From: Marek Olšák <[email protected]>
This removes useless s_waitcnt before barriers.
Only radeonsi uses this function.
---
src/amd/common/ac_llvm_util.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/amd/common/ac_llvm_util.c b/src/amd/common/ac_llvm_util.c
index be2d92b4c08..99cc677edce 100644
--- a/src/amd/common/ac_llvm_util.c
+++ b/src/amd/common/ac_llvm_util.c
@@ -126,27 +126,29 @@ const char *ac_get_llvm_processor_name(enum radeon_family
family)
}
LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family,
enum ac_target_machine_options
tm_options,
const char **out_triple)
{
assert(family >= CHIP_TAHITI);
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 = true; /* TODO: not for Vega20 */
snprintf(features, sizeof(features),
-
"+DumpCode,+vgpr-spilling,-fp32-denormals,+fp64-denormals%s%s%s%s",
+
"+DumpCode,+vgpr-spilling,-fp32-denormals,+fp64-denormals%s%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" : "");
+ tm_options & AC_TM_PROMOTE_ALLOCA_TO_SCRATCH ?
",-promote-alloca" : "",
+ barrier_does_waitcnt ? ",+auto-waitcnt-before-barrier" : "");
LLVMTargetMachineRef tm = LLVMCreateTargetMachine(
target,
triple,
ac_get_llvm_processor_name(family),
features,
LLVMCodeGenLevelDefault,
LLVMRelocDefault,
LLVMCodeModelDefault);
--
2.17.1
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