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| author | Jakub Staszak <jstaszak@apple.com> | 2011-07-06 18:22:43 +0000 |
|---|---|---|
| committer | Jakub Staszak <jstaszak@apple.com> | 2011-07-06 18:22:43 +0000 |
| commit | 9da9934e27dfb48de77b80a3e20ed2d869b52024 (patch) | |
| tree | 711368e52d6596eeb3273012758fe07e87213687 /lib/CodeGen/IntrinsicLowering.cpp | |
| parent | d7c7e2ff7d3305e4bc5634902ec4b8406e9cefca (diff) | |
| download | llvm-9da9934e27dfb48de77b80a3e20ed2d869b52024.tar.gz llvm-9da9934e27dfb48de77b80a3e20ed2d869b52024.tar.bz2 llvm-9da9934e27dfb48de77b80a3e20ed2d869b52024.tar.xz | |
Introduce "expect" intrinsic instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134516 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/IntrinsicLowering.cpp')
| -rw-r--r-- | lib/CodeGen/IntrinsicLowering.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/CodeGen/IntrinsicLowering.cpp b/lib/CodeGen/IntrinsicLowering.cpp index 3861ddadf6..b0a823042d 100644 --- a/lib/CodeGen/IntrinsicLowering.cpp +++ b/lib/CodeGen/IntrinsicLowering.cpp @@ -353,6 +353,13 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) { report_fatal_error("Code generator does not support intrinsic function '"+ Callee->getName()+"'!"); + case Intrinsic::expect: { + // Just replace __builtin_expect(exp, c) with EXP. + Value *V = CI->getArgOperand(0); + CI->replaceAllUsesWith(V); + break; + } + // The setjmp/longjmp intrinsics should only exist in the code if it was // never optimized (ie, right out of the CFE), or if it has been hacked on // by the lowerinvoke pass. In both cases, the right thing to do is to |