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llvm-project/clang/test/CodeGen/object-size.c
James Y Knight f5f1b0e59e [opaque pointer types] Cleanup CGBuilder's Create*GEP. 
Some of these functions take some extraneous arguments, e.g. EltSize,
Offset, which are computable from the Type and DataLayout.

Add some asserts to ensure that the computed values are consistent
with the passed-in values, in preparation for eliminating the
extraneous arguments. This also asserts that the Type is an Array for
the calls named "Array" and a Struct for the calls named "Struct".

Then, correct a couple of errors:

1. Using CreateStructGEP on an array type. (this causes the majority
   of the test differences, as struct GEPs are created with i32
   indices, while array GEPs are created with i64 indices)

2. Passing the wrong Offset to CreateStructGEP in TargetInfo.cpp on
   x86-64 NACL (which uses 32-bit pointers).

Differential Revision: https://reviews.llvm.org/D57766

llvm-svn: 353529
2019-02-08 15:34:12 +00:00

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// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s
// RUN: %clang_cc1 -DDYNAMIC -triple x86_64-apple-darwin -emit-llvm %s -o - 2>&1 | FileCheck %s
#ifndef DYNAMIC
#define OBJECT_SIZE_BUILTIN __builtin_object_size
#else
#define OBJECT_SIZE_BUILTIN __builtin_dynamic_object_size
#endif
#define strcpy(dest, src) \
((OBJECT_SIZE_BUILTIN(dest, 0) != -1ULL) \
? __builtin___strcpy_chk (dest, src, OBJECT_SIZE_BUILTIN(dest, 1)) \
: __inline_strcpy_chk(dest, src))
static char *__inline_strcpy_chk (char *dest, const char *src) {
return __builtin___strcpy_chk(dest, src, OBJECT_SIZE_BUILTIN(dest, 1));
}
char gbuf[63];
char *gp;
int gi, gj;
// CHECK-LABEL: define void @test1
void test1() {
// 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, i64 0, i64 0), i64 59)
strcpy(&gbuf[4], "Hi there");
}
// CHECK-LABEL: define void @test2
void test2() {
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i64 63)
strcpy(gbuf, "Hi there");
}
// CHECK-LABEL: define void @test3
void test3() {
// 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, i64 0, i64 0), i64 0)
strcpy(&gbuf[100], "Hi there");
}
// CHECK-LABEL: define void @test4
void test4() {
// 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, i64 0, i64 0), i64 0)
strcpy((char*)(void*)&gbuf[-1], "Hi there");
}
// CHECK-LABEL: define void @test5
void test5() {
// CHECK: = load i8*, i8** @gp
// CHECK-NEXT:= call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
strcpy(gp, "Hi there");
}
// CHECK-LABEL: define void @test6
void test6() {
char buf[57];
// CHECK: = call i8* @__strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i64 53)
strcpy(&buf[4], "Hi there");
}
// CHECK-LABEL: define void @test7
void test7() {
int i;
// Ensure we only evaluate the side-effect once.
// CHECK: = add
// CHECK-NOT: = add
// CHECK: = call i8* @__strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i64 63)
strcpy((++i, gbuf), "Hi there");
}
// CHECK-LABEL: define void @test8
void test8() {
char *buf[50];
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(buf[++gi], "Hi there");
}
// CHECK-LABEL: define void @test9
void test9() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy((char *)((++gi) + gj), "Hi there");
}
// CHECK-LABEL: define void @test10
char **p;
void test10() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(*(++p), "Hi there");
}
// CHECK-LABEL: define void @test11
void test11() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @gbuf, i64 0, i64 0), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(gp = gbuf, "Hi there");
}
// CHECK-LABEL: define void @test12
void test12() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(++gp, "Hi there");
}
// CHECK-LABEL: define void @test13
void test13() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(gp++, "Hi there");
}
// CHECK-LABEL: define void @test14
void test14() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(--gp, "Hi there");
}
// CHECK-LABEL: define void @test15
void test15() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{..*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(gp--, "Hi there");
}
// CHECK-LABEL: define void @test16
void test16() {
// CHECK-NOT: __strcpy_chk
// CHECK: = call i8* @__inline_strcpy_chk(i8* %{{.*}}, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
strcpy(gp += 1, "Hi there");
}
// CHECK-LABEL: @test17
void test17() {
// CHECK: store i32 -1
gi = OBJECT_SIZE_BUILTIN(gp++, 0);
// CHECK: store i32 -1
gi = OBJECT_SIZE_BUILTIN(gp++, 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(gp++, 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(gp++, 3);
}
// CHECK-LABEL: @test18
unsigned test18(int cond) {
int a[4], b[4];
// CHECK: phi i32*
// CHECK: call i64 @llvm.objectsize.i64
return OBJECT_SIZE_BUILTIN(cond ? a : b, 0);
}
// CHECK-LABEL: @test19
void test19() {
struct {
int a, b;
} foo;
// CHECK: store i32 8
gi = OBJECT_SIZE_BUILTIN(&foo.a, 0);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&foo.a, 1);
// CHECK: store i32 8
gi = OBJECT_SIZE_BUILTIN(&foo.a, 2);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&foo.a, 3);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&foo.b, 0);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&foo.b, 1);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&foo.b, 2);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&foo.b, 3);
}
// CHECK-LABEL: @test20
void test20() {
struct { int t[10]; } t[10];
// CHECK: store i32 380
gi = OBJECT_SIZE_BUILTIN(&t[0].t[5], 0);
// CHECK: store i32 20
gi = OBJECT_SIZE_BUILTIN(&t[0].t[5], 1);
// CHECK: store i32 380
gi = OBJECT_SIZE_BUILTIN(&t[0].t[5], 2);
// CHECK: store i32 20
gi = OBJECT_SIZE_BUILTIN(&t[0].t[5], 3);
}
// CHECK-LABEL: @test21
void test21() {
struct { int t; } t;
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t + 1, 0);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t + 1, 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t + 1, 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t + 1, 3);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t.t + 1, 0);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t.t + 1, 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t.t + 1, 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t.t + 1, 3);
}
// CHECK-LABEL: @test22
void test22() {
struct { int t[10]; } t[10];
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[10], 0);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[10], 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[10], 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[10], 3);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[9].t[10], 0);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[9].t[10], 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[9].t[10], 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[9].t[10], 3);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[0] + sizeof(t), 0);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[0] + sizeof(t), 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[0] + sizeof(t), 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[0] + sizeof(t), 3);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[9].t[0] + 10*sizeof(t[0].t), 0);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[9].t[0] + 10*sizeof(t[0].t), 1);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[9].t[0] + 10*sizeof(t[0].t), 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN((char*)&t[9].t[0] + 10*sizeof(t[0].t), 3);
}
struct Test23Ty { int a; int t[10]; };
// CHECK-LABEL: @test23
void test23(struct Test23Ty *p) {
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(p, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(p, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(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 = OBJECT_SIZE_BUILTIN(p, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&p->a, 0);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&p->a, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&p->a, 2);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&p->a, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&p->t[5], 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&p->t[5], 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&p->t[5], 2);
// CHECK: store i32 20
gi = OBJECT_SIZE_BUILTIN(&p->t[5], 3);
}
// PR24493 -- ICE if OBJECT_SIZE_BUILTIN called with NULL and (Type & 1) != 0
// CHECK-LABEL: @test24
void test24() {
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((void*)0, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((void*)0, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((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 = OBJECT_SIZE_BUILTIN((void*)0, 3);
}
// CHECK-LABEL: @test25
void test25() {
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((void*)0x1000, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((void*)0x1000, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((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 = OBJECT_SIZE_BUILTIN((void*)0x1000, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((void*)0 + 0x1000, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((void*)0 + 0x1000, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN((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 = OBJECT_SIZE_BUILTIN((void*)0 + 0x1000, 3);
}
// CHECK-LABEL: @test26
void test26() {
struct { int v[10]; } t[10];
// CHECK: store i32 316
gi = OBJECT_SIZE_BUILTIN(&t[1].v[11], 0);
// CHECK: store i32 312
gi = OBJECT_SIZE_BUILTIN(&t[1].v[12], 1);
// CHECK: store i32 308
gi = OBJECT_SIZE_BUILTIN(&t[1].v[13], 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(&t[1].v[14], 3);
}
struct Test27IncompleteTy;
// CHECK-LABEL: @test27
void test27(struct Test27IncompleteTy *t) {
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(t, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(t, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(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 = OBJECT_SIZE_BUILTIN(t, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&test27, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&test27, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* {{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&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 = OBJECT_SIZE_BUILTIN(&test27, 3);
