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| author | Nick Lewycky <nicholas@mxc.ca> | 2007-04-07 15:41:33 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2007-04-07 15:41:33 +0000 |
| commit | e32157c6098ee7536315e9793eed98d21bf71fd0 (patch) | |
| tree | 9845f84301447c9a35a9c84b73dbf01189fc2c43 /include/llvm/Support/ConstantRange.h | |
| parent | 8aaa40610cb327ff4568cf839a6b2d7c18aaa89b (diff) | |
| download | llvm-e32157c6098ee7536315e9793eed98d21bf71fd0.tar.gz llvm-e32157c6098ee7536315e9793eed98d21bf71fd0.tar.bz2 llvm-e32157c6098ee7536315e9793eed98d21bf71fd0.tar.xz | |
Add signExtend to ConstantRange, to complement zeroExtend and truncate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35733 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Support/ConstantRange.h')
| -rw-r--r-- | include/llvm/Support/ConstantRange.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/Support/ConstantRange.h b/include/llvm/Support/ConstantRange.h index 05859b4111..020fb095ec 100644 --- a/include/llvm/Support/ConstantRange.h +++ b/include/llvm/Support/ConstantRange.h @@ -157,6 +157,12 @@ class ConstantRange { /// zero extended to BitWidth. ConstantRange zeroExtend(uint32_t BitWidth) const; + /// signExtend - Return a new range in the specified integer type, which must + /// be strictly larger than the current type. The returned range will + /// correspond to the possible range of values if the source range had been + /// sign extended to BitWidth. + ConstantRange signExtend(uint32_t BitWidth) const; + /// truncate - Return a new range in the specified integer type, which must be /// strictly smaller than the current type. The returned range will /// correspond to the possible range of values if the source range had been |