODY4_PREHEADER]] ]
; CHECK-NEXT: [[OR_REDUCTION]] = phi i32 [ [[OR_LCSSA:%.*]], [[FOR_BODY4_SPLIT]] ], [ [[A]], [[FOR_BODY4_PREHEADER]] ]
; CHECK-NEXT: br label [[FOR_COND2_PREHEADER_PREHEADER]]
; CHECK: for.body4.split1:
; CHECK-NEXT: [[INDEX1:%.*]] = add nsw i64 [[INDVARS_IV]], [[INDVAR1]]
; CHECK-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds [200 x [100 x i32]], [200 x [100 x i32]]* @b, i64 0, i64 [[INDEX1]], i64 [[INDEX0]]
; CHECK-NEXT: [[LOAD_VAL:%.*]] = load i32, i32* [[ARRAYIDX6]], align 4
; CHECK-NEXT: [[OR]] = or i32 [[OR13]], [[LOAD_VAL]]
; CHECK-NEXT: [[INDVARS_IV_NEXT:%.*]] = add nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 0
; CHECK-NEXT: br label [[FOR_INC7]]
; CHECK: for.body4.split:
; CHECK-NEXT: [[OR_LCSSA]] = phi i32 [ [[OR]], [[FOR_INC7]] ]
; CHECK-NEXT: [[TMP0]] = add nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[TMP0]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_COND_FOR_END9_CRIT_EDGE:%.*]], label [[FOR_BODY4]]
; CHECK: for.inc7:
; CHECK-NEXT: [[INDVAR0_NEXT]] = add nsw i64 [[INDVAR0]], 1
; CHECK-NEXT: [[INDVAR1_NEXT]] = add nsw i64 [[INDVAR1]], 1
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i64 [[INDVAR0_NEXT]], 100
; CHECK-NEXT: [[TOBOOL1:%.*]] = icmp ne i64 [[INDVAR1_NEXT]], 150
; CHECK-NEXT: [[OUTER_COND:%.*]] = and i1 [[TOBOOL]], [[TOBOOL1]]
; CHECK-NEXT: br i1 [[OUTER_COND]], label [[FOR_COND2_PREHEADER]], label [[FOR_BODY4_SPLIT]]
; CHECK: for.cond.for.end9_crit_edge:
; CHECK-NEXT: [[OR_LCSSA_LCSSA:%.*]] = phi i32 [ [[OR_LCSSA]], [[FOR_BODY4_SPLIT]] ]
; CHECK-NEXT: store i32 [[OR_LCSSA_LCSSA]], i32* @a, align 4
; CHECK-NEXT: br label [[FOR_END9:%.*]]
; CHECK: for.end9:
; CHECK-NEXT: ret void
;
entry:
%a = load i32, i32* @a, align 4
br label %for.cond2.preheader
for.cond2.preheader: ; preds = %entry, %for.inc7
%indvar0 = phi i64 [ 0, %entry ], [ %indvar0.next, %for.inc7 ]
%or.reduction = phi i32 [ %a, %entry ], [ %or.lcssa, %for.inc7 ]
%indvar1 = phi i64 [ 1, %entry ], [ %indvar1.next, %for.inc7 ]
%index0 = add nsw i64 %indvar0, 9
br label %for.body4
for.body4: ; preds = %for.cond2.preheader, %for.body4
%indvars.iv = phi i64 [ 5, %for.cond2.preheader ], [ %indvars.iv.next, %for.body4 ]
%or13 = phi i32 [ %or.reduction, %for.cond2.preheader ], [ %or, %for.body4 ]
%index1 = add nsw i64 %indvars.iv, %indvar1
%arrayidx6 = getelementptr inbounds [200 x [100 x i32]], [200 x [100 x i32]]* @b, i64 0, i64 %index1, i64 %index0
%load.val = load i32, i32* %arrayidx6, align 4
%or = or i32 %or13, %load.val
%indvars.iv.next = add nsw i64 %indvars.iv, -1
%tobool3 = icmp eq i64 %indvars.iv.next, 0
br i1 %tobool3, label %for.inc7, label %for.body4
for.inc7: ; preds = %for.body4
%or.lcssa = phi i32 [ %or, %for.body4 ]
%indvar0.next = add nsw i64 %indvar0, 1
%indvar1.next = add nsw i64 %indvar1, 1
%tobool = icmp ne i64 %indvar0.next, 100
%tobool1 = icmp ne i64 %indvar1.next, 150
%outer.cond = and i1 %tobool, %tobool1
br i1 %outer.cond, label %for.cond2.preheader, label %for.cond.for.end9_crit_edge
for.cond.for.end9_crit_edge: ; preds = %for.inc7
%or.lcssa.lcssa = phi i32 [ %or.lcssa, %for.inc7 ]
store i32 %or.lcssa.lcssa, i32* @a, align 4
br label %for.end9
for.end9: ; preds = %for.cond.for.end9_crit_edge, %entry
ret void
}
; // Both two outer indvars are involved in a single
; // outer loop exit condition.
