xref: /llvm-project/llvm/test/Transforms/PGOProfile/icp_vararg_sret.ll (revision 9ff36df5a4a7d52c51e950522870bb64912688d2)
1fc202c5fSHans Wennborg; RUN: opt < %s -passes=pgo-icall-prom -S | FileCheck %s
2fc202c5fSHans Wennborgtarget datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
3fc202c5fSHans Wennborgtarget triple = "x86_64-unknown-linux-gnu"
4fc202c5fSHans Wennborg
5fc202c5fSHans Wennborgdefine void @va_func(i32 %num, ...) {
6fc202c5fSHans Wennborgentry:
7fc202c5fSHans Wennborg  ret void
8fc202c5fSHans Wennborg}
9fc202c5fSHans Wennborg
10fc202c5fSHans Wennborg%struct = type { i32 }
11*9ff36df5SFangrui Song@func_ptr = common global ptr null, align 8
12fc202c5fSHans Wennborg
13fc202c5fSHans Wennborgdefine void @test() {
14fc202c5fSHans Wennborg; Even though value profiling suggests @va_func is the call target, don't do
15fc202c5fSHans Wennborg; call promotion because the sret argument is not compatible with the varargs
16fc202c5fSHans Wennborg; function.
17fc202c5fSHans Wennborg; CHECK-LABEL: @test
18fc202c5fSHans Wennborg; CHECK-NOT: call void (i32, ...) @va_func
19fc202c5fSHans Wennborg; CHECK: call void %tmp
20fc202c5fSHans Wennborg; CHECK: ret void
21fc202c5fSHans Wennborg
22fc202c5fSHans Wennborg  %s = alloca %struct
23*9ff36df5SFangrui Song  %tmp = load ptr, ptr @func_ptr, align 8
24*9ff36df5SFangrui Song  call void %tmp(i32 1, ptr sret(%struct) %s), !prof !1
25fc202c5fSHans Wennborg  ret void
26fc202c5fSHans Wennborg}
27fc202c5fSHans Wennborg
28fc202c5fSHans Wennborg!1 = !{!"VP", i32 0, i64 12345, i64 989055279648259519, i64 12345}
29