| ; RUN: opt < %s -argpromotion -S | FileCheck %s |
| |
| ; Unused arguments from variadic functions cannot be eliminated as that changes |
| ; their classiciation according to the SysV amd64 ABI. Clang and other frontends |
| ; bake in the classification when they use things like byval, as in this test. |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %struct.tt0 = type { i64, i64 } |
| %struct.__va_list_tag = type { i32, i32, i8*, i8* } |
| |
| @t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8 |
| |
| ; Function Attrs: nounwind uwtable |
| define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 { |
| entry: |
| 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) |
| ret i32 0 |
| } |
| |
| ; Function Attrs: nounwind uwtable |
| 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, ...) { |
| entry: |
| ret void |
| } |
| |
| ; 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, ...) |