1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
2 ; RUN: opt < %s -argpromotion -S | FileCheck %s
3 ; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
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.
9 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
10 target triple = "x86_64-unknown-linux-gnu"
12 %struct.tt0 = type { i64, i64 }
13 %struct.__va_list_tag = type { i32, i32, i8*, i8* }
15 @t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8
17 ; Function Attrs: nounwind uwtable
18 define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 {
19 ; CHECK-LABEL: define {{[^@]+}}@main
20 ; CHECK-SAME: (i32 [[ARGC:%.*]], i8** nocapture readnone [[ARGV:%.*]])
22 ; CHECK-NEXT: tail call void (i8*, i8*, i8*, i8*, i8*, ...) @callee_t0f(i8* undef, i8* undef, i8* undef, i8* undef, i8* undef, %struct.tt0* byval(%struct.tt0) align 8 @t45)
23 ; CHECK-NEXT: ret i32 0
26 tail call void (i8*, i8*, i8*, i8*, i8*, ...) @callee_t0f(i8* undef, i8* undef, i8* undef, i8* undef, i8* undef, %struct.tt0* byval(%struct.tt0) align 8 @t45)
30 ; Function Attrs: nounwind uwtable
31 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, ...) {
32 ; CHECK-LABEL: define {{[^@]+}}@callee_t0f
33 ; CHECK-SAME: (i8* nocapture readnone [[TP13:%.*]], i8* nocapture readnone [[TP14:%.*]], i8* nocapture readnone [[TP15:%.*]], i8* nocapture readnone [[TP16:%.*]], i8* nocapture readnone [[TP17:%.*]], ...)
35 ; CHECK-NEXT: ret void