| ; RUN: opt -disable-output -passes='print<access-info>' %s 2>&1 | FileCheck %s |
| ; RUN: opt -disable-output -passes='print<access-info>' -max-forked-scev-depth=2 %s 2>&1 | FileCheck -check-prefix=RECURSE %s |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| |
| ; CHECK-LABEL: function 'forked_ptrs_simple': |
| ; CHECK-NEXT: loop: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %gep.Dest = getelementptr inbounds float, ptr %Dest, i64 %iv |
| ; CHECK-NEXT: %gep.Dest = getelementptr inbounds float, ptr %Dest, i64 %iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %select = select i1 %cmp, ptr %gep.1, ptr %gep.2 |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %gep.Dest = getelementptr inbounds float, ptr %Dest, i64 %iv |
| ; CHECK-NEXT: %gep.Dest = getelementptr inbounds float, ptr %Dest, i64 %iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %select = select i1 %cmp, ptr %gep.1, ptr %gep.2 |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]] |
| ; CHECK-NEXT: (Low: %Dest High: (400 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%loop> |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%loop> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (400 + %Base1)) |
| ; CHECK-NEXT: Member: {%Base1,+,4}<nw><%loop> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: %Base2 High: (400 + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,4}<nw><%loop> |
| ; 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: |
| |
| define void @forked_ptrs_simple(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr %Dest) { |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %gep.Dest = getelementptr inbounds float, ptr %Dest, i64 %iv |
| %l.Dest = load float, ptr %gep.Dest |
| %cmp = fcmp une float %l.Dest, 0.0 |
| %gep.1 = getelementptr inbounds float, ptr %Base1, i64 %iv |
| %gep.2 = getelementptr inbounds float, ptr %Base2, i64 %iv |
| %select = select i1 %cmp, ptr %gep.1, ptr %gep.2 |
| %sink = load float, ptr %select, align 4 |
| store float %sink, ptr %gep.Dest, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, 100 |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_different_base_same_offset': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Check 2: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G4:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (400 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: %Base2 High: (400 + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,4}<nw><%for.body> |
| ; CHECK-NEXT: Group [[G4]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (400 + %Base1)) |
| ; CHECK-NEXT: Member: {%Base1,+,4}<nw><%for.body> |
| ; 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: |
| |
| ;; We have a limit on the recursion depth for finding a loop invariant or |
| ;; addrec term; confirm we won't exceed that depth by forcing a lower |
| ;; limit via -max-forked-scev-depth=2 |
| ; RECURSE-LABEL: Loop access info in function 'forked_ptrs_same_base_different_offset': |
| ; RECURSE-NEXT: for.body: |
| ; RECURSE-NEXT: Report: cannot identify array bounds |
| ; RECURSE-NEXT: Dependences: |
| ; RECURSE-NEXT: Run-time memory checks: |
| ; RECURSE-NEXT: Grouped accesses: |
| ; RECURSE-EMPTY: |
| ; RECURSE-NEXT: Non vectorizable stores to invariant address were not found in loop. |
| ; RECURSE-NEXT: SCEV assumptions: |
| ; RECURSE-EMPTY: |
| ; RECURSE-NEXT: Expressions re-written: |
| |
| ;;;; Derived from the following C code |
| ;; void forked_ptrs_different_base_same_offset(float *A, float *B, float *C, int *D) { |
| ;; for (int i=0; i<100; i++) { |
| ;; if (D[i] != 0) { |
| ;; C[i] = A[i]; |
| ;; } else { |
| ;; C[i] = B[i]; |
| ;; } |
| ;; } |
| ;; } |
| |
| define dso_local void @forked_ptrs_different_base_same_offset(ptr nocapture readonly nonnull %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv |
| %.sink = load float, ptr %.sink.in, align 4 |
| %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %.sink, ptr %1, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_different_base_same_offset_64b': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds double, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Check 2: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G4:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds double, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (800 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,8}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: %Base2 High: (800 + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,8}<nw><%for.body> |
| ; CHECK-NEXT: Group [[G4]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (800 + %Base1)) |
| ; CHECK-NEXT: Member: {%Base1,+,8}<nw><%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_different_base_same_offset_64b(ptr nocapture readonly nonnull %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds double, ptr %spec.select, i64 %indvars.iv |
| %.sink = load double, ptr %.sink.in, align 8 |
| %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv |
| store double %.sink, ptr %1, align 8 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_different_base_same_offset_23b': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds i23, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Check 2: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G4:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds i23, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (399 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: %Base2 High: (399 + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,4}<nw><%for.body> |
| ; CHECK-NEXT: Group [[G4]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (399 + %Base1)) |
| ; CHECK-NEXT: Member: {%Base1,+,4}<nw><%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_different_base_same_offset_23b(ptr nocapture readonly nonnull %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds i23, ptr %spec.select, i64 %indvars.iv |
| %.sink = load i23, ptr %.sink.in |
| %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv |
| store i23 %.sink, ptr %1 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_different_base_same_offset_6b': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds i6, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Check 2: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G4:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds i6, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (100 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,1}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: %Base2 High: (100 + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,1}<nw><%for.body> |
| ; CHECK-NEXT: Group [[G4]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (100 + %Base1)) |
| ; CHECK-NEXT: Member: {%Base1,+,1}<nw><%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_different_base_same_offset_6b(ptr nocapture readonly nonnull %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds i6, ptr %spec.select, i64 %indvars.iv |
| %.sink = load i6, ptr %.sink.in |
| %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv |
| store i6 %.sink, ptr %1 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_different_base_same_offset_possible_poison': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Check 2: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G4:.+]]): |
| ; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (400 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: %Base2 High: (400 + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,4}<nw><%for.body> |
| ; CHECK-NEXT: Group [[G4]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (400 + %Base1)) |
| ; CHECK-NEXT: Member: {%Base1,+,4}<nw><%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_different_base_same_offset_possible_poison(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds, i1 %c) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %latch ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv |
| %.sink = load float, ptr %.sink.in, align 4 |
| %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| br i1 %c, label %then, label %latch |
| |
| then: |
| store float %.sink, ptr %1, align 4 |
| br label %latch |
| |
| latch: |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_same_base_different_offset': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| ;;;; Derived from the following C code |
| ;; void forked_ptrs_same_base_different_offset(float *A, float *B, int *C) { |
| ;; int offset; |
| ;; for (int i = 0; i < 100; i++) { |
| ;; if (C[i] != 0) |
| ;; offset = i; |
| ;; else |
| ;; offset = i+1; |
| ;; B[i] = A[offset]; |
| ;; } |
| ;; } |
| |
| define dso_local void @forked_ptrs_same_base_different_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %i.014 = phi i32 [ 0, %entry ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %add = add nuw nsw i32 %i.014, 1 |
| %1 = trunc i64 %indvars.iv to i32 |
| %offset.0 = select i1 %cmp1.not, i32 %add, i32 %1 |
| %idxprom213 = zext i32 %offset.0 to i64 |
| %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %idxprom213 |
| %2 = load float, ptr %arrayidx3, align 4 |
| %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %2, ptr %arrayidx5, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_add_to_offset' |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| ; CHECK-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (400 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: ((4 * %extra_offset) + %Base) High: (404 + (4 * %extra_offset) + %Base)) |
| ; CHECK-NEXT: Member: {(4 + (4 * %extra_offset) + %Base),+,4}<%for.body> |
| ; CHECK-NEXT: Member: {((4 * %extra_offset) + %Base),+,4}<%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_add_to_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %extra_offset) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp.not = icmp eq i32 %0, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %sel = select i1 %cmp.not, i64 %indvars.iv.next, i64 %indvars.iv |
| %offset = add nuw nsw i64 %sel, %extra_offset |
| %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| %1 = load float, ptr %arrayidx3, align 4 |
| %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %1, ptr %arrayidx5, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_sub_from_offset' |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| ; CHECK-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (400 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: ((-4 * %extra_offset) + %Base) High: (404 + (-4 * %extra_offset) + %Base)) |
