; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --include-generated-funcs
; RUN: if [ %llvmver -lt 16 ]; then %opt < %s %loadEnzyme -enzyme -enzyme-preopt=false -enzyme-detect-readthrow=0 -mem2reg -sroa -simplifycfg -instcombine -adce -S | FileCheck %s; fi
; RUN: %opt < %s %newLoadEnzyme -passes="enzyme,function(mem2reg,sroa,%simplifycfg,instcombine,adce)" -enzyme-preopt=false -enzyme-detect-readthrow=0 -S | FileCheck %s

; Function Attrs: nounwind
declare void @__enzyme_fwddiff(i8*, ...)

@.str = private unnamed_addr constant [18 x i8] c"W(o=%d, i=%d)=%f\0A\00", align 1

define void @derivative(i64* %from, i64* %fromp1, i64* %fromp2, i64* %fromp3, i64* %to, i64* %top1, i64* %top2, i64* %top3) {
entry:
  call void (i8*, ...) @__enzyme_fwddiff(i8* bitcast (void (i64*, i64*)* @callee to i8*), metadata !"enzyme_width", i64 3, metadata !"enzyme_dup", i64* %from, i64* %fromp1, i64* %fromp2, i64* %fromp3, metadata !"enzyme_dup", i64* %to, i64* %top1, i64* %top2, i64* %top3)
  ret void
}

define void @callee(i64* %from, i64* %to) {
entry:
  store i64 ptrtoint ([18 x i8]* @.str to i64), i64* %to
  ret void
}

; CHECK: define {{[^@]+}}@fwddiffe3callee(i64* [[FROM:%.*]], [3 x i64*] %"from'", i64* [[TO:%.*]], [3 x i64*] %"to'") 
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP0:%.*]] = extractvalue [3 x i64*] %"to'", 0
; CHECK-NEXT:    store i64 ptrtoint ([18 x i8]* @.str to i64), i64* [[TMP0]], align 4
; CHECK-NEXT:    [[TMP1:%.*]] = extractvalue [3 x i64*] %"to'", 1
; CHECK-NEXT:    store i64 ptrtoint ([18 x i8]* @.str to i64), i64* [[TMP1]], align 4
; CHECK-NEXT:    [[TMP2:%.*]] = extractvalue [3 x i64*] %"to'", 2
; CHECK-NEXT:    store i64 ptrtoint ([18 x i8]* @.str to i64), i64* [[TMP2]], align 4
; CHECK-NEXT:    store i64 ptrtoint ([18 x i8]* @.str to i64), i64* [[TO]], align 4
; CHECK-NEXT:    ret void
;
