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llvm / llvm-project / llvm / refs/heads/master / . / test / Analysis / LoopAccessAnalysis / forked-pointers.ll
blob: fa72ae910cbbb6ad85975fb6ef4f371c32410e29 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 3
; RUN: opt -disable-output -passes='print<access-info><allow-partial>' %s 2>&1 | FileCheck %s --check-prefixes=CHECK,FULLDEPTH
; RUN: opt -disable-output -passes='print<access-info><allow-partial>' -max-forked-scev-depth=2 %s 2>&1 | FileCheck %s --check-prefixes=CHECK,DEPTH2
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
define void @forked_ptrs_simple(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr %Dest) {
; CHECK-LABEL: '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 GRP0:
; 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 GRP1:
; CHECK-NEXT: %select = select i1 %cmp, ptr %gep.1, ptr %gep.2
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; 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 GRP2:
; CHECK-NEXT: %select = select i1 %cmp, ptr %gep.1, ptr %gep.2
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%loop>
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%loop>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Base1 High: (400 + %Base1))
; CHECK-NEXT: Member: {%Base1,+,4}<nw><%loop>
; CHECK-NEXT: Group GRP2:
; 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:
;
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
}
;; 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
;;;; 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) {
; CHECK-LABEL: '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 GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Check 2:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP2:
; CHECK-NEXT: (Low: %Base2 High: (400 + %Base2))
; CHECK-NEXT: Member: {%Base2,+,4}<nw><%for.body>
; CHECK-NEXT: Group GRP3:
; 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:
;
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
}
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) {
; CHECK-LABEL: '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 GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %.sink.in = getelementptr inbounds double, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Check 2:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds double, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %.sink.in = getelementptr inbounds double, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (800 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,8}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP2:
; CHECK-NEXT: (Low: %Base2 High: (800 + %Base2))
; CHECK-NEXT: Member: {%Base2,+,8}<nw><%for.body>
; CHECK-NEXT: Group GRP3:
; 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:
;
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
}
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) {
; CHECK-LABEL: '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 GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %.sink.in = getelementptr inbounds i23, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Check 2:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds i23, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %.sink.in = getelementptr inbounds i23, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (399 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP2:
; CHECK-NEXT: (Low: %Base2 High: (399 + %Base2))
; CHECK-NEXT: Member: {%Base2,+,4}<nw><%for.body>
; CHECK-NEXT: Group GRP3:
; 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:
;
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
}
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) {
; CHECK-LABEL: '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 GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %.sink.in = getelementptr inbounds i6, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Check 2:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds i6, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %.sink.in = getelementptr inbounds i6, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (100 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,1}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP2:
; CHECK-NEXT: (Low: %Base2 High: (100 + %Base2))
; CHECK-NEXT: Member: {%Base2,+,1}<nw><%for.body>
; CHECK-NEXT: Group GRP3:
; 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:
;
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
}
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) {
; CHECK-LABEL: '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 GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Check 2:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %.sink.in = getelementptr inbounds float, ptr %spec.select, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP2:
