[Mips] Correctly define IntPtrType (#145158)

Mips was the only architecture having PtrDiffType = SignedInt and
IntPtrType = SignedLong

This fixes a problem on mipsel-windows-gnu triple, where uintptr_t was
wrongly defined as unsigned long instead of unsigned int, leading to
problems in compiler-rt.

compiler-rt/lib/interception/interception_type_test.cpp:24:17: error:
static assertion failed due to requirement
'__sanitizer::is_same<unsigned long, unsigned int>::value':
24 | COMPILER_CHECK((__sanitizer::is_same<__sanitizer::uptr,
::uintptr_t>::value));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

compiler-rt/lib/interception/../sanitizer_common/sanitizer_internal_defs.h:369:44:
note: expanded from macro 'COMPILER_CHECK'
      369 | #define COMPILER_CHECK(pred) static_assert(pred, "")
          |                                            ^~~~
compiler-rt/lib/interception/interception_type_test.cpp:25:17: error:
static assertion failed due to requirement '__sanitizer::is_same<long,
int>::value':
25 | COMPILER_CHECK((__sanitizer::is_same<__sanitizer::sptr,
::intptr_t>::value));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

compiler-rt/lib/interception/../sanitizer_common/sanitizer_internal_defs.h:369:44:
note: expanded from macro 'COMPILER_CHECK'
      369 | #define COMPILER_CHECK(pred) static_assert(pred, "")
          |                                            ^~~~
compiler-rt/lib/interception/interception_type_test.cpp:27:17: error:
static assertion failed due to requirement '__sanitizer::is_same<long,
int>::value':
27 | COMPILER_CHECK((__sanitizer::is_same<::PTRDIFF_T,
::ptrdiff_t>::value));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

compiler-rt/lib/interception/../sanitizer_common/sanitizer_internal_defs.h:369:44:
note: expanded from macro 'COMPILER_CHECK'
      369 | #define COMPILER_CHECK(pred) static_assert(pred, "")

1 files changed, 3 insertions, 3 deletions

diff --git a/clang/lib/Basic/Targets/Mips.h b/clang/lib/Basic/Targets/Mips.h
index 35501ed..e199df3 100644
--- a/clang/lib/Basic/Targets/Mips.h
+++ b/clang/lib/Basic/Targets/Mips.h
@@ -129,7 +129,7 @@ public:
     LongWidth = LongAlign = 32;
     MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 32;
     PointerWidth = PointerAlign = 32;
-    PtrDiffType = SignedInt;
+    PtrDiffType = IntPtrType = SignedInt;
     SizeType = UnsignedInt;
     SuitableAlign = 64;
   }
@@ -155,7 +155,7 @@ public:
     IntMaxType = Int64Type;
     LongWidth = LongAlign = 64;
     PointerWidth = PointerAlign = 64;
-    PtrDiffType = SignedLong;
+    PtrDiffType = IntPtrType = SignedLong;
     SizeType = UnsignedLong;
   }
 
@@ -165,7 +165,7 @@ public:
     IntMaxType = Int64Type;
     LongWidth = LongAlign = 32;
     PointerWidth = PointerAlign = 32;
-    PtrDiffType = SignedInt;
+    PtrDiffType = IntPtrType = SignedInt;
     SizeType = UnsignedInt;
   }