X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FX86%2FX86TargetMachine.cpp;fp=lib%2FTarget%2FX86%2FX86TargetMachine.cpp;h=d318244e0f70710ac78b5e32b9eaad3adf36fd19;hb=39b3d70179e9ee0d8770aa08bc2400b5fdcc9aa1;hp=2e869eb7c3cd6eaf34b0d2b68d8cbae06f5ecab0;hpb=d741fc02b0fdabe236b978db24ae31c033392edf;p=oota-llvm.git

diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 2e869eb7c3c..d318244e0f7 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -110,13 +110,6 @@ X86TargetMachine::X86TargetMachine(const Target &T, const Triple &TT,
                         OL),
       TLOF(createTLOF(getTargetTriple())),
       Subtarget(TT, CPU, FS, *this, Options.StackAlignmentOverride) {
-  // Windows stack unwinder gets confused when execution flow "falls through"
-  // after a call to 'noreturn' function.
-  // To prevent that, we emit a trap for 'unreachable' IR instructions.
-  // (which on X86, happens to be the 'ud2' instruction)
-  if (Subtarget.isTargetWin64())
-    this->Options.TrapUnreachable = true;
-
   // By default (and when -ffast-math is on), enable estimate codegen for
   // everything except scalar division. By default, use 1 refinement step for
   // all operations. Defaults may be overridden by using command-line options.