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| author | Zhou Sheng <zhousheng00@gmail.com> | 2007-03-12 17:47:45 +0000 |
|---|---|---|
| committer | Zhou Sheng <zhousheng00@gmail.com> | 2007-03-12 17:47:45 +0000 |
| commit | 7d820f57e27fc00fafe58cd257ac62e38d68fee5 (patch) | |
| tree | 12611ebc35715181b600b98ec9a12ff6b88136b5 /lib/Support | |
| parent | 8cb6834ccfe46279df5f70a9796ba72d8f037bbb (diff) | |
| download | llvm-7d820f57e27fc00fafe58cd257ac62e38d68fee5.tar.gz llvm-7d820f57e27fc00fafe58cd257ac62e38d68fee5.tar.bz2 llvm-7d820f57e27fc00fafe58cd257ac62e38d68fee5.tar.xz | |
For APInt::z/sext(width), if width == BitWidth, just return *this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35065 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
| -rw-r--r-- | lib/Support/APInt.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 08ec236200..ae8f6e4e39 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -921,6 +921,8 @@ APInt &APInt::trunc(uint32_t width) { // Sign extend to a new width. APInt &APInt::sext(uint32_t width) { + if (width == BitWidth) + return *this; assert(width > BitWidth && "Invalid APInt SignExtend request"); assert(width <= IntegerType::MAX_INT_BITS && "Too many bits"); // If the sign bit isn't set, this is the same as zext. @@ -969,6 +971,8 @@ APInt &APInt::sext(uint32_t width) { // Zero extend to a new width. APInt &APInt::zext(uint32_t width) { + if (width == BitWidth) + return *this; assert(width > BitWidth && "Invalid APInt ZeroExtend request"); assert(width <= IntegerType::MAX_INT_BITS && "Too many bits"); uint32_t wordsBefore = getNumWords(); |