diff options
| author | Mike Stump <mrs@apple.com> | 2010-01-04 23:01:10 +0000 |
|---|---|---|
| committer | Mike Stump <mrs@apple.com> | 2010-01-04 23:01:10 +0000 |
| commit | 1cd95e210b1b084ee275e0dfa9dd8a7e65b577d7 (patch) | |
| tree | 25296dfa04bfbd2d0cad239af86bf54ce4e1d9d8 | |
| parent | 3b11fd3b52e7b88233c602407c151d07cb093e75 (diff) | |
Avoid warnings for functions that return a value using MS-style inline
assembly code. This avoids changing the bahvior when normal asm("")
statements are used.
The type of code affected would be:
void* t4(void) { __asm mov eax, fs:[0x10] }
I hope people like this version, if not, let me know.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92531 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Sema/SemaDecl.cpp | 8 | ||||
| -rw-r--r-- | test/Sema/ms-fuzzy-asm.c | 1 |
2 files changed, 8 insertions, 1 deletions
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp index 30f9040000..a15c5fea21 100644 --- a/lib/Sema/SemaDecl.cpp +++ b/lib/Sema/SemaDecl.cpp @@ -1345,6 +1345,14 @@ Sema::ControlFlowKind Sema::CheckFallThrough(Stmt *Root) { HasFakeEdge = true; continue; } + if (const AsmStmt *AS = dyn_cast<AsmStmt>(S)) { + if (AS->isMSAsm()) { + HasFakeEdge = true; + HasLiveReturn = true; + continue; + } + } + bool NoReturnEdge = false; if (CallExpr *C = dyn_cast<CallExpr>(S)) { Expr *CEE = C->getCallee()->IgnoreParenCasts(); diff --git a/test/Sema/ms-fuzzy-asm.c b/test/Sema/ms-fuzzy-asm.c index 9ace656934..250e322256 100644 --- a/test/Sema/ms-fuzzy-asm.c +++ b/test/Sema/ms-fuzzy-asm.c @@ -1,5 +1,4 @@ // RUN: %clang_cc1 %s -verify -fms-extensions -// XFAIL: * #define M __asm int 0x2c #define M2 int |