; CHECK-NEXT: (Low: %Base2 High: (400 + %Base2))
; CHECK-NEXT: Member: {%Base2,+,4}<nw><%for.body>
; CHECK-NEXT: Group GRP3:
; 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:
;
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
}
;;;; 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) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
}
define dso_local void @forked_ptrs_add_to_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %extra_offset) {
; FULLDEPTH-LABEL: 'forked_ptrs_add_to_offset'
; FULLDEPTH-NEXT: for.body:
; FULLDEPTH-NEXT: Memory dependences are safe with run-time checks
; FULLDEPTH-NEXT: Dependences:
; FULLDEPTH-NEXT: Run-time memory checks:
; FULLDEPTH-NEXT: Check 0:
; FULLDEPTH-NEXT: Comparing group GRP0:
; FULLDEPTH-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; FULLDEPTH-NEXT: Against group GRP1:
; FULLDEPTH-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; FULLDEPTH-NEXT: Check 1:
; FULLDEPTH-NEXT: Comparing group GRP0:
; FULLDEPTH-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; FULLDEPTH-NEXT: Against group GRP2:
; FULLDEPTH-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset
; FULLDEPTH-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset
; FULLDEPTH-NEXT: Grouped accesses:
; FULLDEPTH-NEXT: Group GRP0:
; FULLDEPTH-NEXT: (Low: %Dest High: (400 + %Dest))
; FULLDEPTH-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; FULLDEPTH-NEXT: Group GRP1:
; FULLDEPTH-NEXT: (Low: %Preds High: (400 + %Preds))
; FULLDEPTH-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; FULLDEPTH-NEXT: Group GRP2:
; FULLDEPTH-NEXT: (Low: ((4 * %extra_offset) + %Base) High: (404 + (4 * %extra_offset) + %Base))
; FULLDEPTH-NEXT: Member: {(4 + (4 * %extra_offset) + %Base),+,4}<%for.body>
; FULLDEPTH-NEXT: Member: {((4 * %extra_offset) + %Base),+,4}<%for.body>
; FULLDEPTH-EMPTY:
; FULLDEPTH-NEXT: Non vectorizable stores to invariant address were not found in loop.
; FULLDEPTH-NEXT: SCEV assumptions:
; FULLDEPTH-EMPTY:
; FULLDEPTH-NEXT: Expressions re-written:
;
; DEPTH2-LABEL: 'forked_ptrs_add_to_offset'
; DEPTH2-NEXT: for.body:
; DEPTH2-NEXT: Report: cannot identify array bounds
; DEPTH2-NEXT: Dependences:
; DEPTH2-NEXT: Run-time memory checks:
; DEPTH2-NEXT: Check 0:
; DEPTH2-NEXT: Comparing group GRP0:
; DEPTH2-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; DEPTH2-NEXT: Against group GRP1:
; DEPTH2-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; DEPTH2-NEXT: Grouped accesses:
; DEPTH2-NEXT: Group GRP0:
; DEPTH2-NEXT: (Low: %Dest High: (400 + %Dest))
; DEPTH2-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; DEPTH2-NEXT: Group GRP1:
; DEPTH2-NEXT: (Low: %Preds High: (400 + %Preds))
; DEPTH2-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; DEPTH2-NEXT: Generated run-time checks are incomplete
; DEPTH2-EMPTY:
; DEPTH2-NEXT: Non vectorizable stores to invariant address were not found in loop.
; DEPTH2-NEXT: SCEV assumptions:
; DEPTH2-EMPTY:
; DEPTH2-NEXT: Expressions re-written:
;
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
}
define dso_local void @forked_ptrs_sub_from_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %extra_offset) {
; FULLDEPTH-LABEL: 'forked_ptrs_sub_from_offset'
; FULLDEPTH-NEXT: for.body:
; FULLDEPTH-NEXT: Memory dependences are safe with run-time checks
; FULLDEPTH-NEXT: Dependences:
; FULLDEPTH-NEXT: Run-time memory checks:
; FULLDEPTH-NEXT: Check 0:
; FULLDEPTH-NEXT: Comparing group GRP0:
; FULLDEPTH-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; FULLDEPTH-NEXT: Against group GRP1:
; FULLDEPTH-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; FULLDEPTH-NEXT: Check 1:
; FULLDEPTH-NEXT: Comparing group GRP0:
; FULLDEPTH-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; FULLDEPTH-NEXT: Against group GRP2:
; FULLDEPTH-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset
; FULLDEPTH-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset
; FULLDEPTH-NEXT: Grouped accesses:
; FULLDEPTH-NEXT: Group GRP0:
; FULLDEPTH-NEXT: (Low: %Dest High: (400 + %Dest))
; FULLDEPTH-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; FULLDEPTH-NEXT: Group GRP1:
; FULLDEPTH-NEXT: (Low: %Preds High: (400 + %Preds))
; FULLDEPTH-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; FULLDEPTH-NEXT: Group GRP2:
; FULLDEPTH-NEXT: (Low: ((-4 * %extra_offset) + %Base) High: (404 + (-4 * %extra_offset) + %Base))
; FULLDEPTH-NEXT: Member: {(4 + (-4 * %extra_offset) + %Base),+,4}<%for.body>
; FULLDEPTH-NEXT: Member: {((-4 * %extra_offset) + %Base),+,4}<%for.body>
; FULLDEPTH-EMPTY:
; FULLDEPTH-NEXT: Non vectorizable stores to invariant address were not found in loop.
