diff options
| author | Samuel Pitoiset <[email protected]> | 2019-05-07 16:09:46 +0200 |
|---|---|---|
| committer | Samuel Pitoiset <[email protected]> | 2019-05-17 11:41:19 +0200 |
| commit | d7501834cd86f9ec0b7c3dea17448dc523e36390 (patch) | |
| tree | 76cdc3d8537efddfdabbff5ed33ff9ccef1df384 /src/amd/common | |
| parent | 47afc5eed76f12ec38f94f0069c4695c9fe78889 (diff) | |
radv: add a workaround for Monster Hunter World and LLVM 7&8
The load/store optimizer pass doesn't handle WaW hazards correctly
and this is the root cause of the reflection issue with Monster
Hunter World. AFAIK, it's the only game that are affected by this
issue.
This is fixed with LLVM r361008, but we need a workaround for older
LLVM versions unfortunately.
Cc: "19.0" "19.1" <[email protected]>
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src/amd/common')
| -rw-r--r-- | src/amd/common/ac_llvm_util.c | 7 | ||||
| -rw-r--r-- | src/amd/common/ac_llvm_util.h | 1 |
2 files changed, 5 insertions, 3 deletions
diff --git a/src/amd/common/ac_llvm_util.c b/src/amd/common/ac_llvm_util.c index 69446863b95..6063411310b 100644 --- a/src/amd/common/ac_llvm_util.c +++ b/src/amd/common/ac_llvm_util.c @@ -151,13 +151,14 @@ static LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family, LLVMTargetRef target = ac_get_llvm_target(triple); snprintf(features, sizeof(features), - "+DumpCode,-fp32-denormals,+fp64-denormals%s%s%s%s%s", + "+DumpCode,-fp32-denormals,+fp64-denormals%s%s%s%s%s%s", HAVE_LLVM >= 0x0800 ? "" : ",+vgpr-spilling", tm_options & AC_TM_SISCHED ? ",+si-scheduler" : "", tm_options & AC_TM_FORCE_ENABLE_XNACK ? ",+xnack" : "", tm_options & AC_TM_FORCE_DISABLE_XNACK ? ",-xnack" : "", - tm_options & AC_TM_PROMOTE_ALLOCA_TO_SCRATCH ? ",-promote-alloca" : ""); - + tm_options & AC_TM_PROMOTE_ALLOCA_TO_SCRATCH ? ",-promote-alloca" : "", + tm_options & AC_TM_NO_LOAD_STORE_OPT ? ",-load-store-opt" : ""); + LLVMTargetMachineRef tm = LLVMCreateTargetMachine( target, triple, diff --git a/src/amd/common/ac_llvm_util.h b/src/amd/common/ac_llvm_util.h index 6d961c06f8a..ca00540da80 100644 --- a/src/amd/common/ac_llvm_util.h +++ b/src/amd/common/ac_llvm_util.h @@ -65,6 +65,7 @@ enum ac_target_machine_options { AC_TM_CHECK_IR = (1 << 5), AC_TM_ENABLE_GLOBAL_ISEL = (1 << 6), AC_TM_CREATE_LOW_OPT = (1 << 7), + AC_TM_NO_LOAD_STORE_OPT = (1 << 8), }; enum ac_float_mode { |