[clang] [llvm] [clang] Use separator for large numeric values in overflow diagnostic (PR #80939)
Atousa Duprat via llvm-commits
llvm-commits at lists.llvm.org
Tue Feb 6 22:22:15 PST 2024
https://github.com/Atousa updated https://github.com/llvm/llvm-project/pull/80939
>From 7dd1c213b650550e0fd47ff1c9d79ee3b510eddb Mon Sep 17 00:00:00 2001
From: Atousa Duprat <atousa.p at gmail.com>
Date: Tue, 6 Feb 2024 21:02:05 -0800
Subject: [PATCH] [clang] Use separator for large numeric values in overflow
diagnostic
Add functionality to APInt::toString() that allows it to insert
separators between groups of digits, using the C++ litteral
separator ' between groups.
Fixes issue #58228
---
clang/lib/AST/ExprConstant.cpp | 3 +-
clang/test/C/drs/dr0xx.c | 2 +-
clang/test/C/drs/dr2xx.c | 2 +-
clang/test/Sema/integer-overflow.c | 100 +++++++++---------
clang/test/Sema/switch-1.c | 6 +-
clang/test/SemaCXX/enum.cpp | 4 +-
clang/test/SemaCXX/integer-overflow.cpp | 106 ++++++++++----------
clang/test/SemaObjC/integer-overflow.m | 4 +-
clang/test/SemaObjC/objc-literal-nsnumber.m | 2 +-
llvm/include/llvm/ADT/APInt.h | 3 +-
llvm/include/llvm/ADT/StringExtras.h | 5 +-
llvm/lib/Support/APInt.cpp | 24 ++++-
llvm/unittests/ADT/APIntTest.cpp | 35 +++++++
13 files changed, 178 insertions(+), 118 deletions(-)
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 089bc2094567f..a46887d6cf1be 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -2774,7 +2774,8 @@ static bool CheckedIntArithmetic(EvalInfo &Info, const Expr *E,
if (Info.checkingForUndefinedBehavior())
Info.Ctx.getDiagnostics().Report(E->getExprLoc(),
diag::warn_integer_constant_overflow)
- << toString(Result, 10) << E->getType() << E->getSourceRange();
+ << toString(Result, 10, Result.isSigned(), false, true, true)
+ << E->getType() << E->getSourceRange();
return HandleOverflow(Info, E, Value, E->getType());
}
return true;
diff --git a/clang/test/C/drs/dr0xx.c b/clang/test/C/drs/dr0xx.c
index d9c1fbe4ee40a..c93cfb63d604c 100644
--- a/clang/test/C/drs/dr0xx.c
+++ b/clang/test/C/drs/dr0xx.c
@@ -214,7 +214,7 @@ _Static_assert(__builtin_types_compatible_p(struct S { int a; }, union U { int a
*/
void dr031(int i) {
switch (i) {
- case __INT_MAX__ + 1: break; /* expected-warning {{overflow in expression; result is -2147483648 with type 'int'}} */
+ case __INT_MAX__ + 1: break; /* expected-warning {{overflow in expression; result is -2'147'483'648 with type 'int'}} */
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wswitch"
/* Silence the targets which issue:
diff --git a/clang/test/C/drs/dr2xx.c b/clang/test/C/drs/dr2xx.c
index 9c8d77518ab55..1b68b65acca6a 100644
--- a/clang/test/C/drs/dr2xx.c
+++ b/clang/test/C/drs/dr2xx.c
@@ -277,7 +277,7 @@ void dr258(void) {
void dr261(void) {
/* This is still an integer constant expression despite the overflow. */
enum e1 {
- ex1 = __INT_MAX__ + 1 /* expected-warning {{overflow in expression; result is -2147483648 with type 'int'}} */
+ ex1 = __INT_MAX__ + 1 /* expected-warning {{overflow in expression; result is -2'147'483'648 with type 'int'}} */
};
/* This is not an integer constant expression, because of the comma operator,
diff --git a/clang/test/Sema/integer-overflow.c b/clang/test/Sema/integer-overflow.c
index cf822f346e8b2..220fc1bed515a 100644
--- a/clang/test/Sema/integer-overflow.c
+++ b/clang/test/Sema/integer-overflow.c
@@ -11,169 +11,169 @@ uint64_t f0(uint64_t);
uint64_t f1(uint64_t, uint32_t);
uint64_t f2(uint64_t, ...);
-static const uint64_t overflow = 1 * 4608 * 1024 * 1024; // expected-warning {{overflow in expression; result is 536870912 with type 'int'}}
+static const uint64_t overflow = 1 * 4608 * 1024 * 1024; // expected-warning {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t check_integer_overflows(int i) {
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t overflow = 4608 * 1024 * 1024,
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow2 = (uint64_t)(4608 * 1024 * 1024),
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow3 = (uint64_t)(4608 * 1024 * 1024 * i),
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow4 = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL),
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
multi_overflow = (uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow += overflow2 = overflow3 = (uint64_t)(4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow += overflow2 = overflow3 = 4608 * 1024 * 1024;
