| ; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s |
| ; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s |
| |
| declare void @llvm.experimental.guard(i1, ...) |
| declare void @llvm.assume(i1) |
| |
| define void @s_0(i32 %n, i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @s_0 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i32 %iv, 1 |
| %iv.sext = sext i32 %iv to i64 |
| ; CHECK: %iv.sext = sext i32 %iv to i64 |
| ; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%loop> |
| %cmp = icmp slt i32 %iv, %n |
| call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ] |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @s_1(i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @s_1 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i32 %iv, 3 |
| %iv.sext = sext i32 %iv to i64 |
| ; CHECK: %iv.sext = sext i32 %iv to i64 |
| ; CHECK-NEXT: --> {0,+,3}<nuw><nsw><%loop> |
| %cmp = icmp slt i32 %iv, 10000 |
| call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ] |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @s_2(i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @s_2 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i32 %iv, 3 |
| %iv.sext = sext i32 %iv to i64 |
| %cmp = icmp slt i32 %iv, 10000 |
| ; CHECK: %iv.sext = sext i32 %iv to i64 |
| ; CHECK-NEXT: --> {0,+,3}<nuw><nsw><%loop> |
| call void @llvm.assume(i1 %cmp) |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @s_3(i32 %start, i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @s_3 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ %start, %entry ], [ %iv.inc, %be ] |
| %cmp = icmp slt i32 %iv, 10000 |
| br i1 %cmp, label %be, label %leave |
| |
| be: |
| %iv.inc = add i32 %iv, 3 |
| %iv.inc.sext = sext i32 %iv.inc to i64 |
| ; CHECK: %iv.inc.sext = sext i32 %iv.inc to i64 |
| ; CHECK-NEXT: --> {(sext i32 (3 + %start) to i64),+,3}<nsw><%loop> |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @s_4(i32 %start, i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @s_4 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ %start, %entry ], [ %iv.inc, %be ] |
| %cmp = icmp sgt i32 %iv, -1000 |
| br i1 %cmp, label %be, label %leave |
| |
| be: |
| %iv.inc = add i32 %iv, -3 |
| %iv.inc.sext = sext i32 %iv.inc to i64 |
| ; CHECK: %iv.inc.sext = sext i32 %iv.inc to i64 |
| ; CHECK-NEXT: --> {(sext i32 (-3 + %start) to i64),+,-3}<nsw><%loop> |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @u_0(i32 %n, i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @u_0 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i32 %iv, 1 |
| %iv.zext = zext i32 %iv to i64 |
| ; CHECK: %iv.zext = zext i32 %iv to i64 |
| ; CHECK-NEXT: --> {0,+,1}<nuw><%loop> |
| %cmp = icmp ult i32 %iv, %n |
| call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ] |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @u_1(i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @u_1 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i32 %iv, 3 |
| %iv.zext = zext i32 %iv to i64 |
| ; CHECK: %iv.zext = zext i32 %iv to i64 |
| ; CHECK-NEXT: --> {0,+,3}<nuw><%loop> |
| %cmp = icmp ult i32 %iv, 10000 |
| call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ] |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @u_2(i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @u_2 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ 30000, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i32 %iv, -2 |
| %iv.zext = zext i32 %iv to i64 |
| %cmp = icmp ugt i32 %iv.inc, -10000 |
| ; CHECK: %iv.zext = zext i32 %iv to i64 |
| ; CHECK-NEXT: --> {30000,+,-2}<nw><%loop> |
| call void @llvm.assume(i1 %cmp) |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |
| |
| define void @u_3(i32 %start, i1* %cond) { |
| ; CHECK-LABEL: Classifying expressions for: @u_3 |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [ %start, %entry ], [ %iv.inc, %be ] |
| %cmp = icmp ult i32 %iv, 10000 |
| br i1 %cmp, label %be, label %leave |
| |
| be: |
| %iv.inc = add i32 %iv, 3 |
| %iv.inc.zext = zext i32 %iv.inc to i64 |
| ; CHECK: %iv.inc.zext = zext i32 %iv.inc to i64 |
| ; CHECK-NEXT: --> {(zext i32 (3 + %start) to i64),+,3}<nuw><%loop> |
| %c = load volatile i1, i1* %cond |
| br i1 %c, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |