hg: valhalla/valhalla: 8229799: [lworld][c1] incorrect handling of return value from SubstitutabilityCheckStub

[ioi.lam at oracle.com]

Changeset: a32457198d3e
Author:    iklam
Date:      2019-08-16 13:15 -0700
URL:       https://hg.openjdk.java.net/valhalla/valhalla/rev/a32457198d3e

8229799: [lworld][c1] incorrect handling of return value from SubstitutabilityCheckStub

! src/hotspot/cpu/x86/c1_CodeStubs_x86.cpp
! src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp
! src/hotspot/share/c1/c1_CodeStubs.hpp
! src/hotspot/share/c1/c1_LIRGenerator.cpp
+ test/hotspot/jtreg/compiler/valhalla/valuetypes/TestC1.java