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6b3351792c
For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie
and COFF, but not for Mach-O. This nuance causes unneeded binary format differences.
This patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `
if there is an explicit linkage.
* Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar.
* Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
164 lines
4.4 KiB
C++
164 lines
4.4 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s | FileCheck %s
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struct X { int i; float f; };
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struct Y { X x; };
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// CHECK-LABEL: define{{.*}} void @_Z21reinterpret_cast_testRiRfR1X
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void reinterpret_cast_test(int &ir, float &fr, X &xr) {
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: load i32, i32*
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ir = reinterpret_cast<int&>(fr);
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// CHECK: load
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// CHECK: {{bitcast.*to i32\*}}
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// CHECK: load i32, i32*
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ir = reinterpret_cast<int&>(xr);
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// CHECK: load i32
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// CHECK: {{bitcast.*to float\*}}
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// CHECK: load float, float*
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fr = reinterpret_cast<float&>(ir);
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// CHECK: load
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// CHECK: {{bitcast.*to float\*}}
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// CHECK: load float, float*
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fr = reinterpret_cast<float&>(xr);
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// CHECK: load i32*, i32**
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// CHECK: bitcast i32*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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xr = reinterpret_cast<X&>(ir);
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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xr = reinterpret_cast<X&>(fr);
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_Complex float cf;
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_Complex float &cfr = cf;
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// CHECK: load i32*, i32**
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// CHECK: bitcast i32*
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = reinterpret_cast<_Complex float&>(ir);
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = reinterpret_cast<_Complex float&>(fr);
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// CHECK: bitcast
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = reinterpret_cast<_Complex float&>(xr);
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// CHECK: ret void
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}
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// CHECK-LABEL: define{{.*}} void @_Z6c_castRiRfR1X
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void c_cast(int &ir, float &fr, X &xr) {
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: load i32, i32*
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ir = (int&)fr;
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// CHECK: load
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// CHECK: {{bitcast.*to i32\*}}
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// CHECK: load i32, i32*
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ir = (int&)xr;
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// CHECK: load i32
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// CHECK: {{bitcast.*to float\*}}
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// CHECK: load float, float*
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fr = (float&)ir;
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// CHECK: load
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// CHECK: {{bitcast.*to float\*}}
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// CHECK: load float, float*
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fr = (float&)xr;
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// CHECK: load i32*, i32**
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// CHECK: bitcast i32*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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xr = (X&)ir;
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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xr = (X&)fr;
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_Complex float cf;
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_Complex float &cfr = cf;
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// CHECK: load i32*, i32**
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// CHECK: bitcast i32*
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = (_Complex float&)ir;
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = (_Complex float&)fr;
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// CHECK: bitcast
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = (_Complex float&)xr;
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// CHECK: ret void
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}
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// CHECK-LABEL: define{{.*}} void @_Z15functional_castRiRfR1X
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void functional_cast(int &ir, float &fr, X &xr) {
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typedef int &intref;
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typedef float &floatref;
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typedef X &Xref;
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: load i32, i32*
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ir = intref(fr);
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// CHECK: load
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// CHECK: {{bitcast.*to i32\*}}
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// CHECK: load i32, i32*
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ir = intref(xr);
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// CHECK: load i32
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// CHECK: {{bitcast.*to float\*}}
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// CHECK: load float, float*
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fr = floatref(ir);
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// CHECK: load
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// CHECK: {{bitcast.*to float\*}}
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// CHECK: load float, float*
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fr = floatref(xr);
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// CHECK: load i32*, i32**
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// CHECK: bitcast i32*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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xr = Xref(ir);
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
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xr = Xref(fr);
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typedef _Complex float &complex_float_ref;
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_Complex float cf;
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_Complex float &cfr = cf;
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// CHECK: load i32*, i32**
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// CHECK: bitcast i32*
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = complex_float_ref(ir);
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// CHECK: load float*, float**
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// CHECK: bitcast float*
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = complex_float_ref(fr);
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// CHECK: bitcast
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// CHECK: load float, float*
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// CHECK: load float, float*
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cfr = complex_float_ref(xr);
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// CHECK: ret void
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}
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namespace PR6437 {
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struct in_addr {};
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void copy( const struct in_addr &new_addr ) {
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int addr = (int&)new_addr;
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}
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}
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namespace PR7593 {
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void foo(double &X, char *A) {
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X = reinterpret_cast<double&>(A[4]);
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}
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}
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namespace PR7344 {
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void serialize_annotatable_id( void*& id )
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{
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unsigned long l_id = (unsigned long&)id;
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}
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}
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