uint64_t not_overflow = 4608 * 1024 * 1024ULL;
uint64_t not_overflow2 = (1ULL * ((uint64_t)(4608) * (1024 * 1024)) + 2ULL);
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
overflow = 4608 * 1024 * 1024 ? 4608 * 1024 * 1024 : 0;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow = 0 ? 0 : 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if (4608 * 1024 * 1024)
return 0;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)(4608 * 1024 * 1024))
return 1;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)(4608 * 1024 * 1024))
return 2;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)(4608 * 1024 * 1024 * i))
return 3;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL))
return 4;
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)))
return 5;
switch (i) {
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
case 4608 * 1024 * 1024:
return 6;
-// expected-warning at +1 {{overflow in expression; result is 537919488 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 537'919'488 with type 'int'}}
case (uint64_t)(4609 * 1024 * 1024):
return 7;
// expected-error at +1 {{expression is not an integer constant expression}}
case ((uint64_t)(4608 * 1024 * 1024 * i)):
return 8;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
case ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL)):
return 9;
-// expected-warning at +2 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +2 2{{overflow in expression; result is 536'870'912 with type 'int'}}
// expected-warning at +1 {{overflow converting case value to switch condition type (288230376151711744 to 0)}}
case ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024))):
return 10;
}
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while (4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)(4608 * 1024 * 1024 * i));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while (4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)(4608 * 1024 * 1024 * i));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
for (uint64_t i = 4608 * 1024 * 1024;
(uint64_t)(4608 * 1024 * 1024);
i += (uint64_t)(4608 * 1024 * 1024 * i));
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 2{{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 2{{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 2{{overflow in expression; result is 536'870'912 with type 'int'}}
for (uint64_t i = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL);
((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
i = ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024))));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
_Complex long long x = 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(__real__ x) = 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(__imag__ x) = 4608 * 1024 * 1024;
-// expected-warning at +4 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +4 {{overflow in expression; result is 536'870'912 with type 'int'}}
// expected-warning at +3 {{array index 536870912 is past the end of the array (that has type 'uint64_t[10]' (aka 'unsigned long long[10]'))}}
// expected-note at +1 {{array 'a' declared here}}
uint64_t a[10];
a[4608 * 1024 * 1024] = 1i;
-// expected-warning at +2 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +2 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t *b;
uint64_t b2 = b[4608 * 1024 * 1024] + 1;
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
(void)((i ? (4608 * 1024 * 1024) : (4608 * 1024 * 1024)) + 1);
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
return ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024)));
}
void check_integer_overflows_in_function_calls(void) {
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(void)f0(4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t x = f0(4608 * 1024 * 1024);
-// expected-warning at +2 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +2 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t (*f0_ptr)(uint64_t) = &f0;
(void)(*f0_ptr)(4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(void)f2(0, f0(4608 * 1024 * 1024));
}
void check_integer_overflows_in_array_size(void) {
- int arr[4608 * 1024 * 1024]; // expected-warning {{overflow in expression; result is 536870912 with type 'int'}}
+ int arr[4608 * 1024 * 1024]; // expected-warning {{overflow in expression; result is 536'870'912 with type 'int'}}
}
struct s {
diff --git a/clang/test/Sema/switch-1.c b/clang/test/Sema/switch-1.c
index 95e64748fb1fb..09221990ac11d 100644
--- a/clang/test/Sema/switch-1.c
+++ b/clang/test/Sema/switch-1.c
@@ -7,7 +7,7 @@ int f(int i) {
switch (i) {
case 2147483647 + 2:
#if (__cplusplus <= 199711L) // C or C++03 or earlier modes
- // expected-warning at -2 {{overflow in expression; result is -2147483647 with type 'int'}}
+ // expected-warning at -2 {{overflow in expression; result is -2'147'483'647 with type 'int'}}
#else
// expected-error at -4 {{case value is not a constant expression}} \
// expected-note at -4 {{value 2147483649 is outside the range of representable values of type 'int'}}
@@ -23,7 +23,7 @@ int f(int i) {
return 2;
case (123456 *789012) + 1:
#if (__cplusplus <= 199711L)
- // expected-warning at -2 {{overflow in expression; result is -1375982336 with type 'int'}}
+ // expected-warning at -2 {{overflow in expression; result is -1'375'982'336 with type 'int'}}
#else
// expected-error at -4 {{case value is not a constant expression}} \
// expected-note at -4 {{value 97408265472 is outside the range of representable values of type 'int'}}
@@ -47,7 +47,7 @@ int f(int i) {
case 2147483647:
return 0;
}
- return (i, 65537) * 65537; // expected-warning {{overflow in expression; result is 131073 with type 'int'}} \
+ return (i, 65537) * 65537; // expected-warning {{overflow in expression; result is 131'073 with type 'int'}} \
// expected-warning {{left operand of comma operator has no effect}}
}
diff --git a/clang/test/SemaCXX/enum.cpp b/clang/test/SemaCXX/enum.cpp
index fc65fd16f8c30..c482b3c571ab4 100644
--- a/clang/test/SemaCXX/enum.cpp
+++ b/clang/test/SemaCXX/enum.cpp
@@ -103,7 +103,7 @@ enum { overflow = 123456 * 234567 };
// expected-warning at -2 {{not an integral constant expression}}
// expected-note at -3 {{value 28958703552 is outside the range of representable values}}
#else
-// expected-warning at -5 {{overflow in expression; result is -1106067520 with type 'int'}}
+// expected-warning at -5 {{overflow in expression; result is -1'106'067'520 with type 'int'}}
#endif
// FIXME: This is not consistent with the above case.
@@ -112,7 +112,7 @@ enum NoFold : int { overflow2 = 123456 * 234567 };
// expected-error at -2 {{enumerator value is not a constant expression}}
// expected-note at -3 {{value 28958703552 is outside the range of representable values}}
#else
-// expected-warning at -5 {{overflow in expression; result is -1106067520 with type 'int'}}
+// expected-warning at -5 {{overflow in expression; result is -1'106'067'520 with type 'int'}}
// expected-warning at -6 {{extension}}
#endif
diff --git a/clang/test/SemaCXX/integer-overflow.cpp b/clang/test/SemaCXX/integer-overflow.cpp
index 0e8ad050aa14d..8be6690b92a6c 100644
--- a/clang/test/SemaCXX/integer-overflow.cpp
+++ b/clang/test/SemaCXX/integer-overflow.cpp
@@ -13,157 +13,157 @@ uint64_t f0(uint64_t);
uint64_t f1(uint64_t, uint32_t);
uint64_t f2(uint64_t, ...);
-static const uint64_t overflow = 1 * 4608 * 1024 * 1024; // expected-warning {{overflow in expression; result is 536870912 with type 'int'}}
+static const uint64_t overflow = 1 * 4608 * 1024 * 1024; // expected-warning {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t check_integer_overflows(int i) { //expected-note 0+{{declared here}}
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t overflow = 4608 * 1024 * 1024,
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow2 = (uint64_t)(4608 * 1024 * 1024),
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow3 = (uint64_t)(4608 * 1024 * 1024 * i),
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow4 = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL),
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow5 = static_cast<uint64_t>(4608 * 1024 * 1024),
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
multi_overflow = (uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow += overflow2 = overflow3 = (uint64_t)(4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow += overflow2 = overflow3 = 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow += overflow2 = overflow3 = static_cast<uint64_t>(4608 * 1024 * 1024);
uint64_t not_overflow = 4608 * 1024 * 1024ULL;
uint64_t not_overflow2 = (1ULL * ((uint64_t)(4608) * (1024 * 1024)) + 2ULL);
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
overflow = 4608 * 1024 * 1024 ? 4608 * 1024 * 1024 : 0;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
overflow = 0 ? 0 : 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if (4608 * 1024 * 1024)
return 0;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)(4608 * 1024 * 1024))
return 1;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if (static_cast<uint64_t>(4608 * 1024 * 1024))
return 1;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)(4608 * 1024 * 1024))
return 2;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)(4608 * 1024 * 1024 * i))
return 3;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
if ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL))
return 4;
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
if ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)))
return 5;
#if __cplusplus < 201103L
switch (i) {
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
case 4608 * 1024 * 1024:
return 6;
-// expected-warning at +1 {{overflow in expression; result is 537919488 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 537'919'488 with type 'int'}}
case (uint64_t)(4609 * 1024 * 1024):
return 7;
-// expected-warning at +1 {{overflow in expression; result is 537919488 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 537'919'488 with type 'int'}}
case 1 + static_cast<uint64_t>(4609 * 1024 * 1024):
return 7;
// expected-error at +1 {{expression is not an integral constant expression}}
case ((uint64_t)(4608 * 1024 * 1024 * i)):
return 8;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
case ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL)):
return 9;
-// expected-warning at +2 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +2 2{{overflow in expression; result is 536'870'912 with type 'int'}}
// expected-warning at +1 {{overflow converting case value to switch condition type (288230376151711744 to 0)}}
case ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024))):
return 10;
}
#endif
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while (4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while (static_cast<uint64_t>(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)(4608 * 1024 * 1024 * i));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while (4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while (static_cast<uint64_t>(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)(4608 * 1024 * 1024));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)(4608 * 1024 * 1024 * i));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((1ULL * ((4608) * ((1024) * (1024))) + 2ULL));
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
do { } while ((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
for (uint64_t i = 4608 * 1024 * 1024;
(uint64_t)(4608 * 1024 * 1024);
i += (uint64_t)(4608 * 1024 * 1024 * i));
-// expected-warning at +3 {{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 2{{overflow in expression; result is 536870912 with type 'int'}}
-// expected-warning at +3 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +3 {{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 2{{overflow in expression; result is 536'870'912 with type 'int'}}
+// expected-warning at +3 2{{overflow in expression; result is 536'870'912 with type 'int'}}
for (uint64_t i = (1ULL * ((4608) * ((1024) * (1024))) + 2ULL);
((uint64_t)((uint64_t)(4608 * 1024 * 1024) * (uint64_t)(4608 * 1024 * 1024)));
i = ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024))));
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
_Complex long long x = 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(__real__ x) = 4608 * 1024 * 1024;
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(__imag__ x) = 4608 * 1024 * 1024;
-// expected-warning at +2 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +2 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t a[10];
a[4608 * 1024 * 1024] = 1;
#if __cplusplus < 201103L
@@ -171,22 +171,22 @@ uint64_t check_integer_overflows(int i) { //expected-note 0+{{declared here}}
// expected-note at -4 {{array 'a' declared here}}
#endif
-// expected-warning at +1 2{{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 2{{overflow in expression; result is 536'870'912 with type 'int'}}
return ((4608 * 1024 * 1024) + ((uint64_t)(4608 * 1024 * 1024)));
}
void check_integer_overflows_in_function_calls() {
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(void)f0(4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t x = f0(4608 * 1024 * 1024);
-// expected-warning at +2 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +2 {{overflow in expression; result is 536'870'912 with type 'int'}}
uint64_t (*f0_ptr)(uint64_t) = &f0;
(void)(*f0_ptr)(4608 * 1024 * 1024);
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(void)f2(0, f0(4608 * 1024 * 1024));
}
diff --git a/clang/test/SemaObjC/integer-overflow.m b/clang/test/SemaObjC/integer-overflow.m
index 6d82e2951c1e6..255142729f8d5 100644
--- a/clang/test/SemaObjC/integer-overflow.m
+++ b/clang/test/SemaObjC/integer-overflow.m
@@ -9,10 +9,10 @@ - (int)add:(int)a with:(int)b {
}
- (void)testIntegerOverflows {
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(void)[self add:0 with:4608 * 1024 * 1024];
-// expected-warning at +1 {{overflow in expression; result is 536870912 with type 'int'}}
+// expected-warning at +1 {{overflow in expression; result is 536'870'912 with type 'int'}}
(void)[self add:0 with:[self add:4608 * 1024 * 1024 with:0]];
}
@end
diff --git a/clang/test/SemaObjC/objc-literal-nsnumber.m b/clang/test/SemaObjC/objc-literal-nsnumber.m
index aa7dc955fb5fe..a6c098947b0b2 100644
--- a/clang/test/SemaObjC/objc-literal-nsnumber.m
+++ b/clang/test/SemaObjC/objc-literal-nsnumber.m
@@ -64,7 +64,7 @@ int main(void) {
@-five; // expected-error{{@- must be followed by a number to form an NSNumber object}}
@+five; // expected-error{{@+ must be followed by a number to form an NSNumber object}}
NSNumber *av = @(1391126400000);
- NSNumber *bv = @(1391126400 * 1000); // expected-warning {{overflow in expression; result is -443003904 with type 'int'}}
+ NSNumber *bv = @(1391126400 * 1000); // expected-warning {{overflow in expression; result is -443'003'904 with type 'int'}}
NSNumber *cv = @(big * thousand);
}
diff --git a/llvm/include/llvm/ADT/APInt.h b/llvm/include/llvm/ADT/APInt.h
index 6f2f25548cc84..dd6d71b93334b 100644
--- a/llvm/include/llvm/ADT/APInt.h
+++ b/llvm/include/llvm/ADT/APInt.h
@@ -1626,7 +1626,8 @@ class [[nodiscard]] APInt {
/// SmallString. If Radix > 10, UpperCase determine the case of letter
/// digits.
void toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed,
- bool formatAsCLiteral = false, bool UpperCase = true) const;
+ bool formatAsCLiteral = false, bool UpperCase = true,
+ bool insertSeparators = false) const;
/// Considers the APInt to be unsigned and converts it into a string in the
/// radix given. The radix can be 2, 8, 10 16, or 36.
diff --git a/llvm/include/llvm/ADT/StringExtras.h b/llvm/include/llvm/ADT/StringExtras.h
index a24368924bc90..32f5828c92d05 100644
--- a/llvm/include/llvm/ADT/StringExtras.h
+++ b/llvm/include/llvm/ADT/StringExtras.h
@@ -329,9 +329,10 @@ inline std::string itostr(int64_t X) {
}
inline std::string toString(const APInt &I, unsigned Radix, bool Signed,
- bool formatAsCLiteral = false) {
+ bool formatAsCLiteral = false,
+ bool upperCase = true, bool addSeparators = false) {
SmallString<40> S;
- I.toString(S, Radix, Signed, formatAsCLiteral);
+ I.toString(S, Radix, Signed, formatAsCLiteral, upperCase, addSeparators);
return std::string(S);
}
diff --git a/llvm/lib/Support/APInt.cpp b/llvm/lib/Support/APInt.cpp
index 05b1526da95ff..a186b81bc6797 100644
--- a/llvm/lib/Support/APInt.cpp
+++ b/llvm/lib/Support/APInt.cpp
@@ -2161,7 +2161,8 @@ void APInt::fromString(unsigned numbits, StringRef str, uint8_t radix) {
}
void APInt::toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed,
- bool formatAsCLiteral, bool UpperCase) const {
+ bool formatAsCLiteral, bool UpperCase,
+ bool insertSeparators) const {
assert((Radix == 10 || Radix == 8 || Radix == 16 || Radix == 2 ||
Radix == 36) &&
"Radix should be 2, 8, 10, 16, or 36!");
@@ -2187,6 +2188,12 @@ void APInt::toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed,
}
}
+ // Number of digits in a group between separators
+ int Grouping = 4;
+ if (Radix == 8 || Radix == 10) {
+ Grouping = 3;
+ }
+
// First, check for a zero value and just short circuit the logic below.
