From 87b4aa8914833a22eba10e618f946fd22dda0cc8 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Mon, 14 Dec 2015 21:53:54 +0000 Subject: [WebAssembly] Add an assert to sanity-check dead flags. The WebAssemblyStoreResults pass runs before LiveVariables, so it doesn't expect to have to keep dead flags up to date; check this with an assert. llvm-svn: 255551 --- llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp') diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp index 650143a..4e08b2b 100644 --- a/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp +++ b/llvm/lib/Target/WebAssembly/WebAssemblyStoreResults.cpp @@ -113,6 +113,9 @@ bool WebAssemblyStoreResults::runOnMachineFunction(MachineFunction &MF) { DEBUG(dbgs() << "Setting operand " << O << " in " << *Where << " from " << MI << "\n"); O.setReg(ToReg); + // If the store's def was previously dead, it is no longer. But the + // dead flag shouldn't be set yet. + assert(!MI.getOperand(0).isDead() && "Dead flag set on store result"); } } } -- cgit v1.1