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| author | Eli Friedman <eli.friedman@gmail.com> | 2009-09-01 04:19:44 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-09-01 04:19:44 +0000 |
| commit | d6139895f43d161a972d134ffda4229d2f548eb6 (patch) | |
| tree | c10eb3622ee80ba156dfa7203372ca77ae636c6c | |
| parent | c4bf26fbdff42967d660f505a83f75a4df2cc752 (diff) | |
PR4836, part 2: CodeGen for __builtin_isnan.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80655 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/CGBuiltin.cpp | 5 | ||||
| -rw-r--r-- | test/CodeGen/builtins.c | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp index 9ba5f71f3c..bfb6be8b79 100644 --- a/lib/CodeGen/CGBuiltin.cpp +++ b/lib/CodeGen/CGBuiltin.cpp @@ -271,6 +271,11 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD, return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()), "tmp")); } + case Builtin::BI__builtin_isnan: { + Value *V = EmitScalarExpr(E->getArg(0)); + V = Builder.CreateFCmpUNO(V, V, "cmp"); + return RValue::get(Builder.CreateZExt(V, ConvertType(E->getType()), "tmp")); + } case Builtin::BIalloca: case Builtin::BI__builtin_alloca: { // FIXME: LLVM IR Should allow alloca with an i64 size! diff --git a/test/CodeGen/builtins.c b/test/CodeGen/builtins.c index ce5cd74bd4..165db9c267 100644 --- a/test/CodeGen/builtins.c +++ b/test/CodeGen/builtins.c @@ -54,6 +54,8 @@ int main() { P(islessgreater, (1., 2.)); P(isunordered, (1., 2.)); + P(isnan, (1.)); + // Bitwise & Numeric Functions P(abs, (N)); |