Rebased PNaCl localmods in LLVM to 223109

test/Transforms/InstCombine/overflow-mul.ll

 ; RUN: opt -S -instcombine < %s | FileCheck %s
 
+; @LOCALMOD-BEGIN
+; PNaCl does not support the with.overflow intrinsics in its stable
+; ABI, so these optimizations are disabled.
+
+; RUN: opt -S -instcombine -mtriple=le32-nacl < %s | FileCheck %s -check-prefix=PNACL
+; PNACL-NOT: with.overflow
+; @LOCALMOD-END
+
 ; return mul(zext x, zext y) > MAX
 define i32 @pr4917_1(i32 %x, i32 %y) nounwind {
 ; CHECK-LABEL: @pr4917_1(
 entry:
   %l = zext i32 %x to i64
   %r = zext i32 %y to i64
 ; CHECK-NOT: zext i32
   %mul64 = mul i64 %l, %r
 ; CHECK: [[MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %x, i32 %y)
   %overflow = icmp ugt i64 %mul64, 4294967295
@@ skipping 166 matching lines @@
 ; CHECK-LABEL: @pr21445(
 ; CHECK-NEXT:  %[[umul:.*]] = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 %a, i8 ptrtoint (i32* @pr21445_data to i8))
 ; CHECK-NEXT:  %[[cmp:.*]] = extractvalue { i8, i1 } %[[umul]], 1
 ; CHECK-NEXT:  ret i1 %[[cmp]]
   %ext = zext i8 %a to i32
   %mul = mul i32 %ext, zext (i8 ptrtoint (i32* @pr21445_data to i8) to i32)
   %and = and i32 %mul, 255
   %cmp = icmp ne i32 %mul, %and
   ret i1 %cmp
 }