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
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, i8*, i8* }
14
15@t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8
16
17; Function Attrs: nounwind uwtable
18define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 {
19; CHECK-LABEL: define {{[^@]+}}@main
20; CHECK-SAME: (i32 [[ARGC:%.*]], i8** nocapture readnone [[ARGV:%.*]])
21; CHECK-NEXT:  entry:
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
24;
25entry:
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)
27  ret i32 0
28}
29
30; Function Attrs: nounwind uwtable
31define 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:%.*]], ...)
34; CHECK-NEXT:  entry:
35; CHECK-NEXT:    ret void
36;
37entry:
38  ret void
39}
40