f8b86964ca
I disabled putting the new global into the same COMDAT as the function for now. There's a fundamental problem when we inline references to the global but still have the global in a COMDAT linked to the inlined function. Since this is only an optimization there may be other versions of the COMDAT around that are missing the new global and hell breaks loose at link time. I hope the chromium build doesn't break this time :) llvm-svn: 231564
113 lines
2.4 KiB
C++
113 lines
2.4 KiB
C++
// RUN: %clang_cc1 -triple i386-unknown-unknown -std=c++11 -S -emit-llvm -o - %s -Wno-address-of-temporary | FileCheck %s
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// CHECK: @[[THREE_NULL_MEMPTRS:.*]] = private constant [3 x i32] [i32 -1, i32 -1, i32 -1]
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struct A { int a[1]; };
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typedef A x[];
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int f() {
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x{{{1}}};
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// CHECK-LABEL: define i32 @_Z1fv
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// CHECK: store i32 1
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// (It's okay if the output changes here, as long as we don't crash.)
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return 0;
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}
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namespace ValueInitArrayOfMemPtr {
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struct S {};
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typedef int (S::*p);
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typedef p a[3];
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void f(const a &);
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struct Agg1 {
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int n;
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p x;
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};
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struct Agg2 {
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int n;
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a x;
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};
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struct S1 {
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p x;
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S1();
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};
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// CHECK-LABEL: define void @_ZN22ValueInitArrayOfMemPtr1fEi
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void f(int n) {
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Agg1 a = { n };
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// CHECK: store i32 -1,
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Agg2 b = { n };
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %{{.*}}, i8* bitcast ([3 x i32]* @[[THREE_NULL_MEMPTRS]] to i8*), i32 12, i32 4, i1 false)
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}
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// Test dynamic initialization.
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// CHECK-LABEL: define void @_ZN22ValueInitArrayOfMemPtr1gEMNS_1SEi
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void g(p ptr) {
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// CHECK: store i32 -1,
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f(a{ptr});
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}
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}
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namespace array_dtor {
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struct S { S(); ~S(); };
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using T = S[3];
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void f(const T &);
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void f(T *);
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// CHECK-LABEL: define void @_ZN10array_dtor1gEv(
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void g() {
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// CHECK: %[[ARRAY:.*]] = alloca [3 x
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// CHECK: br
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// Construct loop.
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// CHECK: call void @_ZN10array_dtor1SC1Ev(
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// CHECK: br i1
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// CHECK: call void @_ZN10array_dtor1fERA3_KNS_1SE(
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// CHECK: br
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// Destruct loop.
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// CHECK: call void @_ZN10array_dtor1SD1Ev(
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// CHECK: br i1
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f(T{});
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// CHECK: ret void
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}
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// CHECK-LABEL: define void @_ZN10array_dtor1hEv(
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void h() {
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// CHECK: %[[ARRAY:.*]] = alloca [3 x
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// CHECK: br
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// CHECK: call void @_ZN10array_dtor1SC1Ev(
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// CHECK: br i1
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T &&t = T{};
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// CHECK: call void @_ZN10array_dtor1fERA3_KNS_1SE(
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// CHECK: br
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f(t);
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// CHECK: call void @_ZN10array_dtor1SD1Ev(
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// CHECK: br i1
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// CHECK: ret void
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}
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// CHECK-LABEL: define void @_ZN10array_dtor1iEv(
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void i() {
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// CHECK: %[[ARRAY:.*]] = alloca [3 x
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// CHECK: br
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// CHECK: call void @_ZN10array_dtor1SC1Ev(
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// CHECK: br i1
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// CHECK: call void @_ZN10array_dtor1fEPA3_NS_1SE(
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// CHECK: br
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// CHECK: call void @_ZN10array_dtor1SD1Ev(
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// CHECK: br i1
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f(&T{});
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// CHECK: ret void
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}
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}
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