LegalizeDAG: allow libcalls for max/min atomic operations
ARM processors without ldrex/strex need to be able to make libcalls for all
atomic operations, including the newer min/max versions.
The alternative would probably be expanding these operations in terms of
cmpxchg (as x86 does always), but in the configurations where this matters
code-size tends to be paramount so the libcall is more desirable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193398 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index bfed53e..63743b6 100644
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -354,6 +354,26 @@
Names[RTLIB::SYNC_FETCH_AND_NAND_4] = "__sync_fetch_and_nand_4";
Names[RTLIB::SYNC_FETCH_AND_NAND_8] = "__sync_fetch_and_nand_8";
Names[RTLIB::SYNC_FETCH_AND_NAND_16] = "__sync_fetch_and_nand_16";
+ Names[RTLIB::SYNC_FETCH_AND_MAX_1] = "__sync_fetch_and_max_1";
+ Names[RTLIB::SYNC_FETCH_AND_MAX_2] = "__sync_fetch_and_max_2";
+ Names[RTLIB::SYNC_FETCH_AND_MAX_4] = "__sync_fetch_and_max_4";
+ Names[RTLIB::SYNC_FETCH_AND_MAX_8] = "__sync_fetch_and_max_8";
+ Names[RTLIB::SYNC_FETCH_AND_MAX_16] = "__sync_fetch_and_max_16";
+ Names[RTLIB::SYNC_FETCH_AND_UMAX_1] = "__sync_fetch_and_umax_1";
+ Names[RTLIB::SYNC_FETCH_AND_UMAX_2] = "__sync_fetch_and_umax_2";
+ Names[RTLIB::SYNC_FETCH_AND_UMAX_4] = "__sync_fetch_and_umax_4";
+ Names[RTLIB::SYNC_FETCH_AND_UMAX_8] = "__sync_fetch_and_umax_8";
+ Names[RTLIB::SYNC_FETCH_AND_UMAX_16] = "__sync_fetch_and_umax_16";
+ Names[RTLIB::SYNC_FETCH_AND_MIN_1] = "__sync_fetch_and_min_1";
+ Names[RTLIB::SYNC_FETCH_AND_MIN_2] = "__sync_fetch_and_min_2";
+ Names[RTLIB::SYNC_FETCH_AND_MIN_4] = "__sync_fetch_and_min_4";
+ Names[RTLIB::SYNC_FETCH_AND_MIN_8] = "__sync_fetch_and_min_8";
+ Names[RTLIB::SYNC_FETCH_AND_MIN_16] = "__sync_fetch_and_min_16";
+ Names[RTLIB::SYNC_FETCH_AND_UMIN_1] = "__sync_fetch_and_umin_1";
+ Names[RTLIB::SYNC_FETCH_AND_UMIN_2] = "__sync_fetch_and_umin_2";
+ Names[RTLIB::SYNC_FETCH_AND_UMIN_4] = "__sync_fetch_and_umin_4";
+ Names[RTLIB::SYNC_FETCH_AND_UMIN_8] = "__sync_fetch_and_umin_8";
+ Names[RTLIB::SYNC_FETCH_AND_UMIN_16] = "__sync_fetch_and_umin_16";
if (Triple(TM.getTargetTriple()).getEnvironment() == Triple::GNU) {
Names[RTLIB::SINCOS_F32] = "sincosf";