addFunctionSimplificationPasses(MPM);
+ // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
+ // pass manager that we are specifically trying to avoid. To prevent this
+ // we must insert a no-op module pass to reset the pass manager.
+ MPM.add(createBarrierNoopPass());
+
+ if (!DisableUnitAtATime)
+ MPM.add(createReversePostOrderFunctionAttrsPass());
+
// If we are planning to perform ThinLTO later, let's not bloat the code with
// unrolling/vectorization/... now. We'll first run the inliner + CGSCC passes
// during ThinLTO and perform the rest of the optimizations afterward.
return;
}
- // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
- // pass manager that we are specifically trying to avoid. To prevent this
- // we must insert a no-op module pass to reset the pass manager.
- MPM.add(createBarrierNoopPass());
-
// Scheduling LoopVersioningLICM when inlining is over, because after that
// we may see more accurate aliasing. Reason to run this late is that too
// early versioning may prevent further inlining due to increase of code
MPM.add(createLICMPass()); // Hoist loop invariants
}
- if (!DisableUnitAtATime)
- MPM.add(createReversePostOrderFunctionAttrsPass());
-
if (!DisableUnitAtATime && OptLevel > 1 && !PrepareForLTO)
// Remove avail extern fns and globals definitions if we aren't
// compiling an object file for later LTO. For LTO we want to preserve
; Next we break out of the main Function passes inside the CGSCC pipeline with
; a barrier pass.
; CHECK-O2: A No-Op Barrier Pass
+; Inferring function attribute should be immediately after the CGSCC pipeline.
+; CHECK-O2-NEXT: CallGraph
+; CHECK-O2-NEXT: Deduce function attributes in RPO
; CHECK-O2-NOT: Manager
; Next is the late function pass pipeline.
; CHECK-O2: FunctionPass Manager