1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -argpromotion -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; Unused arguments from variadic functions cannot be eliminated as that changes 4*9880d681SAndroid Build Coastguard Worker; their classiciation according to the SysV amd64 ABI. Clang and other frontends 5*9880d681SAndroid Build Coastguard Worker; bake in the classification when they use things like byval, as in this test. 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 8*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-unknown-linux-gnu" 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Worker%struct.tt0 = type { i64, i64 } 11*9880d681SAndroid Build Coastguard Worker%struct.__va_list_tag = type { i32, i32, i8*, i8* } 12*9880d681SAndroid Build Coastguard Worker 13*9880d681SAndroid Build Coastguard Worker@t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind uwtable 16*9880d681SAndroid Build Coastguard Workerdefine i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 { 17*9880d681SAndroid Build Coastguard Workerentry: 18*9880d681SAndroid Build Coastguard Worker tail call void (i8*, i8*, i8*, i8*, i8*, ...) @callee_t0f(i8* undef, i8* undef, i8* undef, i8* undef, i8* undef, %struct.tt0* byval align 8 @t45) 19*9880d681SAndroid Build Coastguard Worker ret i32 0 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind uwtable 23*9880d681SAndroid Build Coastguard Workerdefine internal void @callee_t0f(i8* nocapture readnone %tp13, i8* nocapture readnone %tp14, i8* nocapture readnone %tp15, i8* nocapture readnone %tp16, i8* nocapture readnone %tp17, ...) { 24*9880d681SAndroid Build Coastguard Workerentry: 25*9880d681SAndroid Build Coastguard Worker ret void 26*9880d681SAndroid Build Coastguard Worker} 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define internal void @callee_t0f(i8* nocapture readnone %tp13, i8* nocapture readnone %tp14, i8* nocapture readnone %tp15, i8* nocapture readnone %tp16, i8* nocapture readnone %tp17, ...) 29