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| author | Tom Roeder <tmroeder@google.com> | 2014-06-05 19:29:43 +0000 |
|---|---|---|
| committer | Tom Roeder <tmroeder@google.com> | 2014-06-05 19:29:43 +0000 |
| commit | 44cb65fff1fa26a2a1ff90290f172756f082c8a1 (patch) | |
| tree | bf434728cf43339c7a59346772330571289765b8 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | f7e289c0f25c920368b28d0d9d3be64d882f32cb (diff) | |
| download | llvm-44cb65fff1fa26a2a1ff90290f172756f082c8a1.zip llvm-44cb65fff1fa26a2a1ff90290f172756f082c8a1.tar.gz llvm-44cb65fff1fa26a2a1ff90290f172756f082c8a1.tar.bz2 | |
Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute.
It includes a pass that rewrites all indirect calls to jumptable functions to pass through these tables.
This also adds backend support for generating the jump-instruction tables on ARM and X86.
Note that since the jumptable attribute creates a second function pointer for a
function, any function marked with jumptable must also be marked with unnamed_addr.
llvm-svn: 210280
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp index 7b018a6..41d1f06 100644 --- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp @@ -549,6 +549,8 @@ static Attribute::AttrKind GetAttrFromCode(uint64_t Code) { return Attribute::InlineHint; case bitc::ATTR_KIND_IN_REG: return Attribute::InReg; + case bitc::ATTR_KIND_JUMP_TABLE: + return Attribute::JumpTable; case bitc::ATTR_KIND_MIN_SIZE: return Attribute::MinSize; case bitc::ATTR_KIND_NAKED: |