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Segmentation fault #488

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Finn-Sueberkrueb opened this issue Oct 5, 2022 · 6 comments · Fixed by #502
Closed

Segmentation fault #488

Finn-Sueberkrueb opened this issue Oct 5, 2022 · 6 comments · Fixed by #502
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@vchuravy
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gc garbage collection

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@Finn-Sueberkrueb
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Thank you very much for this wonderful package!

The following minimal example.

using Enzyme;

function objective!(x, loss, R)
    for i in 1:1000
        #y = R * x
        y = zeros(3)
        y[1] = R[1,1] * x[1] + R[1,2] * x[2] + R[1,3] * x[3]

        loss[] = y[1]
    end
    return nothing
end;

x = zeros(3)
R = [1.0 0.0 0.0
    0.0 1.0 0.0
    0.0 0.0 1.0]
loss = Ref(0.0)
dloss = Ref(1.0)

for i in 1:1000
    loss[] = 0.0
    dloss[] = 1.0
    autodiff(Reverse, objective!, Duplicated(x, zero(x)), Duplicated(loss, dloss), R)
end

Raises the following segmentation fault. The error occurs after varying number of AutoDiff calls.

signal (11): Segmentation fault: 11
in expression starting at /Users/src/minimal_example.jl:26
gc_mark_loop at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
_jl_gc_collect at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_gc_collect at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_gc_pool_alloc_noinline at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_gc_alloc at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
_new_array_ at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
_new_array at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_alloc_array_1d at /Applications/Julia-1.8.app/Contents/Resources/julia/lib/julia/libjulia-internal.1.8.dylib (unknown line)
Allocations: 56871453 (Pool: 56818646; Big: 52807); GC: 61

Version Info

Julia Version 1.8.0
Commit 5544a0fab76 (2022-08-17 13:38 UTC)
Platform Info:
  OS: macOS (arm64-apple-darwin21.3.0)
  CPU: 10 × Apple M1 Max
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, apple-m1)
  Threads: 1 on 8 virtual cores

[7da242da] Enzyme v0.10.6 `https://github.com/EnzymeAD/Enzyme.jl.git#main`
@Finn-Sueberkrueb
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Error on a x86 machine

signal (11): Segmentation fault
in expression starting at /home/user/minimal_example.jl:24
page_metadata at /buildworker/worker/package_linux64/build/src/gc.h:457 [inlined]
gc_setmark_pool at /buildworker/worker/package_linux64/build/src/gc.c:806 [inlined]
gc_setmark at /buildworker/worker/package_linux64/build/src/gc.c:813 [inlined]
gc_mark_loop at /buildworker/worker/package_linux64/build/src/gc.c:2714
_jl_gc_collect at /buildworker/worker/package_linux64/build/src/gc.c:3039
jl_gc_collect at /buildworker/worker/package_linux64/build/src/gc.c:3248
maybe_collect at /buildworker/worker/package_linux64/build/src/gc.c:882 [inlined]
jl_gc_pool_alloc at /buildworker/worker/package_linux64/build/src/gc.c:1209
jl_gc_alloc_ at /buildworker/worker/package_linux64/build/src/julia_internal.h:339 [inlined]
jl_gc_alloc at /buildworker/worker/package_linux64/build/src/gc.c:3290
_new_array_ at /buildworker/worker/package_linux64/build/src/array.c:127 [inlined]
_new_array at /buildworker/worker/package_linux64/build/src/array.c:193 [inlined]
jl_alloc_array_1d at /buildworker/worker/package_linux64/build/src/array.c:441
unknown function (ip: 0x7f0fe80984cb)
macro expansion at /home/user/.julia/packages/Enzyme/2K2vv/src/compiler.jl:5699 [inlined]
enzyme_call at /home/user/.julia/packages/Enzyme/2K2vv/src/compiler.jl:5461
unknown function (ip: 0x7f0fe80b4b1a)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1788 [inlined]
do_apply at /buildworker/worker/package_linux64/build/src/builtins.c:713
CombinedAdjointThunk at /home/user/.julia/packages/Enzyme/2K2vv/src/compiler.jl:5438
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1788 [inlined]
do_apply at /buildworker/worker/package_linux64/build/src/builtins.c:713
autodiff at /home/user/.julia/packages/Enzyme/2K2vv/src/Enzyme.jl:302
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1788 [inlined]
do_apply at /buildworker/worker/package_linux64/build/src/builtins.c:713
autodiff at /home/user/.julia/packages/Enzyme/2K2vv/src/Enzyme.jl:330
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
top-level scope at /home/user/minimal_example.jl:27
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:876
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:830
jl_toplevel_eval_in at /buildworker/worker/package_linux64/build/src/toplevel.c:944
eval at ./boot.jl:373 [inlined]
include_string at ./loading.jl:1196
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
_include at ./loading.jl:1253
include at ./Base.jl:418
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
exec_options at ./client.jl:292
_start at ./client.jl:495
jfptr__start_38732.clone_1 at /opt/julia-1.7.2/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1788 [inlined]
true_main at /buildworker/worker/package_linux64/build/src/jlapi.c:559
jl_repl_entrypoint at /buildworker/worker/package_linux64/build/src/jlapi.c:701
main at julia (unknown line)
__libc_start_main at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
unknown function (ip: 0x400808)
Allocations: 28616321 (Pool: 28603117; Big: 13204); GC: 33

Version Info

Julia Version 1.7.2
Commit bf53498635 (2022-02-06 15:21 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake)

@wsmoses wsmoses added the gc garbage collection label Oct 5, 2022
@wsmoses
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wsmoses commented Oct 5, 2022

@vchuravy this seems to occur, though nondeterminstically, and I'd guess GC related since we do cache the (shadow) julia object in the loop

@wsmoses
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wsmoses commented Oct 6, 2022 

mod = ; ModuleID = 'text'
source_filename = "text"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-linux-gnu"

; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.declare(metadata, metadata, metadata) #0

; Function Attrs: noreturn
declare void @ijl_bounds_error_ints({} addrspace(12)*, i64*, i64) local_unnamed_addr #1

define private void @julia_objective__1863_inner.1({} addrspace(10)* nocapture nonnull readonly align 16 dereferenceable(40) %0, {} addrspace(10)* nocapture nofree nonnull writeonly align 8 dereferenceable(8) %1, {} addrspace(10)* nocapture nonnull readonly align 16 dereferenceable(40) %2) local_unnamed_addr #2 !dbg !5 {
entry:
  call void @llvm.dbg.value(metadata {} addrspace(10)* null, metadata !22, metadata !DIExpression(DW_OP_deref)), !dbg !23
  call void @llvm.dbg.value(metadata {} addrspace(10)* null, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !23
  call void @llvm.dbg.value(metadata {} addrspace(10)* null, metadata !20, metadata !DIExpression(DW_OP_deref)), !dbg !23
  call void @llvm.dbg.value(metadata {} addrspace(10)* %0, metadata !20, metadata !DIExpression(DW_OP_deref)), !dbg !23
  call void @llvm.dbg.value(metadata {} addrspace(10)* %1, metadata !21, metadata !DIExpression(DW_OP_deref)), !dbg !23
  call void @llvm.dbg.value(metadata {} addrspace(10)* %2, metadata !22, metadata !DIExpression(DW_OP_deref)), !dbg !23
  %3 = bitcast {} addrspace(10)* %2 to double addrspace(13)* addrspace(10)*
  %4 = addrspacecast double addrspace(13)* addrspace(10)* %3 to double addrspace(13)* addrspace(11)*
  %5 = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %4, align 16
  %6 = bitcast {} addrspace(10)* %0 to double addrspace(13)* addrspace(10)*
  %7 = addrspacecast double addrspace(13)* addrspace(10)* %6 to double addrspace(13)* addrspace(11)*
  %8 = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %7, align 16
  %9 = bitcast {} addrspace(10)* %1 to double addrspace(10)*
  br label %L2.i, !dbg !25

L2.i:                                             ; preds = %idxend.i, %entry
  %value_phi.i = phi i64 [ 1, %entry ], [ %28, %idxend.i ]
  %10 = call noalias nonnull {} addrspace(10)* inttoptr (i64 140080130477952 to {} addrspace(10)* ({} addrspace(10)*, i64)*)({} addrspace(10)* noundef addrspacecast ({}* inttoptr (i64 140079781262464 to {}*) to {} addrspace(10)*), i64 noundef 3), !dbg !26
  %11 = bitcast {} addrspace(10)* %10 to { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(10)*, !dbg !37
  %12 = addrspacecast { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(10)* %11 to { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(11)*, !dbg !37
  %13 = getelementptr inbounds { i8 addrspace(13)*, i64, i16, i16, i32 }, { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(11)* %12, i64 0, i32 1, !dbg !37
  %14 = load i64, i64 addrspace(11)* %13, align 8, !dbg !37, !tbaa !49, !range !54
  %.not.not = icmp eq i64 %14, 0, !dbg !55
  br i1 %.not.not, label %oob.i, label %idxend.i, !dbg !66

oob.i:                                            ; preds = %L2.i
  %.phi.trans.insert = bitcast {} addrspace(10)* %10 to double addrspace(13)* addrspace(10)*
  %.phi.trans.insert8 = addrspacecast double addrspace(13)* addrspace(10)* %.phi.trans.insert to double addrspace(13)* addrspace(11)*
  %.pre = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %.phi.trans.insert8, align 8, !dbg !67, !tbaa !70
  %15 = load double, double addrspace(13)* %5, align 8, !dbg !72, !tbaa !74
  %16 = load double, double addrspace(13)* %8, align 8, !dbg !77, !tbaa !74
  %17 = fmul double %15, %16, !dbg !78
  store double %17, double addrspace(13)* %.pre, align 8, !dbg !67, !tbaa !74
  %18 = alloca i64, align 8, !dbg !81
  store i64 1, i64* %18, align 8, !dbg !81
  %19 = addrspacecast {} addrspace(10)* %10 to {} addrspace(12)*, !dbg !81
  call void @ijl_bounds_error_ints({} addrspace(12)* %19, i64* noundef nonnull align 8 %18, i64 noundef 1) #1, !dbg !81
  unreachable, !dbg !81

idxend.i:                                         ; preds = %L2.i
  %20 = bitcast {} addrspace(10)* %10 to double addrspace(13)* addrspace(10)*
  %21 = addrspacecast double addrspace(13)* addrspace(10)* %20 to double addrspace(13)* addrspace(11)*
  %22 = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %21, align 8, !tbaa !70, !nonnull !4
  %23 = bitcast double addrspace(13)* %22 to i8 addrspace(13)*, !dbg !83
  %24 = shl nuw i64 %14, 3, !dbg !83
  call void @llvm.memset.p13i8.i64(i8 addrspace(13)* noundef nonnull align 8 %23, i8 noundef 0, i64 %24, i1 noundef false), !dbg !84
  %25 = load double, double addrspace(13)* %5, align 8, !dbg !72, !tbaa !74
  %26 = load double, double addrspace(13)* %8, align 8, !dbg !77, !tbaa !74
  %27 = fmul double %25, %26, !dbg !78
  store double %27, double addrspace(13)* %22, align 8, !dbg !67, !tbaa !74
  store double %27, double addrspace(10)* %9, align 8, !dbg !86, !tbaa !92
  %.not5 = icmp eq i64 %value_phi.i, 1000, !dbg !95
  %28 = add nuw nsw i64 %value_phi.i, 1, !dbg !100
  br i1 %.not5, label %julia_objective__1863_inner.exit, label %L2.i, !dbg !101

julia_objective__1863_inner.exit:                 ; preds = %idxend.i
  ret void, !dbg !102
}

; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #3

; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #3

; Function Attrs: nofree nosync nounwind willreturn
declare i8* @llvm.stacksave() #4

; Function Attrs: nofree nosync nounwind willreturn
declare void @llvm.stackrestore(i8*) #4

; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare void @llvm.dbg.value(metadata, metadata, metadata) #0

; Function Attrs: argmemonly nofree nounwind willreturn writeonly
declare void @llvm.memset.p13i8.i64(i8 addrspace(13)* nocapture writeonly, i8, i64, i1 immarg) #5

declare {} addrspace(10)* @ijl_box_int64(i64)

declare {} addrspace(10)* @jl_f_apply_type({} addrspace(10)*, {} addrspace(10)**, i32)

declare {} addrspace(10)* @jl_gc_alloc_typed(i8*, i64, {} addrspace(10)*)

declare {} addrspace(10)* @julia.gc_alloc_obj({}**, i64, {} addrspace(10)*)

; Function Attrs: argmemonly nofree nounwind willreturn writeonly
declare void @llvm.memset.p10i8.i64(i8 addrspace(10)* nocapture writeonly, i8, i64, i1 immarg) #5

declare void @julia.write_barrier({} addrspace(10)*, ...)

; Function Attrs: argmemonly nofree nounwind willreturn writeonly
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #5

declare void @free(i8*)

; Function Attrs: alwaysinline
define void @diffejulia_objective__1863_inner_1wrap({} addrspace(10)* %0, {} addrspace(10)* %1, {} addrspace(10)* %2, {} addrspace(10)* %3, {} addrspace(10)* %4) #6 !dbg !103 {
entry:
  %gcframe22 = alloca [4 x {} addrspace(10)*], align 16
  %gcframe22.sub = getelementptr inbounds [4 x {} addrspace(10)*], [4 x {} addrspace(10)*]* %gcframe22, i64 0, i64 0
  %5 = bitcast [4 x {} addrspace(10)*]* %gcframe22 to i8*
  call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 16 dereferenceable(32) %5, i8 0, i32 32, i1 false), !tbaa !109
  %6 = getelementptr inbounds [4 x {} addrspace(10)*], [4 x {} addrspace(10)*]* %gcframe22, i64 0, i64 2
  %7 = alloca [8000 x i8], align 16
  %.sub = getelementptr inbounds [8000 x i8], [8000 x i8]* %7, i64 0, i64 0
  %thread_ptr = call i8* asm "movq %fs:0, $0", "=r"() #9
  %ppgcstack_i8 = getelementptr i8, i8* %thread_ptr, i64 -8
  %ppgcstack = bitcast i8* %ppgcstack_i8 to {}****
  %pgcstack = load {}***, {}**** %ppgcstack, align 8
  %8 = bitcast [4 x {} addrspace(10)*]* %gcframe22 to i64*
  store i64 8, i64* %8, align 16, !tbaa !109
  %9 = getelementptr inbounds [4 x {} addrspace(10)*], [4 x {} addrspace(10)*]* %gcframe22, i64 0, i64 1
  %10 = bitcast {} addrspace(10)** %9 to {}***
  %11 = load {}**, {}*** %pgcstack, align 8
  store {}** %11, {}*** %10, align 8, !tbaa !109
  %12 = bitcast {}*** %pgcstack to {} addrspace(10)***
  store {} addrspace(10)** %gcframe22.sub, {} addrspace(10)*** %12, align 8
  %13 = bitcast {} addrspace(10)* %4 to double addrspace(13)* addrspace(10)*
  %14 = addrspacecast double addrspace(13)* addrspace(10)* %13 to double addrspace(13)* addrspace(11)*
  %15 = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %14, align 16
  %"'ipc.i" = bitcast {} addrspace(10)* %1 to double addrspace(13)* addrspace(10)*
  %16 = bitcast {} addrspace(10)* %0 to double addrspace(13)* addrspace(10)*
  %"'ipc4.i" = addrspacecast double addrspace(13)* addrspace(10)* %"'ipc.i" to double addrspace(13)* addrspace(11)*
  %17 = addrspacecast double addrspace(13)* addrspace(10)* %16 to double addrspace(13)* addrspace(11)*
  %"'ipl.i" = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %"'ipc4.i", align 16
  %18 = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %17, align 16
  %"'ipc7.i" = bitcast {} addrspace(10)* %3 to double addrspace(10)*
  %19 = bitcast {} addrspace(10)* %2 to double addrspace(10)*
  call void @llvm.lifetime.start.p0i8(i64 8000, i8* nonnull %.sub)
  call void @llvm.memset.p0i8.i64(i8* noundef nonnull align 16 dereferenceable(8000) %.sub, i8 0, i64 8000, i1 false), !dbg !111
  %_malloccache.i = bitcast [8000 x i8]* %7 to {} addrspace(10)**, !dbg !111
  %20 = call noalias nonnull dereferenceable(8000) dereferenceable_or_null(8000) i8* inttoptr (i64 140080140341536 to i8* (i64)*)(i64 8000), !dbg !111
  call void @llvm.memset.p0i8.i64(i8* noundef nonnull align 1 dereferenceable(8000) %20, i8 0, i64 8000, i1 false), !dbg !111
  %_malloccache12.i = bitcast i8* %20 to double*, !dbg !111
  %21 = call noalias nonnull dereferenceable(8000) dereferenceable_or_null(8000) i8* inttoptr (i64 140080140341536 to i8* (i64)*)(i64 8000), !dbg !111
  call void @llvm.memset.p0i8.i64(i8* noundef nonnull align 1 dereferenceable(8000) %21, i8 0, i64 8000, i1 false), !dbg !111
  %_malloccache18.i = bitcast i8* %21 to i64*, !dbg !111
  br label %L2.i.i, !dbg !111

L2.i.i:                                           ; preds = %idxend.i.i, %entry
  %iv.i = phi i64 [ %iv.next.i, %idxend.i.i ], [ 0, %entry ]
  %iv.next.i = add nuw nsw i64 %iv.i, 1, !dbg !113
  %22 = call noalias nonnull {} addrspace(10)* inttoptr (i64 140080130477952 to {} addrspace(10)* ({} addrspace(10)*, i64)*)({} addrspace(10)* noundef addrspacecast ({}* inttoptr (i64 140079781262464 to {}*) to {} addrspace(10)*), i64 noundef 3) #10, !dbg !113
  %23 = getelementptr inbounds [4 x {} addrspace(10)*], [4 x {} addrspace(10)*]* %gcframe22, i64 0, i64 3
  store {} addrspace(10)* %22, {} addrspace(10)** %23, align 8
  %24 = call {} addrspace(10)* inttoptr (i64 140080130477952 to {} addrspace(10)* ({} addrspace(10)*, i64)*)({} addrspace(10)* addrspacecast ({}* inttoptr (i64 140079781262464 to {}*) to {} addrspace(10)*), i64 3), !dbg !113
  %25 = getelementptr inbounds {} addrspace(10)*, {} addrspace(10)** %_malloccache.i, i64 %iv.i, !dbg !113
  store {} addrspace(10)* %24, {} addrspace(10)** %6, align 16
  store {} addrspace(10)* %24, {} addrspace(10)** %25, align 8, !dbg !113, !invariant.group !119
  %26 = bitcast {} addrspace(10)* %24 to i8 addrspace(13)* addrspace(10)*, !dbg !113
  %27 = load i8 addrspace(13)*, i8 addrspace(13)* addrspace(10)* %26, align 8, !dbg !113
  call void @llvm.memset.p13i8.i64(i8 addrspace(13)* noundef align 1 dereferenceable(24) %27, i8 0, i64 24, i1 false), !dbg !113
  %28 = bitcast {} addrspace(10)* %22 to { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(10)*, !dbg !120
  %29 = addrspacecast { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(10)* %28 to { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(11)*, !dbg !120
  %30 = getelementptr inbounds { i8 addrspace(13)*, i64, i16, i16, i32 }, { i8 addrspace(13)*, i64, i16, i16, i32 } addrspace(11)* %29, i64 0, i32 1, !dbg !120
  %31 = load i64, i64 addrspace(11)* %30, align 8, !dbg !120, !tbaa !49, !range !54
  %.not.not.i = icmp eq i64 %31, 0, !dbg !126
  br i1 %.not.not.i, label %oob.i.i, label %idxend.i.i, !dbg !130

oob.i.i:                                          ; preds = %L2.i.i
  %.phi.trans.insert.i = bitcast {} addrspace(10)* %22 to double addrspace(13)* addrspace(10)*
  %.phi.trans.insert8.i = addrspacecast double addrspace(13)* addrspace(10)* %.phi.trans.insert.i to double addrspace(13)* addrspace(11)*
  %.pre.i = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %.phi.trans.insert8.i, align 8, !dbg !131, !tbaa !70
  %32 = load double, double addrspace(13)* %15, align 8, !dbg !133, !tbaa !74
  %33 = load double, double addrspace(13)* %18, align 8, !dbg !134, !tbaa !74
  %34 = fmul double %32, %33, !dbg !135
  store double %34, double addrspace(13)* %.pre.i, align 8, !dbg !131, !tbaa !74
  %35 = alloca i64, align 8, !dbg !136
  store i64 1, i64* %35, align 8, !dbg !136
  %36 = addrspacecast {} addrspace(10)* %22 to {} addrspace(12)*, !dbg !136
  call void @llvm.lifetime.end.p0i8(i64 8000, i8* nonnull %.sub)
  call void @ijl_bounds_error_ints({} addrspace(12)* %36, i64* noundef nonnull align 8 %35, i64 noundef 1) #11, !dbg !136
  unreachable

idxend.i.i:                                       ; preds = %L2.i.i
  %37 = bitcast {} addrspace(10)* %22 to double addrspace(13)* addrspace(10)*
  %38 = addrspacecast double addrspace(13)* addrspace(10)* %37 to double addrspace(13)* addrspace(11)*
  %39 = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %38, align 8, !tbaa !70, !nonnull !4
  %40 = bitcast double addrspace(13)* %39 to i8 addrspace(13)*, !dbg !138
  %41 = shl nuw i64 %31, 3, !dbg !138
  call void @llvm.memset.p13i8.i64(i8 addrspace(13)* noundef nonnull align 8 %40, i8 noundef 0, i64 %41, i1 noundef false) #10, !dbg !139
  %42 = load double, double addrspace(13)* %15, align 8, !dbg !133, !tbaa !74
  %43 = load double, double addrspace(13)* %18, align 8, !dbg !134, !tbaa !74
  %44 = fmul double %42, %43, !dbg !135
  store double %44, double addrspace(13)* %39, align 8, !dbg !131, !tbaa !74, !alias.scope !141, !noalias !144
  %45 = getelementptr inbounds i64, i64* %_malloccache18.i, i64 %iv.i, !dbg !146
  store i64 %41, i64* %45, align 8, !dbg !146, !invariant.group !148
  %46 = getelementptr inbounds double, double* %_malloccache12.i, i64 %iv.i, !dbg !146
  store double %42, double* %46, align 8, !dbg !146, !tbaa !74, !invariant.group !149
  store double %44, double addrspace(10)* %19, align 8, !dbg !146, !tbaa !92, !alias.scope !141, !noalias !144
  %.not5.i = icmp eq i64 %iv.next.i, 1000, !dbg !150
  br i1 %.not5.i, label %invertidxend.i.i, label %L2.i.i, !dbg !153

invertidxend.i.i:                                 ; preds = %idxend.i.i, %invertidxend.i.i
  %"iv'ac.i.0" = phi i64 [ %60, %invertidxend.i.i ], [ 999, %idxend.i.i ]
  %47 = load double, double addrspace(10)* %"'ipc7.i", align 8
  store double 0.000000e+00, double addrspace(10)* %"'ipc7.i", align 8, !dbg !146, !tbaa !92, !alias.scope !144, !noalias !141
  %48 = getelementptr inbounds {} addrspace(10)*, {} addrspace(10)** %_malloccache.i, i64 %"iv'ac.i.0"
  %49 = bitcast {} addrspace(10)** %48 to double addrspace(13)* addrspace(10)**
  %50 = load double addrspace(13)* addrspace(10)*, double addrspace(13)* addrspace(10)** %49, align 8
  %"'ipc9_unwrap.i" = addrspacecast double addrspace(13)* addrspace(10)* %50 to double addrspace(13)* addrspace(11)*
  %"'il_phi3_unwrap.i" = load double addrspace(13)*, double addrspace(13)* addrspace(11)* %"'ipc9_unwrap.i", align 8, !tbaa !70
  %51 = load double, double addrspace(13)* %"'il_phi3_unwrap.i", align 8
  store double 0.000000e+00, double addrspace(13)* %"'il_phi3_unwrap.i", align 8, !dbg !131, !tbaa !74, !alias.scope !144, !noalias !141
  %52 = fadd fast double %51, %47
  %53 = getelementptr inbounds double, double* %_malloccache12.i, i64 %"iv'ac.i.0"
  %54 = load double, double* %53, align 8, !dbg !133, !tbaa !74, !invariant.group !149
  %m1diffe.i = fmul fast double %54, %52
  %55 = load double, double addrspace(13)* %"'ipl.i", align 8, !dbg !134, !tbaa !74, !alias.scope !144, !noalias !141
  %56 = fadd fast double %55, %m1diffe.i
  store double %56, double addrspace(13)* %"'ipl.i", align 8, !dbg !134, !tbaa !74, !alias.scope !144, !noalias !141
  %57 = getelementptr inbounds i64, i64* %_malloccache18.i, i64 %"iv'ac.i.0", !dbg !139
  %58 = load i64, i64* %57, align 8, !dbg !139, !invariant.group !148
  %"'ipc15_unwrap.i" = bitcast double addrspace(13)* %"'il_phi3_unwrap.i" to i8 addrspace(13)*, !dbg !139
  call void @llvm.memset.p13i8.i64(i8 addrspace(13)* noundef nonnull align 8 %"'ipc15_unwrap.i", i8 noundef 0, i64 %58, i1 noundef false) #10, !dbg !139
  %59 = icmp eq i64 %"iv'ac.i.0", 0
  %60 = add nsw i64 %"iv'ac.i.0", -1
  br i1 %59, label %diffejulia_objective__1863_inner.1.exit, label %invertidxend.i.i

diffejulia_objective__1863_inner.1.exit:          ; preds = %invertidxend.i.i
  call void @llvm.lifetime.end.p0i8(i64 8000, i8* nonnull %.sub)
  call void @free(i8* nonnull %20), !dbg !154
  call void @free(i8* nonnull %21), !dbg !154
  %61 = load {} addrspace(10)*, {} addrspace(10)** %9, align 8, !tbaa !109
  %62 = bitcast {}*** %pgcstack to {} addrspace(10)**
  store {} addrspace(10)* %61, {} addrspace(10)** %62, align 8, !tbaa !109
  ret void
}

; Function Attrs: inaccessiblemem_or_argmemonly
declare void @ijl_gc_queue_root({} addrspace(10)*) #7

; Function Attrs: allocsize(1)
declare noalias nonnull {} addrspace(10)* @ijl_gc_pool_alloc(i8*, i32, i32) #8

; Function Attrs: allocsize(1)
declare noalias nonnull {} addrspace(10)* @ijl_gc_big_alloc(i8*, i64) #8

declare noalias nonnull {} addrspace(10)** @julia.new_gc_frame(i32)

declare void @julia.push_gc_frame({} addrspace(10)**, i32)

declare {} addrspace(10)** @julia.get_gc_frame_slot({} addrspace(10)**, i32)

declare void @julia.pop_gc_frame({} addrspace(10)**)

; Function Attrs: argmemonly nofree nounwind willreturn writeonly
declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1 immarg) #5

attributes #0 = { nofree nosync nounwind readnone speculatable willreturn }
attributes #1 = { noreturn }
attributes #2 = { "probe-stack"="inline-asm" }
attributes #3 = { argmemonly nofree nosync nounwind willreturn }
attributes #4 = { nofree nosync nounwind willreturn }
attributes #5 = { argmemonly nofree nounwind willreturn writeonly }
attributes #6 = { alwaysinline "probe-stack"="inline-asm" }
attributes #7 = { inaccessiblemem_or_argmemonly }
attributes #8 = { allocsize(1) }
attributes #9 = { nounwind }
attributes #10 = { mustprogress willreturn }
attributes #11 = { mustprogress noreturn willreturn }

!llvm.module.flags = !{!0, !1}
!llvm.dbg.cu = !{!2}

!0 = !{i32 2, !"Dwarf Version", i32 4}
!1 = !{i32 2, !"Debug Info Version", i32 3}
!2 = distinct !DICompileUnit(language: DW_LANG_Julia, file: !3, producer: "julia", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, nameTableKind: None)
!3 = !DIFile(filename: "/home/wmoses/git/Enzyme.jl/s.jl", directory: ".")
!4 = !{}
!5 = distinct !DISubprogram(name: "objective!", linkageName: "julia_objective!_1863", scope: null, file: !3, line: 5, type: !6, scopeLine: 5, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !18)
!6 = !DISubroutineType(types: !7)
!7 = !{!8, !9, !10, !15, !10}
!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "Nothing", align: 8, elements: !4, runtimeLang: DW_LANG_Julia, identifier: "140079777217184")
!9 = !DICompositeType(tag: DW_TAG_structure_type, name: "#objective!", align: 8, elements: !4, runtimeLang: DW_LANG_Julia, identifier: "140079998295888")
!10 = !DIDerivedType(tag: DW_TAG_typedef, name: "Array", baseType: !11)
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64, align: 64)
!12 = !DICompositeType(tag: DW_TAG_structure_type, name: "jl_value_t", file: !13, line: 71, align: 64, elements: !14)
!13 = !DIFile(filename: "julia.h", directory: "")
!14 = !{!11}
!15 = !DICompositeType(tag: DW_TAG_structure_type, name: "RefValue", size: 64, align: 64, elements: !16, runtimeLang: DW_LANG_Julia, identifier: "140079783828064")
!16 = !{!17}
!17 = !DIBasicType(name: "Float64", size: 64, encoding: DW_ATE_unsigned)
!18 = !{!19, !20, !21, !22}
!19 = !DILocalVariable(name: "#self#", arg: 1, scope: !5, file: !3, line: 5, type: !9)
!20 = !DILocalVariable(name: "x", arg: 2, scope: !5, file: !3, line: 5, type: !10)
!21 = !DILocalVariable(name: "loss", arg: 3, scope: !5, file: !3, line: 5, type: !15)
!22 = !DILocalVariable(name: "R", arg: 4, scope: !5, file: !3, line: 5, type: !10)
!23 = !DILocation(line: 0, scope: !5, inlinedAt: !24)
!24 = distinct !DILocation(line: 0, scope: !5)
!25 = !DILocation(line: 6, scope: !5, inlinedAt: !24)
!26 = !DILocation(line: 459, scope: !27, inlinedAt: !30)
!27 = distinct !DISubprogram(name: "Array;", linkageName: "Array", scope: !28, file: !28, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!28 = !DIFile(filename: "boot.jl", directory: ".")
!29 = !DISubroutineType(types: !4)
!30 = distinct !DILocation(line: 468, scope: !27, inlinedAt: !31)
!31 = distinct !DILocation(line: 588, scope: !32, inlinedAt: !34)
!32 = distinct !DISubprogram(name: "zeros;", linkageName: "zeros", scope: !33, file: !33, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!33 = !DIFile(filename: "array.jl", directory: ".")
!34 = distinct !DILocation(line: 585, scope: !32, inlinedAt: !35)
!35 = distinct !DILocation(line: 583, scope: !32, inlinedAt: !36)
!36 = distinct !DILocation(line: 8, scope: !5, inlinedAt: !24)
!37 = !DILocation(line: 151, scope: !38, inlinedAt: !39)
!38 = distinct !DISubprogram(name: "size;", linkageName: "size", scope: !33, file: !33, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!39 = distinct !DILocation(line: 95, scope: !40, inlinedAt: !42)
!40 = distinct !DISubprogram(name: "axes;", linkageName: "axes", scope: !41, file: !41, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!41 = !DIFile(filename: "abstractarray.jl", directory: ".")
!42 = distinct !DILocation(line: 116, scope: !43, inlinedAt: !44)
!43 = distinct !DISubprogram(name: "axes1;", linkageName: "axes1", scope: !41, file: !41, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!44 = distinct !DILocation(line: 285, scope: !45, inlinedAt: !46)
!45 = distinct !DISubprogram(name: "eachindex;", linkageName: "eachindex", scope: !41, file: !41, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!46 = distinct !DILocation(line: 352, scope: !47, inlinedAt: !48)
!47 = distinct !DISubprogram(name: "fill!;", linkageName: "fill!", scope: !33, file: !33, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!48 = distinct !DILocation(line: 589, scope: !32, inlinedAt: !34)
!49 = !{!50, !50, i64 0}
!50 = !{!"jtbaa_arraylen", !51, i64 0}
!51 = !{!"jtbaa_array", !52, i64 0}
!52 = !{!"jtbaa", !53, i64 0}
!53 = !{!"jtbaa"}
!54 = !{i64 0, i64 9223372036854775807}
!55 = !DILocation(line: 83, scope: !56, inlinedAt: !58)
!56 = distinct !DISubprogram(name: "<;", linkageName: "<", scope: !57, file: !57, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!57 = !DIFile(filename: "int.jl", directory: ".")
!58 = distinct !DILocation(line: 382, scope: !59, inlinedAt: !61)
!59 = distinct !DISubprogram(name: ">;", linkageName: ">", scope: !60, file: !60, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!60 = !DIFile(filename: "operators.jl", directory: ".")
!61 = distinct !DILocation(line: 654, scope: !62, inlinedAt: !64)
!62 = distinct !DISubprogram(name: "isempty;", linkageName: "isempty", scope: !63, file: !63, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!63 = !DIFile(filename: "range.jl", directory: ".")
!64 = distinct !DILocation(line: 879, scope: !65, inlinedAt: !46)
!65 = distinct !DISubprogram(name: "iterate;", linkageName: "iterate", scope: !63, file: !63, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!66 = !DILocation(line: 352, scope: !47, inlinedAt: !48)
!67 = !DILocation(line: 966, scope: !68, inlinedAt: !69)
!68 = distinct !DISubprogram(name: "setindex!;", linkageName: "setindex!", scope: !33, file: !33, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!69 = distinct !DILocation(line: 9, scope: !5, inlinedAt: !24)
!70 = !{!71, !71, i64 0}
!71 = !{!"jtbaa_arrayptr", !51, i64 0}
!72 = !DILocation(line: 925, scope: !73, inlinedAt: !69)
!73 = distinct !DISubprogram(name: "getindex;", linkageName: "getindex", scope: !33, file: !33, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!74 = !{!75, !75, i64 0}
!75 = !{!"jtbaa_arraybuf", !76, i64 0}
!76 = !{!"jtbaa_data", !52, i64 0}
!77 = !DILocation(line: 924, scope: !73, inlinedAt: !69)
!78 = !DILocation(line: 385, scope: !79, inlinedAt: !69)
!79 = distinct !DISubprogram(name: "*;", linkageName: "*", scope: !80, file: !80, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!80 = !DIFile(filename: "float.jl", directory: ".")
!81 = !DILocation(line: 924, scope: !73, inlinedAt: !82)
!82 = distinct !DILocation(line: 10, scope: !5, inlinedAt: !24)
!83 = !DILocation(line: 354, scope: !47, inlinedAt: !48)
!84 = !DILocation(line: 966, scope: !68, inlinedAt: !85)
!85 = distinct !DILocation(line: 353, scope: !47, inlinedAt: !48)
!86 = !DILocation(line: 39, scope: !87, inlinedAt: !89)
!87 = distinct !DISubprogram(name: "setproperty!;", linkageName: "setproperty!", scope: !88, file: !88, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!88 = !DIFile(filename: "Base.jl", directory: ".")
!89 = distinct !DILocation(line: 57, scope: !90, inlinedAt: !82)
!90 = distinct !DISubprogram(name: "setindex!;", linkageName: "setindex!", scope: !91, file: !91, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!91 = !DIFile(filename: "refvalue.jl", directory: ".")
!92 = !{!93, !93, i64 0}
!93 = !{!"jtbaa_mutab", !94, i64 0}
!94 = !{!"jtbaa_value", !76, i64 0}
!95 = !DILocation(line: 477, scope: !96, inlinedAt: !98)
!96 = distinct !DISubprogram(name: "==;", linkageName: "==", scope: !97, file: !97, type: !29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
!97 = !DIFile(filename: "promotion.jl", directory: ".")
!98 = distinct !DILocation(line: 883, scope: !65, inlinedAt: !99)
!99 = distinct !DILocation(line: 11, scope: !5, inlinedAt: !24)
!100 = !DILocation(line: 883, scope: !65, inlinedAt: !99)
!101 = !DILocation(line: 11, scope: !5, inlinedAt: !24)
!102 = !DILocation(line: 0, scope: !5)
!103 = distinct !DISubprogram(name: "objective!", linkageName: "julia_objective!_1863", scope: null, file: !3, line: 5, type: !6, scopeLine: 5, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !104)
!104 = !{!105, !106, !107, !108}
!105 = !DILocalVariable(name: "#self#", arg: 1, scope: !103, file: !3, line: 5, type: !9)
!106 = !DILocalVariable(name: "x", arg: 2, scope: !103, file: !3, line: 5, type: !10)
!107 = !DILocalVariable(name: "loss", arg: 3, scope: !103, file: !3, line: 5, type: !15)
!108 = !DILocalVariable(name: "R", arg: 4, scope: !103, file: !3, line: 5, type: !10)
!109 = !{!110, !110, i64 0}
!110 = !{!"jtbaa_gcframe", !52, i64 0}
!111 = !DILocation(line: 6, scope: !103, inlinedAt: !112)
!112 = distinct !DILocation(line: 0, scope: !103)
!113 = !DILocation(line: 459, scope: !27, inlinedAt: !114)
!114 = distinct !DILocation(line: 468, scope: !27, inlinedAt: !115)
!115 = distinct !DILocation(line: 588, scope: !32, inlinedAt: !116)
!116 = distinct !DILocation(line: 585, scope: !32, inlinedAt: !117)
!117 = distinct !DILocation(line: 583, scope: !32, inlinedAt: !118)
!118 = distinct !DILocation(line: 8, scope: !103, inlinedAt: !112)
!119 = distinct !{}
!120 = !DILocation(line: 151, scope: !38, inlinedAt: !121)
!121 = distinct !DILocation(line: 95, scope: !40, inlinedAt: !122)
!122 = distinct !DILocation(line: 116, scope: !43, inlinedAt: !123)
!123 = distinct !DILocation(line: 285, scope: !45, inlinedAt: !124)
!124 = distinct !DILocation(line: 352, scope: !47, inlinedAt: !125)
!125 = distinct !DILocation(line: 589, scope: !32, inlinedAt: !116)
!126 = !DILocation(line: 83, scope: !56, inlinedAt: !127)
!127 = distinct !DILocation(line: 382, scope: !59, inlinedAt: !128)
!128 = distinct !DILocation(line: 654, scope: !62, inlinedAt: !129)
!129 = distinct !DILocation(line: 879, scope: !65, inlinedAt: !124)
!130 = !DILocation(line: 352, scope: !47, inlinedAt: !125)
!131 = !DILocation(line: 966, scope: !68, inlinedAt: !132)
!132 = distinct !DILocation(line: 9, scope: !103, inlinedAt: !112)
!133 = !DILocation(line: 925, scope: !73, inlinedAt: !132)
!134 = !DILocation(line: 924, scope: !73, inlinedAt: !132)
!135 = !DILocation(line: 385, scope: !79, inlinedAt: !132)
!136 = !DILocation(line: 924, scope: !73, inlinedAt: !137)
!137 = distinct !DILocation(line: 10, scope: !103, inlinedAt: !112)
!138 = !DILocation(line: 354, scope: !47, inlinedAt: !125)
!139 = !DILocation(line: 966, scope: !68, inlinedAt: !140)
!140 = distinct !DILocation(line: 353, scope: !47, inlinedAt: !125)
!141 = !{!142}
!142 = distinct !{!142, !143, !"primal"}
!143 = distinct !{!143, !" diff: %"}
!144 = !{!145}
!145 = distinct !{!145, !143, !"shadow_0"}
!146 = !DILocation(line: 39, scope: !87, inlinedAt: !147)
!147 = distinct !DILocation(line: 57, scope: !90, inlinedAt: !137)
!148 = distinct !{}
!149 = distinct !{}
!150 = !DILocation(line: 477, scope: !96, inlinedAt: !151)
!151 = distinct !DILocation(line: 883, scope: !65, inlinedAt: !152)
!152 = distinct !DILocation(line: 11, scope: !103, inlinedAt: !112)
!153 = !DILocation(line: 11, scope: !103, inlinedAt: !112)
!154 = !DILocation(line: 0, scope: !103)

@wsmoses
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wsmoses commented Oct 6, 2022

Looks like we found a bug in Julia itself! JuliaLang/julia#47075 (comment) Working on a fix now. Will also make a workaround here.

@wsmoses
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wsmoses commented Oct 6, 2022

Check if this works around it for you? #494

@Finn-Sueberkrueb
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The error message has changed a bit now

signal (11): Segmentation fault: 11
in expression starting at REPL[7]:1
maybe_collect at /Users/julia/src/gc.c:918 [inlined]
jl_gc_big_alloc_inner at /Users/julia/src/gc.c:984 [inlined]
jl_gc_big_alloc_noinline at /Users/julia/src/gc.c:1023
jl_gc_alloc_ at /Users/julia/src/./julia_internal.h:438 [inlined]
jl_gc_alloc at /Users/julia/src/gc.c:3475 [inlined]
ijl_gc_alloc_typed at /Users/julia/src/gc.c:4078
Allocations: 21057107 (Pool: 21030147; Big: 26960); GC: 28

Julia Version 1.9.0-DEV.1527
Commit c1c2a69b82 (2022-10-06 14:23 UTC)
Platform Info: macOS (arm64-apple-darwin21.6.0)

Enzyme v0.10.7 `https://github.com/EnzymeAD/Enzyme.jl.git#fixww`

This was referenced Oct 7, 2022
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@vchuravy vchuravy mentioned this issue Oct 10, 2022
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@vchuravy vchuravy

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Fix tape size mismatch for Any EnzymeAD/Enzyme.jl
3 participants
@vchuravy @wsmoses @Finn-Sueberkrueb