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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals2; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT3; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC4 5; Unused arguments from variadic functions cannot be eliminated as that changes6; their classiciation according to the SysV amd64 ABI. Clang and other frontends7; bake in the classification when they use things like byval, as in this test.8 9target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"10target triple = "x86_64-unknown-linux-gnu"11 12%struct.tt0 = type { i64, i64 }13%struct.__va_list_tag = type { i32, i32, ptr, ptr }14 15@t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 816 17; Function Attrs: nounwind uwtable18;.19; CHECK: @t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 820;.21define i32 @main(i32 %argc, ptr nocapture readnone %argv) #0 {22; CHECK-LABEL: define {{[^@]+}}@main23; CHECK-SAME: (i32 [[ARGC:%.*]], ptr nofree readnone captures(none) [[ARGV:%.*]]) {24; CHECK-NEXT: entry:25; CHECK-NEXT: tail call void (ptr, ptr, ptr, ptr, ptr, ...) @callee_t0f(ptr nofree undef, ptr nofree undef, ptr nofree undef, ptr nofree undef, ptr nofree undef, ptr noalias noundef nonnull byval([[STRUCT_TT0:%.*]]) align 8 dereferenceable(16) @t45)26; CHECK-NEXT: ret i32 027;28entry:29 tail call void (ptr, ptr, ptr, ptr, ptr, ...) @callee_t0f(ptr undef, ptr undef, ptr undef, ptr undef, ptr undef, ptr byval(%struct.tt0) align 8 @t45)30 ret i32 031}32 33; Function Attrs: nounwind uwtable34define internal void @callee_t0f(ptr nocapture readnone %tp13, ptr nocapture readnone %tp14, ptr nocapture readnone %tp15, ptr nocapture readnone %tp16, ptr nocapture readnone %tp17, ...) {35; CHECK-LABEL: define {{[^@]+}}@callee_t0f36; CHECK-SAME: (ptr noalias nofree readnone align 4294967296 captures(none) [[TP13:%.*]], ptr noalias nofree readnone align 4294967296 captures(none) [[TP14:%.*]], ptr noalias nofree readnone align 4294967296 captures(none) [[TP15:%.*]], ptr noalias nofree readnone align 4294967296 captures(none) [[TP16:%.*]], ptr noalias nofree readnone align 4294967296 captures(none) [[TP17:%.*]], ...) {37; CHECK-NEXT: entry:38; CHECK-NEXT: call void @sink(i32 noundef 0)39; CHECK-NEXT: ret void40;41entry:42 call void @sink(i32 0)43 ret void44}45 46declare void @sink(i32)47;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:48; CGSCC: {{.*}}49; TUNIT: {{.*}}50