| ; CHECK-NEXT: Member: {(4 + (-4 * %extra_offset) + %Base),+,4}<%for.body> |
| ; CHECK-NEXT: Member: {((-4 * %extra_offset) + %Base),+,4}<%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_sub_from_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %extra_offset) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp.not = icmp eq i32 %0, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %sel = select i1 %cmp.not, i64 %indvars.iv.next, i64 %indvars.iv |
| %offset = sub nuw nsw i64 %sel, %extra_offset |
| %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| %1 = load float, ptr %arrayidx3, align 4 |
| %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %1, ptr %arrayidx5, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_add_sub_offset' |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| ; CHECK-NEXT: Check 1: |
| ; CHECK-NEXT: Comparing group ([[G1]]): |
| ; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| ; CHECK-NEXT: Against group ([[G3:.+]]): |
| ; CHECK-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| ; CHECK-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Dest High: (400 + %Dest)) |
| ; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Preds High: (400 + %Preds)) |
| ; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body> |
| ; CHECK-NEXT: Group [[G3]]: |
| ; CHECK-NEXT: (Low: ((4 * %to_add) + (-4 * %to_sub) + %Base) High: (404 + (4 * %to_add) + (-4 * %to_sub) + %Base)) |
| ; CHECK-NEXT: Member: {(4 + (4 * %to_add) + (-4 * %to_sub) + %Base),+,4}<%for.body> |
| ; CHECK-NEXT: Member: {((4 * %to_add) + (-4 * %to_sub) + %Base),+,4}<%for.body> |
| ; 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: |
| |
| define dso_local void @forked_ptrs_add_sub_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %to_add, i64 %to_sub) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp.not = icmp eq i32 %0, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %sel = select i1 %cmp.not, i64 %indvars.iv.next, i64 %indvars.iv |
| %add = add nuw nsw i64 %sel, %to_add |
| %offset = sub nuw nsw i64 %add, %to_sub |
| %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| %1 = load float, ptr %arrayidx3, align 4 |
| %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %1, ptr %arrayidx5, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ;;;; Cases that can be handled by a forked pointer but are not currently allowed. |
| |
| ; CHECK-LABEL: function 'forked_ptrs_mul_by_offset' |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| define dso_local void @forked_ptrs_mul_by_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %extra_offset) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp.not = icmp eq i32 %0, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %sel = select i1 %cmp.not, i64 %indvars.iv.next, i64 %indvars.iv |
| %offset = mul nuw nsw i64 %sel, %extra_offset |
| %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset |
| %1 = load float, ptr %arrayidx3, align 4 |
| %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %1, ptr %arrayidx5, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_uniform_and_strided_forks': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| ;;;; Derived from forked_ptrs_same_base_different_offset with a manually |
| ;;;; added uniform offset and a mul to provide a stride |
| |
| define dso_local void @forked_ptrs_uniform_and_strided_forks(float* nocapture readonly %Base, float* nocapture %Dest, i32* nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %i.014 = phi i32 [ 0, %entry ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %add = add nuw nsw i32 %i.014, 1 |
| %1 = trunc i64 %indvars.iv to i32 |
| %mul = mul i32 %1, 3 |
| %offset.0 = select i1 %cmp1.not, i32 4, i32 %mul |
| %idxprom213 = sext i32 %offset.0 to i64 |
| %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %idxprom213 |
| %2 = load float, ptr %arrayidx3, align 4 |
| %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %2, ptr %arrayidx5, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ; CHECK-LABEL: function 'forked_ptrs_gather_and_contiguous_forks': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| ;;;; Derived from forked_ptrs_same_base_different_offset with a gather |
| ;;;; added using Preds as an index array in addition to the per-iteration |
| ;;;; condition. |
| |
| define dso_local void @forked_ptrs_gather_and_contiguous_forks(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %arrayidx9 = getelementptr inbounds float, ptr %Base2, i64 %indvars.iv |
| %idxprom4 = sext i32 %0 to i64 |
| %arrayidx5 = getelementptr inbounds float, ptr %Base1, i64 %idxprom4 |
| %.sink.in = select i1 %cmp1.not, ptr %arrayidx9, ptr %arrayidx5 |
| %.sink = load float, ptr %.sink.in, align 4 |
| %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %.sink, ptr %1, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ;; We don't currently handle a fork in both the base and the offset of a |
| ;; GEP instruction. |
| |
| ; CHECK-LABEL: Loop access info in function 'forked_ptrs_two_forks_gep': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| define dso_local void @forked_ptrs_two_forks_gep(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %offset = select i1 %cmp1.not, i64 %indvars.iv.next, i64 %indvars.iv |
