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llvm-project/clang/test/CodeGenCXX/reference-cast.cpp

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Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
// RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin10 -o - %s | FileCheck %s
// PR6024
extern int i;
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK: define dereferenceable({{[0-9]+}}) i32* @_Z16lvalue_noop_castv() [[NUW:#[0-9]+]]
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const int &lvalue_noop_cast() {
if (i == 0)
// CHECK: store i32 17, i32*
return (const int&)17;
else if (i == 1)
// CHECK: store i32 17, i32*
return static_cast<const int&>(17);
// CHECK: store i32 17, i32*
return 17;
}
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) i16* @_Z20lvalue_integral_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const short &lvalue_integral_cast() {
if (i == 0)
// CHECK: store i16 17, i16*
return (const short&)17;
else if (i == 1)
// CHECK: store i16 17, i16*
return static_cast<const short&>(17);
// CHECK: store i16 17, i16*
return 17;
}
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) i16* @_Z29lvalue_floating_integral_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const short &lvalue_floating_integral_cast() {
if (i == 0)
// CHECK: store i16 17, i16*
return (const short&)17.5;
else if (i == 1)
// CHECK: store i16 17, i16*
return static_cast<const short&>(17.5);
// CHECK: store i16 17, i16*
return 17.5;
}
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) float* @_Z29lvalue_integral_floating_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const float &lvalue_integral_floating_cast() {
if (i == 0)
Adjust test for float printing differences. Windows uses three digits for the exponent, everyone else two. llvm-svn: 108693
2010-07-19 19:48:10 +08:00
// CHECK: store float 1.700000e+{{0*}}1, float*
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
return (const float&)17;
else if (i == 1)
Adjust test for float printing differences. Windows uses three digits for the exponent, everyone else two. llvm-svn: 108693
2010-07-19 19:48:10 +08:00
// CHECK: store float 1.700000e+{{0*}}1, float*
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
return static_cast<const float&>(17);
Adjust test for float printing differences. Windows uses three digits for the exponent, everyone else two. llvm-svn: 108693
2010-07-19 19:48:10 +08:00
// CHECK: store float 1.700000e+{{0*}}1, float*
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
return 17;
}
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) float* @_Z20lvalue_floating_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const float &lvalue_floating_cast() {
if (i == 0)
Adjust test for float printing differences. Windows uses three digits for the exponent, everyone else two. llvm-svn: 108693
2010-07-19 19:48:10 +08:00
// CHECK: store float 1.700000e+{{0*}}1, float*
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
return (const float&)17.0;
else if (i == 1)
Adjust test for float printing differences. Windows uses three digits for the exponent, everyone else two. llvm-svn: 108693
2010-07-19 19:48:10 +08:00
// CHECK: store float 1.700000e+{{0*}}1, float*
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
return static_cast<const float&>(17.0);
Adjust test for float printing differences. Windows uses three digits for the exponent, everyone else two. llvm-svn: 108693
2010-07-19 19:48:10 +08:00
// CHECK: store float 1.700000e+{{0*}}1, float*
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
return 17.0;
}
int get_int();
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z24lvalue_integer_bool_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const bool &lvalue_integer_bool_cast() {
if (i == 0)
// CHECK: call i32 @_Z7get_intv()
// CHECK: store i8
return (const bool&)get_int();
else if (i == 1)
// CHECK: call i32 @_Z7get_intv()
// CHECK: store i8
return static_cast<const bool&>(get_int());
