2012-07-14 04:48:52 +08:00
|
|
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s
|
2009-10-27 20:19:13 +08:00
|
|
|
|
|
|
|
|
#define strcpy(dest, src) \
|
|
|
|
|
((__builtin_object_size(dest, 0) != -1ULL) \
|
|
|
|
|
? __builtin___strcpy_chk (dest, src, __builtin_object_size(dest, 1)) \
|
|
|
|
|
: __inline_strcpy_chk(dest, src))
|
|
|
|
|
|
|
|
|
|
static char *__inline_strcpy_chk (char *dest, const char *src) {
|
|
|
|
|
return __builtin___strcpy_chk(dest, src, __builtin_object_size(dest, 1));
|
|
|
|
|
}
|
2009-10-27 02:35:08 +08:00
|
|
|
|
|
|
|
|
char gbuf[63];
|
|
|
|
|
char *gp;
|
2009-10-30 07:22:14 +08:00
|
|
|
int gi, gj;
|
2009-10-27 02:35:08 +08:00
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test1
|
2009-10-27 02:35:08 +08:00
|
|
|
void test1() {
|
Compute and preserve alignment more faithfully in IR-generation.
Introduce an Address type to bundle a pointer value with an
alignment. Introduce APIs on CGBuilderTy to work with Address
values. Change core APIs on CGF/CGM to traffic in Address where
appropriate. Require alignments to be non-zero. Update a ton
of code to compute and propagate alignment information.
As part of this, I've promoted CGBuiltin's EmitPointerWithAlignment
helper function to CGF and made use of it in a number of places in
the expression emitter.
The end result is that we should now be significantly more correct
when performing operations on objects that are locally known to
be under-aligned. Since alignment is not reliably tracked in the
type system, there are inherent limits to this, but at least we
are no longer confused by standard operations like derived-to-base
conversions and array-to-pointer decay. I've also fixed a large
number of bugs where we were applying the complete-object alignment
to a pointer instead of the non-virtual alignment, although most of
these were hidden by the very conservative approach we took with
member alignment.
Also, because IRGen now reliably asserts on zero alignments, we
should no longer be subject to an absurd but frustrating recurring
bug where an incomplete type would report a zero alignment and then
we'd naively do a alignmentAtOffset on it and emit code using an
alignment equal to the largest power-of-two factor of the offset.
We should also now be emitting much more aggressive alignment
attributes in the presence of over-alignment. In particular,
field access now uses alignmentAtOffset instead of min.
Several times in this patch, I had to change the existing
code-generation pattern in order to more effectively use
the Address APIs. For the most part, this seems to be a strict
improvement, like doing pointer arithmetic with GEPs instead of
ptrtoint. That said, I've tried very hard to not change semantics,
but it is likely that I've failed in a few places, for which I
apologize.
ABIArgInfo now always carries the assumed alignment of indirect and
indirect byval arguments. In order to cut down on what was already
a dauntingly large patch, I changed the code to never set align
attributes in the IR on non-byval indirect arguments. That is,
we still generate code which assumes that indirect arguments have
the given alignment, but we don't express this information to the
backend except where it's semantically required (i.e. on byvals).
This is likely a minor regression for those targets that did provide
this information, but it'll be trivial to add it back in a later
patch.
I partially punted on applying this work to CGBuiltin. Please
do not add more uses of the CreateDefaultAligned{Load,Store}
APIs; they will be going away eventually.
llvm-svn: 246985
2015-09-08 16:05:57 +08:00
|
|
|
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i64 0, i64 4), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0), i64 59)
|
2009-10-27 02:35:08 +08:00
|
|
|
strcpy(&gbuf[4], "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test2
|
2009-10-27 02:35:08 +08:00
|
|
|
void test2() {
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i32 0, i32 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0), i64 63)
|
2009-10-27 02:35:08 +08:00
|
|
|
strcpy(gbuf, "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test3
|
2009-10-27 05:38:39 +08:00
|
|
|
void test3() {
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i64 1, i64 37), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0), i64 0)
|
2009-10-27 05:38:39 +08:00
|
|
|
strcpy(&gbuf[100], "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test4
|
2009-10-27 02:35:08 +08:00
|
|
|
void test4() {
|
Compute and preserve alignment more faithfully in IR-generation.
Introduce an Address type to bundle a pointer value with an
alignment. Introduce APIs on CGBuilderTy to work with Address
values. Change core APIs on CGF/CGM to traffic in Address where
appropriate. Require alignments to be non-zero. Update a ton
of code to compute and propagate alignment information.
As part of this, I've promoted CGBuiltin's EmitPointerWithAlignment
helper function to CGF and made use of it in a number of places in
the expression emitter.