| %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %offset |
| %.sink = load float, ptr %.sink.in, align 4 |
| %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %.sink, ptr %1, align 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| ;; We don't handle forks as children of a select |
| |
| ; CHECK-LABEL: Loop access info in function 'forked_ptrs_two_select': |
| ; CHECK-NEXT: loop: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| define void @forked_ptrs_two_select(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture readonly %Base3, ptr %Dest) { |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %gep.Dest = getelementptr inbounds float, ptr %Dest, i64 %iv |
| %l.Dest = load float, ptr %gep.Dest |
| %cmp = fcmp une float %l.Dest, 0.0 |
| %cmp1 = fcmp une float %l.Dest, 1.0 |
| %gep.1 = getelementptr inbounds float, ptr %Base1, i64 %iv |
| %gep.2 = getelementptr inbounds float, ptr %Base2, i64 %iv |
| %gep.3 = getelementptr inbounds float, ptr %Base3, i64 %iv |
| %select = select i1 %cmp, ptr %gep.1, ptr %gep.2 |
| %select1 = select i1 %cmp1, ptr %select, ptr %gep.3 |
| %sink = load float, ptr %select1, align 4 |
| store float %sink, ptr %gep.Dest, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond.not = icmp eq i64 %iv.next, 100 |
| br i1 %exitcond.not, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |
| ;; We don't yet handle geps with more than 2 operands |
| ; CHECK-LABEL: Loop access info in function 'forked_ptrs_too_many_gep_ops': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| define void @forked_ptrs_too_many_gep_ops(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds [1000 x float], ptr %spec.select, i64 0, i64 %indvars.iv |
| %.sink = load float, ptr %.sink.in, align 4 |
| %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv |
| store float %.sink, ptr %1, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| } |
| |
| ;; We don't currently handle vector GEPs |
| ; CHECK-LABEL: Loop access info in function 'forked_ptrs_vector_gep': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Report: cannot identify array bounds |
| ; CHECK-NEXT: Dependences: |
| ; 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: |
| |
| define void @forked_ptrs_vector_gep(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv |
| %0 = load i32, ptr %arrayidx, align 4 |
| %cmp1.not = icmp eq i32 %0, 0 |
| %spec.select = select i1 %cmp1.not, ptr %Base2, ptr %Base1 |
| %.sink.in = getelementptr inbounds <4 x float>, ptr %spec.select, i64 %indvars.iv |
| %.sink = load <4 x float>, ptr %.sink.in, align 4 |
| %1 = getelementptr inbounds <4 x float>, ptr %Dest, i64 %indvars.iv |
| store <4 x float> %.sink, ptr %1, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 4 |
| %exitcond.not = icmp eq i64 %indvars.iv.next, 100 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| } |
| |
| ; CHECK-LABEL: Loop access info in function 'sc_add_expr_ice': |
| ; CHECK-NEXT: for.body: |
| ; CHECK-NEXT: Memory dependences are safe with run-time checks |
| ; CHECK-NEXT: Dependences: |
| ; CHECK-NEXT: Run-time memory checks: |
| ; CHECK-NEXT: Check 0: |
| ; CHECK-NEXT: Comparing group ([[G1:.+]]): |
| ; CHECK-NEXT: ptr %Base1 |
| ; CHECK-NEXT: Against group ([[G2:.+]]): |
| ; CHECK-NEXT: %fptr = getelementptr inbounds double, ptr %Base2, i64 %sel |
| ; CHECK-NEXT: Grouped accesses: |
| ; CHECK-NEXT: Group [[G1]]: |
| ; CHECK-NEXT: (Low: %Base1 High: (8 + %Base1)) |
| ; CHECK-NEXT: Member: %Base1 |
| ; CHECK-NEXT: Group [[G2]]: |
| ; CHECK-NEXT: (Low: %Base2 High: ((8 * %N) + %Base2)) |
| ; CHECK-NEXT: Member: {%Base2,+,8}<%for.body> |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. |
| ; CHECK-NEXT: SCEV assumptions: |
| ; CHECK-NEXT: {0,+,1}<%for.body> Added Flags: <nusw> |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Expressions re-written: |
| ; CHECK-NEXT: [PSE] %fptr = getelementptr inbounds double, ptr %Base2, i64 %sel: |
| ; CHECK-NEXT: ((8 * (zext i32 {0,+,1}<%for.body> to i64))<nuw><nsw> + %Base2)<nuw> |
| ; CHECK-NEXT: --> {%Base2,+,8}<%for.body> |
| |
| ;;; The following test caused an ICE with the initial forked pointers work. |
| ;;; One fork is loop invariant (%Base2 + 0), the other is an scAddExpr that |
| ;;; contains an scAddRecExpr inside it: |
| ;;; ((8 * (zext i32 {0,+,1}<%for.body> to i64))<nuw><nsw> + %Base2)<nuw> |
| ;;; |
| ;;; RtCheck::insert was expecting either loop invariant or SAR, so asserted |
| ;;; on a plain scAddExpr. For now we restrict to loop invariant or SAR |
| ;;; forks only, but we should be able to do better. |
| |
| define void @sc_add_expr_ice(ptr %Base1, ptr %Base2, i64 %N) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %iv = phi i64 [ %iv.next, %for.body ], [ 0, %entry ] |
| %iv.trunc = trunc i64 %iv to i32 |
| store double 0.000000e+00, ptr %Base1, align 8 |
| %iv.zext = zext i32 %iv.trunc to i64 |
| %sel = select i1 true, i64 %iv.zext, i64 0 |
| %fptr = getelementptr inbounds double, ptr %Base2, i64 %sel |
| %dummy.load = load double, ptr %fptr, align 8 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond = icmp eq i64 %iv.next, %N |
| br i1 %exitcond, label %exit, label %for.body |
| |
| exit: |
| ret void |
| } |