; int a, c, d, e;
; int b[200][100];
; void test3() {
; for (c = 0, e = 1; c + e < 150; c++, e++) {
; d = 5;
; for (; d; d--)
; a |= b[d + e][c + 9];
; }
; }
define void @test3() {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = load i32, i32* @a, align 4
; CHECK-NEXT: br label [[FOR_BODY4_PREHEADER:%.*]]
; CHECK: for.cond2.preheader.preheader:
; CHECK-NEXT: br label [[FOR_COND2_PREHEADER:%.*]]
; CHECK: for.cond2.preheader:
; CHECK-NEXT: [[INDVAR0:%.*]] = phi i64 [ [[INDVAR0_NEXT:%.*]], [[FOR_INC7:%.*]] ], [ 0, [[FOR_COND2_PREHEADER_PREHEADER:%.*]] ]
; CHECK-NEXT: [[INDVAR1:%.*]] = phi i64 [ [[INDVAR1_NEXT:%.*]], [[FOR_INC7]] ], [ 1, [[FOR_COND2_PREHEADER_PREHEADER]] ]
; CHECK-NEXT: [[OR13:%.*]] = phi i32 [ [[OR:%.*]], [[FOR_INC7]] ], [ [[OR_REDUCTION:%.*]], [[FOR_COND2_PREHEADER_PREHEADER]] ]
; CHECK-NEXT: [[INDEX0:%.*]] = add nsw i64 [[INDVAR0]], 9
; CHECK-NEXT: br label [[FOR_BODY4_SPLIT1:%.*]]
; CHECK: for.body4.preheader:
; CHECK-NEXT: br label [[FOR_BODY4:%.*]]
; CHECK: for.body4:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[TMP0:%.*]], [[FOR_BODY4_SPLIT:%.*]] ], [ 5, [[FOR_BODY4_PREHEADER]] ]
; CHECK-NEXT: [[OR_REDUCTION]] = phi i32 [ [[OR_LCSSA:%.*]], [[FOR_BODY4_SPLIT]] ], [ [[A]], [[FOR_BODY4_PREHEADER]] ]
; CHECK-NEXT: br label [[FOR_COND2_PREHEADER_PREHEADER]]
; CHECK: for.body4.split1:
; CHECK-NEXT: [[INDEX1:%.*]] = add nsw i64 [[INDVARS_IV]], [[INDVAR1]]
; CHECK-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds [200 x [100 x i32]], [200 x [100 x i32]]* @b, i64 0, i64 [[INDEX1]], i64 [[INDEX0]]
; CHECK-NEXT: [[LOAD_VAL:%.*]] = load i32, i32* [[ARRAYIDX6]], align 4
; CHECK-NEXT: [[OR]] = or i32 [[OR13]], [[LOAD_VAL]]
; CHECK-NEXT: [[INDVARS_IV_NEXT:%.*]] = add nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 0
; CHECK-NEXT: br label [[FOR_INC7]]
; CHECK: for.body4.split:
; CHECK-NEXT: [[OR_LCSSA]] = phi i32 [ [[OR]], [[FOR_INC7]] ]
; CHECK-NEXT: [[TMP0]] = add nsw i64 [[INDVARS_IV]], -1
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[TMP0]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_COND_FOR_END9_CRIT_EDGE:%.*]], label [[FOR_BODY4]]
; CHECK: for.inc7:
; CHECK-NEXT: [[INDVAR0_NEXT]] = add nsw i64 [[INDVAR0]], 1