The end result is that we should now be significantly more correct
when performing operations on objects that are locally known to
be under-aligned. Since alignment is not reliably tracked in the
type system, there are inherent limits to this, but at least we
are no longer confused by standard operations like derived-to-base
conversions and array-to-pointer decay. I've also fixed a large
number of bugs where we were applying the complete-object alignment
to a pointer instead of the non-virtual alignment, although most of
these were hidden by the very conservative approach we took with
member alignment.
Also, because IRGen now reliably asserts on zero alignments, we
should no longer be subject to an absurd but frustrating recurring
bug where an incomplete type would report a zero alignment and then
we'd naively do a alignmentAtOffset on it and emit code using an
alignment equal to the largest power-of-two factor of the offset.
We should also now be emitting much more aggressive alignment
attributes in the presence of over-alignment. In particular,
field access now uses alignmentAtOffset instead of min.
Several times in this patch, I had to change the existing
code-generation pattern in order to more effectively use
the Address APIs. For the most part, this seems to be a strict
improvement, like doing pointer arithmetic with GEPs instead of
ptrtoint. That said, I've tried very hard to not change semantics,
but it is likely that I've failed in a few places, for which I
apologize.
ABIArgInfo now always carries the assumed alignment of indirect and
indirect byval arguments. In order to cut down on what was already
a dauntingly large patch, I changed the code to never set align
attributes in the IR on non-byval indirect arguments. That is,
we still generate code which assumes that indirect arguments have
the given alignment, but we don't express this information to the
backend except where it's semantically required (i.e. on byvals).
This is likely a minor regression for those targets that did provide
this information, but it'll be trivial to add it back in a later
patch.
I partially punted on applying this work to CGBuiltin. Please
do not add more uses of the CreateDefaultAligned{Load,Store}
APIs; they will be going away eventually.
llvm-svn: 246985
2015-09-08 16:05:57 +08:00
|
|
|
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i64 0, i64 -1), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0), i64 0)
|
2009-10-27 05:38:39 +08:00
|
|
|
strcpy((char*)(void*)&gbuf[-1], "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test5
|
2009-10-27 05:38:39 +08:00
|
|
|
void test5() {
|
2015-02-28 05:19:58 +08:00
|
|
|
// CHECK: = load i8*, i8** @gp
|
2013-10-08 03:00:18 +08:00
|
|
|
// CHECK-NEXT:= call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
2009-10-27 05:38:39 +08:00
|
|
|
strcpy(gp, "Hi there");
|
2009-10-27 02:35:08 +08:00
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test6
|
2009-10-27 05:38:39 +08:00
|
|
|
void test6() {
|
2009-10-27 07:05:19 +08:00
|
|
|
char buf[57];
|
|
|
|
|
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0), i64 53)
|
2009-10-27 07:05:19 +08:00
|
|
|
strcpy(&buf[4], "Hi there");
|
|
|
|
|
}
|
2009-10-30 07:22:14 +08:00
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test7
|
2009-10-30 07:22:14 +08:00
|
|
|
void test7() {
|
|
|
|
|
int i;
|
2012-05-23 12:13:20 +08:00
|
|
|
// Ensure we only evaluate the side-effect once.
|
|
|
|
|
// CHECK: = add
|
|
|
|
|
// CHECK-NOT: = add
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i32 0, i32 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0), i64 63)
|
2009-10-30 07:22:14 +08:00
|
|
|
strcpy((++i, gbuf), "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test8
|
2009-10-30 07:22:14 +08:00
|
|
|
void test8() {
|
|
|
|
|
char *buf[50];
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:22:14 +08:00
|
|
|
strcpy(buf[++gi], "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test9
|
2009-10-30 07:22:14 +08:00
|
|
|
void test9() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:22:14 +08:00
|
|
|
strcpy((char *)((++gi) + gj), "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test10
|
2009-10-30 07:22:14 +08:00
|
|
|
char **p;
|
|
|
|
|
void test10() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:22:14 +08:00
|
|
|
strcpy(*(++p), "Hi there");
|
|
|
|
|
}
|
2009-10-30 07:29:54 +08:00
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test11
|
2009-10-30 07:29:54 +08:00
|
|
|
void test11() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i32 0, i32 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:29:54 +08:00
|
|
|
strcpy(gp = gbuf, "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test12
|
2009-10-30 07:29:54 +08:00
|
|
|
void test12() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:29:54 +08:00
|
|
|
strcpy(++gp, "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test13
|
2009-10-30 07:29:54 +08:00
|
|
|
void test13() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:29:54 +08:00
|
|
|
strcpy(gp++, "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test14
|
2009-10-30 07:29:54 +08:00
|
|
|
void test14() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:29:54 +08:00
|
|
|
strcpy(--gp, "Hi there");
|
|
|
|
|
}
|
|
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test15
|
2009-10-30 07:29:54 +08:00
|
|
|
void test15() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{..*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:29:54 +08:00
|
|
|
strcpy(gp--, "Hi there");
|
|
|
|
|
}
|
2009-10-30 07:34:20 +08:00
|
|
|
|
2013-08-15 14:47:53 +08:00
|
|
|
// CHECK-LABEL: define void @test16
|
2009-10-30 07:34:20 +08:00
|
|
|
void test16() {
|
2009-12-08 03:22:29 +08:00
|
|
|
// CHECK-NOT: __strcpy_chk
|
2015-03-14 02:21:46 +08:00
|
|
|
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i32 0, i32 0))
|
2009-10-30 07:34:20 +08:00
|
|
|
strcpy(gp += 1, "Hi there");
|
|
|
|
|
}
|
2010-01-04 02:18:37 +08:00
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test17
|
2010-01-04 02:18:37 +08:00
|
|
|
void test17() {
|
|
|
|
|
// CHECK: store i32 -1
|
|
|
|
|
gi = __builtin_object_size(gp++, 0);
|
|
|
|
|
// CHECK: store i32 -1
|
|
|
|
|
gi = __builtin_object_size(gp++, 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(gp++, 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(gp++, 3);
|
|
|
|
|
}
|
2012-07-14 04:48:52 +08:00
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test18
|
2012-07-14 04:48:52 +08:00
|
|
|
unsigned test18(int cond) {
|
|
|
|
|
int a[4], b[4];
|
|
|
|
|
// CHECK: phi i32*
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64
|
|
|
|
|
return __builtin_object_size(cond ? a : b, 0);
|
|
|
|
|
}
|
2015-08-19 10:19:07 +08:00
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test19
|
2015-08-19 10:19:07 +08:00
|
|
|
void test19() {
|
|
|
|
|
struct {
|
|
|
|
|
int a, b;
|
|
|
|
|
} foo;
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 8
|
|
|
|
|
gi = __builtin_object_size(&foo.a, 0);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&foo.a, 1);
|
|
|
|
|
// CHECK: store i32 8
|
|
|
|
|
gi = __builtin_object_size(&foo.a, 2);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&foo.a, 3);
|
2015-09-05 05:28:13 +08:00
|
|
|
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&foo.b, 0);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&foo.b, 1);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&foo.b, 2);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&foo.b, 3);
|
2015-08-19 10:19:07 +08:00
|
|
|
}
|
|
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test20
|
2015-08-19 10:19:07 +08:00
|
|
|
void test20() {
|
|
|
|
|
struct { int t[10]; } t[10];
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 380
|
|
|
|
|
gi = __builtin_object_size(&t[0].t[5], 0);
|
|
|
|
|
// CHECK: store i32 20
|
|
|
|
|
gi = __builtin_object_size(&t[0].t[5], 1);
|
|
|
|
|
// CHECK: store i32 380
|
|
|
|
|
gi = __builtin_object_size(&t[0].t[5], 2);
|
|
|
|
|
// CHECK: store i32 20
|
|
|
|
|
gi = __builtin_object_size(&t[0].t[5], 3);
|
|
|
|
|
}
|
|
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test21
|
2015-08-19 10:19:07 +08:00
|
|
|
void test21() {
|
|
|
|
|
struct { int t; } t;
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t + 1, 0);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t + 1, 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t + 1, 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t + 1, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t.t + 1, 0);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t.t + 1, 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t.t + 1, 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t.t + 1, 3);
|
|
|
|
|
}
|
|
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test22
|
2015-08-19 10:19:07 +08:00
|
|
|
void test22() {
|
|
|
|
|
struct { int t[10]; } t[10];
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[10], 0);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[10], 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[10], 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[10], 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[9].t[10], 0);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[9].t[10], 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[9].t[10], 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[9].t[10], 3);
|
2015-09-05 05:28:13 +08:00
|
|
|
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[0] + sizeof(t), 0);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[0] + sizeof(t), 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[0] + sizeof(t), 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[0] + sizeof(t), 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[9].t[0] + 10*sizeof(t[0].t), 0);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[9].t[0] + 10*sizeof(t[0].t), 1);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[9].t[0] + 10*sizeof(t[0].t), 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((char*)&t[9].t[0] + 10*sizeof(t[0].t), 3);
|
2015-08-19 10:19:07 +08:00
|
|
|
}
|
|
|
|
|
|
2015-09-05 05:28:13 +08:00
|
|
|
struct Test23Ty { int a; int t[10]; };
|
2015-08-19 10:19:07 +08:00
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test23
|
2015-09-05 05:28:13 +08:00
|
|
|
void test23(struct Test23Ty *p) {
|
2015-08-19 10:19:07 +08:00
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(p, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(p, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(p, 2);
|
|
|
|
|
// Note: this is currently fixed at 0 because LLVM doesn't have sufficient
|
|
|
|
|
// data to correctly handle type=3
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(p, 3);
|
|
|
|
|
|
2015-09-05 05:28:13 +08:00
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&p->a, 0);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&p->a, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(&p->a, 2);
|
|
|
|
|
// CHECK: store i32 4
|
|
|
|
|
gi = __builtin_object_size(&p->a, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&p->t[5], 0);
|
|
|
|
|
// CHECK: store i32 20
|
|
|
|
|
gi = __builtin_object_size(&p->t[5], 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(&p->t[5], 2);
|
|
|
|
|
// CHECK: store i32 20
|
|
|
|
|
gi = __builtin_object_size(&p->t[5], 3);
|
|
|
|
|
}
|
2015-08-19 10:19:07 +08:00
|
|
|
|
|
|
|
|
// PR24493 -- ICE if __builtin_object_size called with NULL and (Type & 1) != 0
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test24
|
2015-08-19 10:19:07 +08:00
|
|
|
void test24() {
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size((void*)0, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size((void*)0, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size((void*)0, 2);
|
|
|
|
|
// Note: Currently fixed at zero because LLVM can't handle type=3 correctly.
|
|
|
|
|
// Hopefully will be lowered properly in the future.
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((void*)0, 3);
|
|
|
|
|
}
|
|
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test25
|
2015-08-19 10:19:07 +08:00
|
|
|
void test25() {
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size((void*)0x1000, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size((void*)0x1000, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size((void*)0x1000, 2);
|
|
|
|
|
// Note: Currently fixed at zero because LLVM can't handle type=3 correctly.
|
|
|
|
|
// Hopefully will be lowered properly in the future.
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((void*)0x1000, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size((void*)0 + 0x1000, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size((void*)0 + 0x1000, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size((void*)0 + 0x1000, 2);
|
|
|
|
|
// Note: Currently fixed at zero because LLVM can't handle type=3 correctly.
|
|
|
|
|
// Hopefully will be lowered properly in the future.
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size((void*)0 + 0x1000, 3);
|
|
|
|
|
}
|
2015-09-05 05:28:13 +08:00
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test26
|
2015-09-05 05:28:13 +08:00
|
|
|
void test26() {
|
|
|
|
|
struct { int v[10]; } t[10];
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 316
|
|
|
|
|
gi = __builtin_object_size(&t[1].v[11], 0);
|
|
|
|
|
// CHECK: store i32 312
|
|
|
|
|
gi = __builtin_object_size(&t[1].v[12], 1);
|
|
|
|
|
// CHECK: store i32 308
|
|
|
|
|
gi = __builtin_object_size(&t[1].v[13], 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&t[1].v[14], 3);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct Test27IncompleteTy;
|
|
|
|
|
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test27
|
2015-09-05 05:28:13 +08:00
|
|
|
void test27(struct Test27IncompleteTy *t) {
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(t, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(t, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(t, 2);
|
|
|
|
|
// Note: this is currently fixed at 0 because LLVM doesn't have sufficient
|
|
|
|
|
// data to correctly handle type=3
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(t, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&test27, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&test27, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(&test27, 2);
|
|
|
|
|
// Note: this is currently fixed at 0 because LLVM doesn't have sufficient
|
|
|
|
|
// data to correctly handle type=3
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(&test27, 3);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// The intent of this test is to ensure that __builtin_object_size treats `&foo`
|
|
|
|
|
// and `(T*)&foo` identically, when used as the pointer argument.
