| ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4 |
| ; RUN: opt -passes='print<access-info>' -disable-output %s 2>&1 | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| |
| define void @forward_dep_known_safe_due_to_backedge_taken_count(ptr %A) { |
| ; CHECK-LABEL: 'forward_dep_known_safe_due_to_backedge_taken_count' |
| ; CHECK-NEXT: loop: |
| ; CHECK-NEXT: Memory dependences are safe |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Forward: |
| ; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 -> |
| ; CHECK-NEXT: store i32 %add, ptr %gep, align 4 |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. |
| ; CHECK-NEXT: SCEV assumptions: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Expressions re-written: |
| ; |
| entry: |
| %A.511= getelementptr inbounds i32, ptr %A, i64 511 |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %iv.mul.2 = shl nuw nsw i64 %iv, 1 |
| %gep.mul.2 = getelementptr inbounds i32, ptr %A.511, i64 %iv.mul.2 |
| %l = load i32, ptr %gep.mul.2, align 4 |
| %add = add nsw i32 %l, 5 |
| %gep = getelementptr inbounds i32, ptr %A, i64 %iv |
| store i32 %add, ptr %gep, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, 256 |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |
| define void @forward_dep_not_known_safe_due_to_backedge_taken_count(ptr %A) { |
| ; CHECK-LABEL: 'forward_dep_not_known_safe_due_to_backedge_taken_count' |
| ; CHECK-NEXT: loop: |
| ; CHECK-NEXT: Memory dependences are safe |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Forward: |
| ; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 -> |
| ; CHECK-NEXT: store i32 %add, ptr %gep, align 4 |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. |
| ; CHECK-NEXT: SCEV assumptions: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Expressions re-written: |
| ; |
| entry: |
| %A.510 = getelementptr inbounds i32, ptr %A, i64 510 |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %iv.mul.2 = shl nuw nsw i64 %iv, 1 |
| %gep.mul.2 = getelementptr inbounds i32, ptr %A.510, i64 %iv.mul.2 |
| %l = load i32, ptr %gep.mul.2, align 4 |
| %add = add nsw i32 %l, 5 |
| %gep = getelementptr inbounds i32, ptr %A, i64 %iv |
| store i32 %add, ptr %gep, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, 256 |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |
| define void @unknown_dep_known_safe_due_to_backedge_taken_count(ptr %A) { |
| ; CHECK-LABEL: 'unknown_dep_known_safe_due_to_backedge_taken_count' |
| ; CHECK-NEXT: loop: |
| ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop |
| ; CHECK-NEXT: Unknown data dependence. |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Unknown: |
| ; CHECK-NEXT: %l = load i32, ptr %gep, align 4 -> |
| ; CHECK-NEXT: store i32 %add, ptr %gep.mul.2, align 4 |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. |
| ; CHECK-NEXT: SCEV assumptions: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Expressions re-written: |
| ; |
| entry: |
| %A.511 = getelementptr inbounds i32, ptr %A, i64 511 |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %iv.mul.2 = shl nuw nsw i64 %iv, 1 |
| %gep = getelementptr inbounds i32, ptr %A, i64 %iv |
| %l = load i32, ptr %gep, align 4 |
| %add = add nsw i32 %l, 5 |
| %gep.mul.2 = getelementptr inbounds i32, ptr %A.511, i64 %iv.mul.2 |
| store i32 %add, ptr %gep.mul.2, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, 256 |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |
| define void @unknown_dep_not_known_safe_due_to_backedge_taken_count(ptr %A) { |
| ; CHECK-LABEL: 'unknown_dep_not_known_safe_due_to_backedge_taken_count' |
| ; CHECK-NEXT: loop: |
| ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop |
| ; CHECK-NEXT: Unknown data dependence. |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Unknown: |
| ; CHECK-NEXT: %l = load i32, ptr %gep, align 4 -> |
| ; CHECK-NEXT: store i32 %add, ptr %gep.mul.2, align 4 |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. |
| ; CHECK-NEXT: SCEV assumptions: |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Expressions re-written: |
| ; |
| entry: |
| %A.510 = getelementptr inbounds i32, ptr %A, i64 510 |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %iv.mul.2 = shl nuw nsw i64 %iv, 1 |
| %gep = getelementptr inbounds i32, ptr %A, i64 %iv |
| %l = load i32, ptr %gep, align 4 |
| %add = add nsw i32 %l, 5 |
| %gep.mul.2 = getelementptr inbounds i32, ptr %A.510, i64 %iv.mul.2 |
| store i32 %add, ptr %gep.mul.2, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, 256 |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |