[llvm] [llvm-exegesis] Switch from intptr_t to uintptr_t in most cases (PR #102860)

[Clement Courbet via llvm-commits]

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@@ -478,7 +478,7 @@ class SubProcessFunctionExecutorImpl
       RseqStructSize = 32;
 
     long RseqDisableOutput =
-        syscall(SYS_rseq, (intptr_t)__builtin_thread_pointer() + __rseq_offset,
+        syscall(SYS_rseq, (uintptr_t)__builtin_thread_pointer() + __rseq_offset,
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legrosbuffle wrote:

`reinterpret_cast` for consistency ?

https://github.com/llvm/llvm-project/pull/102860