; CHECK-NEXT: [[INDVAR1_NEXT]] = add nsw i64 [[INDVAR1]], 1
; CHECK-NEXT: [[OUTER_INDVAR_ADD:%.*]] = add nsw i64 [[INDVAR0_NEXT]], [[INDVAR1_NEXT]]
; CHECK-NEXT: [[OUTER_COND:%.*]] = icmp slt i64 [[OUTER_INDVAR_ADD]], 150
; CHECK-NEXT: br i1 [[OUTER_COND]], label [[FOR_COND2_PREHEADER]], label [[FOR_BODY4_SPLIT]]
; CHECK: for.cond.for.end9_crit_edge:
; CHECK-NEXT: [[OR_LCSSA_LCSSA:%.*]] = phi i32 [ [[OR_LCSSA]], [[FOR_BODY4_SPLIT]] ]
; CHECK-NEXT: store i32 [[OR_LCSSA_LCSSA]], i32* @a, align 4
; CHECK-NEXT: br label [[FOR_END9:%.*]]
; CHECK: for.end9:
; CHECK-NEXT: ret void
;
entry:
%a = load i32, i32* @a, align 4
br label %for.cond2.preheader
for.cond2.preheader: ; preds = %entry, %for.inc7
%indvar0 = phi i64 [ 0, %entry ], [ %indvar0.next, %for.inc7 ]
%or.reduction = phi i32 [ %a, %entry ], [ %or.lcssa, %for.inc7 ]
%indvar1 = phi i64 [ 1, %entry ], [ %indvar1.next, %for.inc7 ]
%index0 = add nsw i64 %indvar0, 9
br label %for.body4
for.body4: ; preds = %for.cond2.preheader, %for.body4
%indvars.iv = phi i64 [ 5, %for.cond2.preheader ], [ %indvars.iv.next, %for.body4 ]
%or13 = phi i32 [ %or.reduction, %for.cond2.preheader ], [ %or, %for.body4 ]
%index1 = add nsw i64 %indvars.iv, %indvar1
%arrayidx6 = getelementptr inbounds [200 x [100 x i32]], [200 x [100 x i32]]* @b, i64 0, i64 %index1, i64 %index0
%load.val = load i32, i32* %arrayidx6, align 4
%or = or i32 %or13, %load.val
%indvars.iv.next = add nsw i64 %indvars.iv, -1
%tobool3 = icmp eq i64 %indvars.iv.next, 0
br i1 %tobool3, label %for.inc7, label %for.body4
for.inc7: ; preds = %for.body4
%or.lcssa = phi i32 [ %or, %for.body4 ]
%indvar0.next = add nsw i64 %indvar0, 1
%indvar1.next = add nsw i64 %indvar1, 1
%outer.indvar.add = add nsw i64 %indvar0.next, %indvar1.next
%outer.cond = icmp slt i64 %outer.indvar.add, 150
br i1 %outer.cond, label %for.cond2.preheader, label %for.cond.for.end9_crit_edge
for.cond.for.end9_crit_edge: ; preds = %for.inc7
%or.lcssa.lcssa = phi i32 [ %or.lcssa, %for.inc7 ]
store i32 %or.lcssa.lcssa, i32* @a, align 4
br label %for.end9
for.end9: ; preds = %for.cond.for.end9_crit_edge, %entry
ret void
}
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