| Reid Kleckner | e6e88f9 | 2014-08-25 23:58:48 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -argpromotion -S | FileCheck %s |
| 2 | |
| 3 | ; Unused arguments from variadic functions cannot be eliminated as that changes |
| 4 | ; their classiciation according to the SysV amd64 ABI. Clang and other frontends |
| 5 | ; bake in the classification when they use things like byval, as in this test. |
| 6 | |
| 7 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 8 | target triple = "x86_64-unknown-linux-gnu" |
| 9 | |
| 10 | %struct.tt0 = type { i64, i64 } |
| 11 | %struct.__va_list_tag = type { i32, i32, i8*, i8* } |
| 12 | |
| 13 | @t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8 |
| 14 | |
| 15 | ; Function Attrs: nounwind uwtable |
| 16 | define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 { |
| 17 | entry: |
| 18 | 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 | ret i32 0 |
| 20 | } |
| 21 | |
| 22 | ; Function Attrs: nounwind uwtable |
| 23 | 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, ...) { |
| 24 | entry: |
| 25 | ret void |
| 26 | } |
| 27 | |
| 28 | ; 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, ...) |