// CHECK: call i32 @_Z7get_intv()
// CHECK: store i8
return get_int();
}
float get_float();
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z25lvalue_floating_bool_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const bool &lvalue_floating_bool_cast() {
if (i == 0)
// CHECK: call float @_Z9get_floatv()
// CHECK: fcmp une float
// CHECK: store i8
return (const bool&)get_float();
else if (i == 1)
// CHECK: call float @_Z9get_floatv()
// CHECK: fcmp une float
// CHECK: store i8
return static_cast<const bool&>(get_float());
// CHECK: call float @_Z9get_floatv()
// CHECK: fcmp une float
// CHECK: store i8
return get_float();
}
struct X { };
typedef int X::*pm;
typedef int (X::*pmf)(int);
pm get_pointer_to_member_data();
pmf get_pointer_to_member_function();
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z26lvalue_ptrmem_to_bool_castv()
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const bool &lvalue_ptrmem_to_bool_cast() {
if (i == 0)
// CHECK: call i64 @_Z26get_pointer_to_member_datav()
// CHECK: store i8
// CHECK: store i8*
return (const bool&)get_pointer_to_member_data();
else if (i == 1)
// CHECK: call i64 @_Z26get_pointer_to_member_datav()
// CHECK: store i8
// CHECK: store i8*
return static_cast<const bool&>(get_pointer_to_member_data());
// CHECK: call i64 @_Z26get_pointer_to_member_datav()
// CHECK: store i8
// CHECK: store i8*
return get_pointer_to_member_data();
}
Mark C++ reference parameters as dereferenceable Because references must be initialized using some evaluated expression, they must point to something, and a callee can assume the reference parameter is dereferenceable. Taking advantage of a new attribute just added to LLVM, mark them as such. Because dereferenceability in addrspace(0) implies nonnull in the backend, we don't need both attributes. However, we need to know the size of the object to use the dereferenceable attribute, so for incomplete types we still emit only nonnull. llvm-svn: 213386
2014-07-18 23:52:10 +08:00
// CHECK-LABEL: define dereferenceable({{[0-9]+}}) i8* @_Z27lvalue_ptrmem_to_bool_cast2v
Reinstate the scalar-cast-to-const-reference improvements, this time with the proper spelling of "non-class prvalue". Silly me, I think class rvalues were xvalues rather than prvalues! Hah hah hah. llvm-svn: 108443
2010-07-16 02:58:16 +08:00
const bool &lvalue_ptrmem_to_bool_cast2() {
if (i == 0)
// CHECK: {{call.*_Z30get_pointer_to_member_functionv}}
// CHECK: store i8
// CHECK: store i8*
return (const bool&)get_pointer_to_member_function();
else if (i == 1)
// CHECK: {{call.*_Z30get_pointer_to_member_functionv}}
// CHECK: store i8
// CHECK: store i8*
return static_cast<const bool&>(get_pointer_to_member_function());
// CHECK: {{call.*_Z30get_pointer_to_member_functionv}}
// CHECK: store i8
// CHECK: store i8*
return get_pointer_to_member_function();
}
_Complex double get_complex_double();
// CHECK: {{define.*_Z2f1v}}
const _Complex float &f1() {
if (i == 0)
// CHECK: {{call.*_Z18get_complex_doublev}}
// CHECK: fptrunc
// CHECK: fptrunc
// CHECK: store float
// CHECK: store float
return (const _Complex float&)get_complex_double();
else if (i == 1)
// CHECK: {{call.*_Z18get_complex_doublev}}
// CHECK: fptrunc
// CHECK: fptrunc
// CHECK: store float
// CHECK: store float
return static_cast<const _Complex float&>(get_complex_double());
// CHECK: {{call.*_Z18get_complex_doublev}}
// CHECK: fptrunc
// CHECK: fptrunc
// CHECK: store float
// CHECK: store float
return get_complex_double();
}
Hand materialization of temporary expressions when emitting a scalar expression. Fxies PR10592. llvm-svn: 137086
2011-08-09 08:37:14 +08:00
CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail. llvm-svn: 188447
2013-08-15 14:47:53 +08:00
// CHECK-LABEL: define i32 @_Z7pr10592RKi(i32*
Hand materialization of temporary expressions when emitting a scalar expression. Fxies PR10592. llvm-svn: 137086
2011-08-09 08:37:14 +08:00
unsigned pr10592(const int &v) {
// CHECK: [[VADDR:%[a-zA-Z0-9.]+]] = alloca i32*
// CHECK-NEXT: [[REFTMP:%[a-zA-Z0-9.]+]] = alloca i32
// CHECK-NEXT: store i32* [[V:%[a-zA-Z0-9.]+]], i32** [[VADDR]]
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK-NEXT: [[VADDR_1:%[a-zA-Z0-9.]+]] = load i32*, i32** [[VADDR]]
// CHECK-NEXT: [[VVAL:%[a-zA-Z0-9.]+]] = load i32, i32* [[VADDR_1]]
Hand materialization of temporary expressions when emitting a scalar expression. Fxies PR10592. llvm-svn: 137086
2011-08-09 08:37:14 +08:00
// CHECK-NEXT: store i32 [[VVAL]], i32* [[REFTMP]]
Update Clang tests to handle explicitly typed load changes in LLVM. llvm-svn: 230795
2015-02-28 05:19:58 +08:00
// CHECK-NEXT: [[VVAL_I:%[a-zA-Z0-9.]+]] = load i32, i32* [[REFTMP]]
Hand materialization of temporary expressions when emitting a scalar expression. Fxies PR10592. llvm-svn: 137086
2011-08-09 08:37:14 +08:00
// CHECK-NEXT: ret i32 [[VVAL_I]]
return static_cast<const unsigned &>(v);
}
Fix r137086 to actually work properly in general. PR10650. llvm-svn: 137574
2011-08-14 12:50:34 +08:00
namespace PR10650 {
struct Helper {
unsigned long long id();
};
unsigned long long test(Helper *obj) {
return static_cast<const unsigned long long&>(obj->id());
}
CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail. llvm-svn: 188447
2013-08-15 14:47:53 +08:00
// CHECK-LABEL: define i64 @_ZN7PR106504testEPNS_6HelperE
Fix r137086 to actually work properly in general. PR10650. llvm-svn: 137574
2011-08-14 12:50:34 +08:00
// CHECK: store i64
}
Modify the tests to use attribute group references instead of listing the function attributes. llvm-svn: 175606
2013-02-20 15:22:19 +08:00
Cleanup the handling of noinline function attributes, -fno-inline, -fno-inline-functions, -O0, and optnone. These were really, really tangled together: - We used the noinline LLVM attribute for -fno-inline - But not for -fno-inline-functions (breaking LTO) - But we did use it for -finline-hint-functions (yay, LTO is happy!) - But we didn't for -O0 (LTO is sad yet again...) - We had weird structuring of CodeGenOpts with both an inlining enumeration and a boolean. They interacted in weird ways and needlessly. - A *lot* of set smashing went on with setting these, and then got worse when we considered optnone and other inlining-effecting attributes. - A bunch of inline affecting attributes were managed in a completely different place from -fno-inline. - Even with -fno-inline we failed to put the LLVM noinline attribute onto many generated function definitions because they didn't show up as AST-level functions. - If you passed -O0 but -finline-functions we would run the normal inliner pass in LLVM despite it being in the O0 pipeline, which really doesn't make much sense. - Lastly, we used things like '-fno-inline' to manipulate the pass pipeline which forced the pass pipeline to be much more parameterizable than it really needs to be. Instead we can *just* use the optimization level to select a pipeline and control the rest via attributes. Sadly, this causes a bunch of churn in tests because we don't run the optimizer in the tests and check the contents of attribute sets. It would be awesome if attribute sets were a bit more FileCheck friendly, but oh well. I think this is a significant improvement and should remove the semantic need to change what inliner pass we run in order to comply with the requested inlining semantics by relying completely on attributes. It also cleans up tho optnone and related handling a bit. One unfortunate aspect of this is that for generating alwaysinline routines like those in OpenMP we end up removing noinline and then adding alwaysinline. I tried a bunch of other approaches, but because we recompute function attributes from scratch and don't have a declaration here I couldn't find anything substantially cleaner than this. Differential Revision: https://reviews.llvm.org/D28053 llvm-svn: 290398
2016-12-23 09:24:49 +08:00
// CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} }