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ac: completely remove +auto-waitcnt-before-barrier

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it causes corruption on several different GPU generations.

Cc: 18.2 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Marek Olšák 2018-08-15 21:14:47 -04:00
parent 2383ddace1
commit a4a104fc81
3 changed files with 2 additions and 7 deletions
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7
src/amd/common/ac_llvm_util.c
View file

@ -149,16 +149,13 @@ static LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family,
char features[256];
const char *triple = (tm_options & AC_TM_SUPPORTS_SPILL) ? "amdgcn-mesa-mesa3d" : "amdgcn--";
LLVMTargetRef target = ac_get_llvm_target(triple);
bool barrier_does_waitcnt = (tm_options & AC_TM_AUTO_WAITCNT_BEFORE_BARRIER) &&
family != CHIP_VEGA20;
snprintf(features, sizeof(features),
"+DumpCode,+vgpr-spilling,-fp32-denormals,+fp64-denormals%s%s%s%s%s",
"+DumpCode,+vgpr-spilling,-fp32-denormals,+fp64-denormals%s%s%s%s",
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" : "",
barrier_does_waitcnt ? ",+auto-waitcnt-before-barrier" : "");
tm_options & AC_TM_PROMOTE_ALLOCA_TO_SCRATCH ? ",-promote-alloca" : "");
LLVMTargetMachineRef tm = LLVMCreateTargetMachine(
target,

1
src/amd/common/ac_llvm_util.h
View file

@ -65,7 +65,6 @@ 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_AUTO_WAITCNT_BEFORE_BARRIER = (1 << 8),
};
enum ac_float_mode {

1
src/gallium/drivers/radeonsi/si_pipe.c
View file

@ -115,7 +115,6 @@ static void si_init_compiler(struct si_screen *sscreen,
sscreen->info.chip_class <= VI;
enum ac_target_machine_options tm_options =
AC_TM_AUTO_WAITCNT_BEFORE_BARRIER |
(sscreen->debug_flags & DBG(SI_SCHED) ? AC_TM_SISCHED : 0) |
(sscreen->debug_flags & DBG(GISEL) ? AC_TM_ENABLE_GLOBAL_ISEL : 0) |
(sscreen->info.chip_class >= GFX9 ? AC_TM_FORCE_ENABLE_XNACK : 0) |