; FULLDEPTH-NEXT: SCEV assumptions:
; FULLDEPTH-EMPTY:
; FULLDEPTH-NEXT: Expressions re-written:
;
; DEPTH2-LABEL: 'forked_ptrs_sub_from_offset'
; DEPTH2-NEXT: for.body:
; DEPTH2-NEXT: Report: cannot identify array bounds
; DEPTH2-NEXT: Dependences:
; DEPTH2-NEXT: Run-time memory checks:
; DEPTH2-NEXT: Check 0:
; DEPTH2-NEXT: Comparing group GRP0:
; DEPTH2-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; DEPTH2-NEXT: Against group GRP1:
; DEPTH2-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; DEPTH2-NEXT: Grouped accesses:
; DEPTH2-NEXT: Group GRP0:
; DEPTH2-NEXT: (Low: %Dest High: (400 + %Dest))
; DEPTH2-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; DEPTH2-NEXT: Group GRP1:
; DEPTH2-NEXT: (Low: %Preds High: (400 + %Preds))
; DEPTH2-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; DEPTH2-NEXT: Generated run-time checks are incomplete
; DEPTH2-EMPTY:
; DEPTH2-NEXT: Non vectorizable stores to invariant address were not found in loop.
; DEPTH2-NEXT: SCEV assumptions:
; DEPTH2-EMPTY:
; DEPTH2-NEXT: Expressions re-written:
;
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
}
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) {
; FULLDEPTH-LABEL: 'forked_ptrs_add_sub_offset'
; FULLDEPTH-NEXT: for.body:
; FULLDEPTH-NEXT: Memory dependences are safe with run-time checks
; FULLDEPTH-NEXT: Dependences:
; FULLDEPTH-NEXT: Run-time memory checks:
; FULLDEPTH-NEXT: Check 0:
; FULLDEPTH-NEXT: Comparing group GRP0:
; FULLDEPTH-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; FULLDEPTH-NEXT: Against group GRP1:
; FULLDEPTH-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; FULLDEPTH-NEXT: Check 1:
; FULLDEPTH-NEXT: Comparing group GRP0:
; FULLDEPTH-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; FULLDEPTH-NEXT: Against group GRP2:
; FULLDEPTH-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset
; FULLDEPTH-NEXT: %arrayidx3 = getelementptr inbounds float, ptr %Base, i64 %offset
; FULLDEPTH-NEXT: Grouped accesses:
; FULLDEPTH-NEXT: Group GRP0:
; FULLDEPTH-NEXT: (Low: %Dest High: (400 + %Dest))
; FULLDEPTH-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; FULLDEPTH-NEXT: Group GRP1:
; FULLDEPTH-NEXT: (Low: %Preds High: (400 + %Preds))
; FULLDEPTH-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; FULLDEPTH-NEXT: Group GRP2:
; FULLDEPTH-NEXT: (Low: ((4 * %to_add) + (-4 * %to_sub) + %Base) High: (404 + (4 * %to_add) + (-4 * %to_sub) + %Base))
; FULLDEPTH-NEXT: Member: {(4 + (4 * %to_add) + (-4 * %to_sub) + %Base),+,4}<%for.body>
; FULLDEPTH-NEXT: Member: {((4 * %to_add) + (-4 * %to_sub) + %Base),+,4}<%for.body>
; FULLDEPTH-EMPTY:
; FULLDEPTH-NEXT: Non vectorizable stores to invariant address were not found in loop.