if (isZero()) {
while (*Prefix) {
@@ -2223,9 +2230,14 @@ void APInt::toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed,
++Prefix;
};
+ int Pos = 0;
while (N) {
+ if (insertSeparators && Pos % Grouping == 0 && Pos > 0) {
+ *--BufPtr = '\'';
+ }
*--BufPtr = Digits[N % Radix];
N /= Radix;
+ Pos++;
}
Str.append(BufPtr, std::end(Buffer));
return;
@@ -2257,17 +2269,27 @@ void APInt::toString(SmallVectorImpl<char> &Str, unsigned Radix, bool Signed,
unsigned ShiftAmt = (Radix == 16 ? 4 : (Radix == 8 ? 3 : 1));
unsigned MaskAmt = Radix - 1;
+ int Pos = 0;
while (Tmp.getBoolValue()) {
unsigned Digit = unsigned(Tmp.getRawData()[0]) & MaskAmt;
+ if (insertSeparators && Pos % Grouping == 0 && Pos > 0) {
+ Str.push_back('\'');
+ }
Str.push_back(Digits[Digit]);
Tmp.lshrInPlace(ShiftAmt);
+ Pos++;
}
} else {
+ int Pos = 0;
while (Tmp.getBoolValue()) {
uint64_t Digit;
udivrem(Tmp, Radix, Tmp, Digit);
assert(Digit < Radix && "divide failed");
+ if (insertSeparators && Pos % Grouping == 0 && Pos > 0) {
+ Str.push_back('\'');
+ }
Str.push_back(Digits[Digit]);
+ Pos++;
}
}
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp
index 3b909f8f7d14e..e3e7e1e7bac65 100644
--- a/llvm/unittests/ADT/APIntTest.cpp
+++ b/llvm/unittests/ADT/APIntTest.cpp
@@ -1379,6 +1379,23 @@ TEST(APIntTest, toString) {
EXPECT_EQ(std::string(S), "0");
S.clear();
+ // with separators
+ APInt(64, 140).toString(S, 2, false, true, false, true);
+ EXPECT_EQ(std::string(S), "0b1000'1100");
+ S.clear();
+ APInt(64, 1024).toString(S, 8, false, true, false, true);
+ EXPECT_EQ(std::string(S), "02'000");
+ S.clear();
+ APInt(64, 1000000).toString(S, 10, false, true, false, true);
+ EXPECT_EQ(std::string(S), "1'000'000");
+ S.clear();
+ APInt(64, 1000000).toString(S, 16, false, true, true, true);
+ EXPECT_EQ(std::string(S), "0xF'4240");
+ S.clear();
+ APInt(64, 1'000'000'000).toString(S, 36, false, false, false, true);
+ EXPECT_EQ(std::string(S), "gj'dgxs");
+ S.clear();
+
isSigned = false;
APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
EXPECT_EQ(std::string(S), "0b11111111");
@@ -1415,6 +1432,24 @@ TEST(APIntTest, toString) {
APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
EXPECT_EQ(std::string(S), "-1");
S.clear();
+
+ // negative with separators
+ APInt(64, -140, isSigned).toString(S, 2, isSigned, true, false, true);
+ EXPECT_EQ(std::string(S), "-0b1000'1100");
+ S.clear();
+ APInt(64, -1024, isSigned).toString(S, 8, isSigned, true, false, true);
+ EXPECT_EQ(std::string(S), "-02'000");
+ S.clear();
+ APInt(64, -1000000, isSigned).toString(S, 10, isSigned, true, false, true);
+ EXPECT_EQ(std::string(S), "-1'000'000");
+ S.clear();
+ APInt(64, -1000000, isSigned).toString(S, 16, isSigned, true, true, true);
+ EXPECT_EQ(std::string(S), "-0xF'4240");
+ S.clear();
+ APInt(64, -1'000'000'000, isSigned)
+ .toString(S, 36, isSigned, false, false, true);
+ EXPECT_EQ(std::string(S), "-gj'dgxs");
+ S.clear();
}
TEST(APIntTest, Log2) {
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