From b35d56c2fe39064a33d0e4e7faf5464b6d8a7352 Mon Sep 17 00:00:00 2001 From: Rafael Espindola Date: Wed, 15 Dec 2010 07:12:24 +0000 Subject: Generalize an assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121851 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Support/MathExtras.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/llvm/Support/MathExtras.h') diff --git a/include/llvm/Support/MathExtras.h b/include/llvm/Support/MathExtras.h index 6740786dec..d0b34771ae 100644 --- a/include/llvm/Support/MathExtras.h +++ b/include/llvm/Support/MathExtras.h @@ -76,6 +76,12 @@ inline bool isUIntN(unsigned N, uint64_t x) { return x == (x & (~0ULL >> (64 - N))); } +/// isIIntN - Checks if an signed integer fits into the given (dynamic) +/// bit width. +inline bool isIntN(unsigned N, int64_t x) { + return N >= 64 || (-(INT64_C(1)<<(N-1)) <= x && x < (INT64_C(1)<<(N-1))); +} + /// isMask_32 - This function returns true if the argument is a sequence of ones /// starting at the least significant bit with the remainder zero (32 bit /// version). Ex. isMask_32(0x0000FFFFU) == true. -- cgit v1.2.3-18-g5258