e0ac46e69d
This reverts commit d618f1c3b1.
This commit wasn't reviewed ahead of time and significant concerns were
raised immediately after it landed. According to our developer policy
this warrants immediate revert of the commit.
https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy
Differential Revision: https://reviews.llvm.org/D155509
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
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// rdar://7309675
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// PR4678
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namespace test0 {
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// test1 should be compmiled to be a varargs function in the IR even
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// though there is no way to do a va_begin. Otherwise, the optimizer
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// will warn about 'dropped arguments' at the call site.
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// CHECK-LABEL: define{{.*}} i32 @_ZN5test05test1Ez(...)
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int test1(...) {
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return -1;
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}
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// CHECK: call noundef i32 (...) @_ZN5test05test1Ez(i32 noundef 0)
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void test() {
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test1(0);
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}
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}
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namespace test1 {
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struct A {
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int x;
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int y;
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};
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void foo(...);
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void test() {
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A x;
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foo(x);
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}
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// CHECK-LABEL: define{{.*}} void @_ZN5test14testEv()
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// CHECK: [[X:%.*]] = alloca [[A:%.*]], align 4
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// CHECK-NEXT: [[TMP:%.*]] = alloca [[A]], align 4
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// CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 [[TMP]], ptr align 4 [[X]], i64 8, i1 false)
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// CHECK-NEXT: [[T1:%.*]] = load i64, ptr [[TMP]], align 4
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// CHECK-NEXT: call void (...) @_ZN5test13fooEz(i64 [[T1]])
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// CHECK-NEXT: ret void
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}
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