On 15 March 2017 at 07:17, Dave Airlie <airl...@gmail.com> wrote: > From: Dave Airlie <airl...@redhat.com> > > LLVM 4.0 released with a pretty messy regression, that hopefully > get fixed in the future. > > This work around was proposed by Tom, and it fixes the CTS regressions > here at least, I'm not sure if this will cause any major side effects, > but correctness over speed and all that. > > radeonsi should possibly consider the same workaround until an llvm > fix can be found. >
I also deliberately only put this for LLVM 4.0 in the hope llvm will get fixed before 5 releases. Dave. > Signed-off-by: Dave Airlie <airl...@redhat.com> > --- > src/amd/common/ac_llvm_util.c | 13 ++++++++++++- > 1 file changed, 12 insertions(+), 1 deletion(-) > > diff --git a/src/amd/common/ac_llvm_util.c b/src/amd/common/ac_llvm_util.c > index a2fe631..da12aaa 100644 > --- a/src/amd/common/ac_llvm_util.c > +++ b/src/amd/common/ac_llvm_util.c > @@ -26,7 +26,7 @@ > #include "ac_llvm_util.h" > #include "util/bitscan.h" > #include <llvm-c/Core.h> > - > +#include <llvm-c/Support.h> > #include "c11/threads.h" > > #include <assert.h> > @@ -39,6 +39,17 @@ static void ac_init_llvm_target() > LLVMInitializeAMDGPUTarget(); > LLVMInitializeAMDGPUTargetMC(); > LLVMInitializeAMDGPUAsmPrinter(); > + > + /* > + * Workaround for bug in llvm 4.0 that causes image intrinsics > + * to disappear. > + * https://reviews.llvm.org/D26348 > + */ > +#if HAVE_LLVM == 0x0400 > + const char *argv[2] = {"mesa", "-simplifycfg-sink-common=false"}; > + LLVMParseCommandLineOptions(2, argv, NULL); > +#endif > + > } > > static once_flag ac_init_llvm_target_once_flag = ONCE_FLAG_INIT; > -- > 2.9.3 > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