|
2015-10-16 09:49:01 +08:00
|
|
|
// CHECK-LABEL: @test28
|
2015-09-05 05:28:13 +08:00
|
|
|
void test28() {
|
|
|
|
|
struct { int v[10]; } t[10];
|
|
|
|
|
|
|
|
|
|
#define addCasts(s) ((char*)((short*)(s)))
|
|
|
|
|
// CHECK: store i32 360
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1]), 0);
|
|
|
|
|
// CHECK: store i32 360
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1]), 1);
|
|
|
|
|
// CHECK: store i32 360
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1]), 2);
|
|
|
|
|
// CHECK: store i32 360
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1]), 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: store i32 356
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1].v[1]), 0);
|
|
|
|
|
// CHECK: store i32 36
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1].v[1]), 1);
|
|
|
|
|
// CHECK: store i32 356
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1].v[1]), 2);
|
|
|
|
|
// CHECK: store i32 36
|
|
|
|
|
gi = __builtin_object_size(addCasts(&t[1].v[1]), 3);
|
|
|
|
|
#undef addCasts
|
|
|
|
|
}
|
2015-10-16 09:49:01 +08:00
|
|
|
|
|
|
|
|
struct DynStructVar {
|
|
|
|
|
char fst[16];
|
|
|
|
|
char snd[];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct DynStruct0 {
|
|
|
|
|
char fst[16];
|
|
|
|
|
char snd[0];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct DynStruct1 {
|
|
|
|
|
char fst[16];
|
|
|
|
|
char snd[1];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct StaticStruct {
|
|
|
|
|
char fst[16];
|
|
|
|
|
char snd[2];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: @test29
|
|
|
|
|
void test29(struct DynStructVar *dv, struct DynStruct0 *d0,
|
|
|
|
|
struct DynStruct1 *d1, struct StaticStruct *ss) {
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(dv->snd, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(dv->snd, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(dv->snd, 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(dv->snd, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(d0->snd, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(d0->snd, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(d0->snd, 2);
|
|
|
|
|
// CHECK: store i32 0
|
|
|
|
|
gi = __builtin_object_size(d0->snd, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(d1->snd, 0);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(d1->snd, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(d1->snd, 2);
|
|
|
|
|
// CHECK: store i32 1
|
|
|
|
|
gi = __builtin_object_size(d1->snd, 3);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(ss->snd, 0);
|
|
|
|
|
// CHECK: store i32 2
|
|
|
|
|
gi = __builtin_object_size(ss->snd, 1);
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
|
|
|
|
gi = __builtin_object_size(ss->snd, 2);
|
|
|
|
|
// CHECK: store i32 2
|
|
|
|
|
gi = __builtin_object_size(ss->snd, 3);
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}
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// CHECK-LABEL: @test30
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void test30() {
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struct { struct DynStruct1 fst, snd; } *nested;
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
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gi = __builtin_object_size(nested->fst.snd, 0);
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// CHECK: store i32 1
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gi = __builtin_object_size(nested->fst.snd, 1);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
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gi = __builtin_object_size(nested->fst.snd, 2);
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// CHECK: store i32 1
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gi = __builtin_object_size(nested->fst.snd, 3);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
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gi = __builtin_object_size(nested->snd.snd, 0);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
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gi = __builtin_object_size(nested->snd.snd, 1);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
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gi = __builtin_object_size(nested->snd.snd, 2);
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// CHECK: store i32 1
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gi = __builtin_object_size(nested->snd.snd, 3);
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union { struct DynStruct1 d1; char c[1]; } *u;
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
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gi = __builtin_object_size(u->c, 0);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
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gi = __builtin_object_size(u->c, 1);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
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gi = __builtin_object_size(u->c, 2);
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// CHECK: store i32 1
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|
gi = __builtin_object_size(u->c, 3);
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// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
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|
gi = __builtin_object_size(u->d1.snd, 0);
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|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
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|
|
gi = __builtin_object_size(u->d1.snd, 1);
|
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|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true)
|
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|
|
gi = __builtin_object_size(u->d1.snd, 2);
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|
// CHECK: store i32 1
|
|
|
|
|
gi = __builtin_object_size(u->d1.snd, 3);
|
|
|
|
|
}
|
|
|
|
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|
|
// CHECK-LABEL: @test31
|
|
|
|
|
void test31() {
|
|
|
|
|
// Miscellaneous 'writing off the end' detection tests
|
|
|
|
|
struct DynStructVar *dsv;
|
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|
|
|
struct DynStruct0 *ds0;
|
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|
|
struct DynStruct1 *ds1;
|
|
|
|
|
struct StaticStruct *ss;
|
|
|
|
|
|
|
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|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(ds1[9].snd, 1);
|
|
|
|
|
|
2016-02-25 02:38:35 +08:00
|
|
|
// CHECK: store i32 2
|
2015-10-16 09:49:01 +08:00
|
|
|
gi = __builtin_object_size(&ss[9].snd[0], 1);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&ds1[9].snd[0], 1);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&ds0[9].snd[0], 1);
|
|
|
|
|
|
|
|
|
|
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false)
|
|
|
|
|
gi = __builtin_object_size(&dsv[9].snd[0], 1);
|
|
|
|
|
}
|