; FULLDEPTH-NEXT: SCEV assumptions:
; FULLDEPTH-EMPTY:
; FULLDEPTH-NEXT: Expressions re-written:
;
; DEPTH2-LABEL: 'forked_ptrs_add_sub_offset'
; DEPTH2-NEXT: for.body:
; DEPTH2-NEXT: Report: cannot identify array bounds
; DEPTH2-NEXT: Dependences:
; DEPTH2-NEXT: Run-time memory checks:
; DEPTH2-NEXT: Check 0:
; DEPTH2-NEXT: Comparing group GRP0:
; DEPTH2-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; DEPTH2-NEXT: Against group GRP1:
; DEPTH2-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; DEPTH2-NEXT: Grouped accesses:
; DEPTH2-NEXT: Group GRP0:
; DEPTH2-NEXT: (Low: %Dest High: (400 + %Dest))
; DEPTH2-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; DEPTH2-NEXT: Group GRP1:
; DEPTH2-NEXT: (Low: %Preds High: (400 + %Preds))
; DEPTH2-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; DEPTH2-NEXT: Generated run-time checks are incomplete
; DEPTH2-EMPTY:
; DEPTH2-NEXT: Non vectorizable stores to invariant address were not found in loop.
; DEPTH2-NEXT: SCEV assumptions:
; DEPTH2-EMPTY:
; DEPTH2-NEXT: Expressions re-written:
;
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.
define dso_local void @forked_ptrs_mul_by_offset(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds, i64 %extra_offset) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
}
;;;; 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(ptr nocapture readonly %Base, ptr nocapture %Dest, ptr nocapture readonly %Preds) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %arrayidx5 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
}
;;;; 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) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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.
define dso_local void @forked_ptrs_two_forks_gep(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
%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
define void @forked_ptrs_two_select(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture readonly %Base3, ptr %Dest) {
; CHECK-LABEL: '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-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%loop>
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%loop>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
define void @forked_ptrs_too_many_gep_ops(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds float, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (400 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (400 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
define void @forked_ptrs_vector_gep(ptr nocapture readonly %Base1, ptr nocapture readonly %Base2, ptr nocapture %Dest, ptr nocapture readonly %Preds) {
; CHECK-LABEL: '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: Check 0:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %1 = getelementptr inbounds <4 x float>, ptr %Dest, i64 %indvars.iv
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Dest High: (1552 + %Dest))
; CHECK-NEXT: Member: {%Dest,+,64}<nuw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %Preds High: (388 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,16}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
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
}
;;; 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) {
; CHECK-LABEL: '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 GRP0:
; CHECK-NEXT: ptr %Base1
; CHECK-NEXT: Against group GRP1:
; CHECK-NEXT: %fptr = getelementptr inbounds double, ptr %Base2, i64 %sel
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Base1 High: (8 + %Base1))
; CHECK-NEXT: Member: %Base1
; CHECK-NEXT: Group GRP1:
; 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>
;
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
}
define void @forked_ptrs_with_different_base(ptr nocapture readonly %Preds, ptr nocapture %a, ptr nocapture %b, ptr nocapture readonly %c) {
; CHECK-LABEL: 'forked_ptrs_with_different_base'
; 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 GRP0:
; CHECK-NEXT: %arrayidx7 = getelementptr inbounds double, ptr %.sink, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 1:
; CHECK-NEXT: Comparing group GRP0:
; CHECK-NEXT: %arrayidx7 = getelementptr inbounds double, ptr %.sink, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %arrayidx5 = getelementptr inbounds double, ptr %0, i64 %indvars.iv
; CHECK-NEXT: Check 2:
; CHECK-NEXT: Comparing group GRP1:
; CHECK-NEXT: %arrayidx7 = getelementptr inbounds double, ptr %.sink, i64 %indvars.iv
; CHECK-NEXT: Against group GRP2:
; CHECK-NEXT: %arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
; CHECK-NEXT: Check 3:
; CHECK-NEXT: Comparing group GRP1:
; CHECK-NEXT: %arrayidx7 = getelementptr inbounds double, ptr %.sink, i64 %indvars.iv
; CHECK-NEXT: Against group GRP3:
; CHECK-NEXT: %arrayidx5 = getelementptr inbounds double, ptr %0, i64 %indvars.iv
; CHECK-NEXT: Grouped accesses:
; CHECK-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %1 High: (63992 + %1))
; CHECK-NEXT: Member: {%1,+,8}<nw><%for.body>
; CHECK-NEXT: Group GRP1:
; CHECK-NEXT: (Low: %2 High: (63992 + %2))
; CHECK-NEXT: Member: {%2,+,8}<nw><%for.body>
; CHECK-NEXT: Group GRP2:
; CHECK-NEXT: (Low: %Preds High: (31996 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Group GRP3:
; CHECK-NEXT: (Low: %0 High: (63992 + %0))
; CHECK-NEXT: Member: {%0,+,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:
;
entry:
%0 = load ptr, ptr %c, align 64
%1 = load ptr, ptr %a, align 64
%2 = load ptr, ptr %b, align 64
br label %for.body
for.cond.cleanup: ; preds = %for.inc
ret void
for.body: ; preds = %entry, %for.inc
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ]
%arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
%3 = load i32, ptr %arrayidx, align 4
%cmp2.not = icmp eq i32 %3, 0
br i1 %cmp2.not, label %if.else, label %if.then
if.then: ; preds = %for.body
%arrayidx5 = getelementptr inbounds double, ptr %0, i64 %indvars.iv
%4 = load double, ptr %arrayidx5, align 8
%add = fadd fast double %4, 1.000000e+00
br label %for.inc
if.else: ; preds = %for.body
%5 = mul nuw nsw i64 %indvars.iv, %indvars.iv
%6 = trunc i64 %5 to i32
%conv8 = sitofp i32 %6 to double
br label %for.inc
for.inc: ; preds = %if.then, %if.else
%.sink = phi ptr [ %1, %if.then ], [ %2, %if.else ]
%add.sink = phi double [ %add, %if.then ], [ %conv8, %if.else ]
%arrayidx7 = getelementptr inbounds double, ptr %.sink, i64 %indvars.iv
store double %add.sink, ptr %arrayidx7, align 8
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, 7999
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
; Negative test: the operator number of PhiNode is not 2.
define void @forked_ptrs_with_different_base3(ptr nocapture readonly %Preds, ptr nocapture %a, ptr nocapture %b, ptr nocapture readonly %c) {
; CHECK-LABEL: 'forked_ptrs_with_different_base3'
; 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-NEXT: Group GRP0:
; CHECK-NEXT: (Low: %Preds High: (31996 + %Preds))
; CHECK-NEXT: Member: {%Preds,+,4}<nuw><%for.body>
; CHECK-NEXT: Generated run-time checks are incomplete
; 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:
%ld.c = load ptr, ptr %c, align 64
%ld.a = load ptr, ptr %a, align 64
%ld.b = load ptr, ptr %b, align 64
br label %for.body
for.body: ; preds = %entry, %for.inc
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ]
%arrayidx = getelementptr inbounds i32, ptr %Preds, i64 %indvars.iv
%ld.preds = load i32, ptr %arrayidx, align 4
switch i32 %ld.preds, label %if.else [
i32 0, label %if.br0
i32 1, label %if.br1
]
if.br0: ; preds = %for.body
br label %for.inc
if.br1: ; preds = %for.body
br label %for.inc
if.else: ; preds = %for.body
br label %for.inc
for.inc: ; preds = %if.br1, %if.br0
%.sink = phi ptr [ %ld.a, %if.br0 ], [ %ld.b, %if.br1 ], [ %ld.c, %if.else ]
%arrayidx7 = getelementptr inbounds double, ptr %.sink, i64 %indvars.iv
store double 1.000000e+00, ptr %arrayidx7, align 8
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, 7999
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
for.cond.cleanup: ; preds = %for.inc
ret void
}