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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
; RUN: opt < %s -passes=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, ptr, ptr }
@t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8
; Function Attrs: nounwind uwtable
define i32 @main(i32 %argc, ptr nocapture readnone %argv) #0 {
; CHECK-LABEL: define {{[^@]+}}@main
; CHECK-SAME: (i32 [[ARGC:%.*]], ptr nocapture readnone [[ARGV:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: tail call void (ptr, ptr, ptr, ptr, ptr, ...) @callee_t0f(ptr undef, ptr undef, ptr undef, ptr undef, ptr undef, ptr byval([[STRUCT_TT0:%.*]]) align 8 @t45)
; CHECK-NEXT: ret i32 0
;
entry:
tail call void (ptr, ptr, ptr, ptr, ptr, ...) @callee_t0f(ptr undef, ptr undef, ptr undef, ptr undef, ptr undef, ptr byval(%struct.tt0) align 8 @t45)
ret i32 0
}
; Function Attrs: nounwind uwtable
define internal void @callee_t0f(ptr nocapture readnone %tp13, ptr nocapture readnone %tp14, ptr nocapture readnone %tp15, ptr nocapture readnone %tp16, ptr nocapture readnone %tp17, ...) {
; CHECK-LABEL: define {{[^@]+}}@callee_t0f
; CHECK-SAME: (ptr nocapture readnone [[TP13:%.*]], ptr nocapture readnone [[TP14:%.*]], ptr nocapture readnone [[TP15:%.*]], ptr nocapture readnone [[TP16:%.*]], ptr nocapture readnone [[TP17:%.*]], ...) {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
;
entry:
ret void
}
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