1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals 2; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT 3; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC 4 5; Unused arguments from variadic functions cannot be eliminated as that changes 6; their classiciation according to the SysV amd64 ABI. Clang and other frontends 7; 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 8 16 17; Function Attrs: nounwind uwtable 18;. 19; CHECK: @t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8 20;. 21define i32 @main(i32 %argc, ptr nocapture readnone %argv) #0 { 22; CHECK-LABEL: define {{[^@]+}}@main 23; 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 0 27; 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 0 31} 32 33; Function Attrs: nounwind uwtable 34define 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_t0f 36; 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 void 40; 41entry: 42 call void @sink(i32 0) 43 ret void 44} 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