}
// The intent of this test is to ensure that OBJECT_SIZE_BUILTIN treats `&foo`
// and `(T*)&foo` identically, when used as the pointer argument.
// CHECK-LABEL: @test28
void test28() {
struct { int v[10]; } t[10];
#define addCasts(s) ((char*)((short*)(s)))
// CHECK: store i32 360
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1]), 0);
// CHECK: store i32 360
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1]), 1);
// CHECK: store i32 360
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1]), 2);
// CHECK: store i32 360
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1]), 3);
// CHECK: store i32 356
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1].v[1]), 0);
// CHECK: store i32 36
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1].v[1]), 1);
// CHECK: store i32 356
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1].v[1]), 2);
// CHECK: store i32 36
gi = OBJECT_SIZE_BUILTIN(addCasts(&t[1].v[1]), 3);
#undef addCasts
}
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, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(dv->snd, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(dv->snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(dv->snd, 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(dv->snd, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(d0->snd, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(d0->snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(d0->snd, 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(d0->snd, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(d1->snd, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(d1->snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(d1->snd, 2);
// CHECK: store i32 1
gi = OBJECT_SIZE_BUILTIN(d1->snd, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(ss->snd, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(ss->snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(ss->snd, 2);
// CHECK: store i32 2
gi = OBJECT_SIZE_BUILTIN(ss->snd, 3);
}
// CHECK-LABEL: @test30
void test30() {
struct { struct DynStruct1 fst, snd; } *nested;
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(nested->fst.snd, 0);
// CHECK: store i32 1
gi = OBJECT_SIZE_BUILTIN(nested->fst.snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(nested->fst.snd, 2);
// CHECK: store i32 1
gi = OBJECT_SIZE_BUILTIN(nested->fst.snd, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(nested->snd.snd, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(nested->snd.snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(nested->snd.snd, 2);
// CHECK: store i32 1
gi = OBJECT_SIZE_BUILTIN(nested->snd.snd, 3);
union { struct DynStruct1 d1; char c[1]; } *u;
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(u->c, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(u->c, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(u->c, 2);
// CHECK: store i32 1
gi = OBJECT_SIZE_BUILTIN(u->c, 3);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(u->d1.snd, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(u->d1.snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(u->d1.snd, 2);
// CHECK: store i32 1
gi = OBJECT_SIZE_BUILTIN(u->d1.snd, 3);
}
// CHECK-LABEL: @test31
void test31() {
// Miscellaneous 'writing off the end' detection tests
struct DynStructVar *dsv;
struct DynStruct0 *ds0;
struct DynStruct1 *ds1;
struct StaticStruct *ss;
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(ds1[9].snd, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&ss[9].snd[0], 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&ds1[9].snd[0], 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&ds0[9].snd[0], 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(&dsv[9].snd[0], 1);
}
// CHECK-LABEL: @PR30346
void PR30346() {
struct sa_family_t {};
struct sockaddr {
struct sa_family_t sa_family;
char sa_data[14];
};
struct sockaddr *sa;
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(sa->sa_data, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(sa->sa_data, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1
gi = OBJECT_SIZE_BUILTIN(sa->sa_data, 2);
// CHECK: store i32 14
gi = OBJECT_SIZE_BUILTIN(sa->sa_data, 3);
}
extern char incomplete_char_array[];
// CHECK-LABEL: @incomplete_and_function_types
int incomplete_and_function_types() {
// CHECK: call i64 @llvm.objectsize.i64.p0i8
gi = OBJECT_SIZE_BUILTIN(incomplete_char_array, 0);
// CHECK: call i64 @llvm.objectsize.i64.p0i8
gi = OBJECT_SIZE_BUILTIN(incomplete_char_array, 1);
// CHECK: call i64 @llvm.objectsize.i64.p0i8
gi = OBJECT_SIZE_BUILTIN(incomplete_char_array, 2);
// CHECK: store i32 0
gi = OBJECT_SIZE_BUILTIN(incomplete_char_array, 3);
}
// Flips between the pointer and lvalue evaluator a lot.
void deeply_nested() {
struct {
struct {
struct {
struct {
int e[2];
char f; // Inhibit our writing-off-the-end check
} d[2];
} c[2];
} b[2];
} *a;
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&a->b[1].c[1].d[1].e[1], 1);
// CHECK: store i32 4
gi = OBJECT_SIZE_BUILTIN(&a->b[1].c[1].d[1].e[1], 3);
}
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