Mercurial > hg > CbC > CbC_llvm
view clang/test/CodeGenCXX/varargs.cpp @ 252:1f2b6ac9f198 llvm-original
LLVM16-1
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 18 Aug 2023 09:04:13 +0900 (2023-08-18) |
parents | c4bab56944e8 |
children |
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s // rdar://7309675 // PR4678 namespace test0 { // test1 should be compmiled to be a varargs function in the IR even // though there is no way to do a va_begin. Otherwise, the optimizer // will warn about 'dropped arguments' at the call site. // CHECK-LABEL: define{{.*}} i32 @_ZN5test05test1Ez(...) int test1(...) { return -1; } // CHECK: call noundef i32 (...) @_ZN5test05test1Ez(i32 noundef 0) void test() { test1(0); } } namespace test1 { struct A { int x; int y; }; void foo(...); void test() { A x; foo(x); } // CHECK-LABEL: define{{.*}} void @_ZN5test14testEv() // CHECK: [[X:%.*]] = alloca [[A:%.*]], align 4 // CHECK-NEXT: [[TMP:%.*]] = alloca [[A]], align 4 // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 [[TMP]], ptr align 4 [[X]], i64 8, i1 false) // CHECK-NEXT: [[T1:%.*]] = load i64, ptr [[TMP]], align 4 // CHECK-NEXT: call void (...) @_ZN5test13fooEz(i64 [[T1]]) // CHECK-NEXT: ret void }