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CodeGen: Emit a libcall if the target doesn't support 16-byte wide atomics

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There are targets that support i128 sized scalars but cannot emit
instructions that modify them directly.  The proper thing to do is to
emit a libcall.

This fixes PR17481.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192957 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer
2013-10-18 08:03:43 +00:00
parent 7a7fc90ba3
commit 641bea117d
4 changed files with 32 additions and 0 deletions
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8
lib/CodeGen/TargetLoweringBase.cpp
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@ -318,34 +318,42 @@ static void InitLibcallNames(const char **Names, const TargetMachine &TM) {
Names[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = "__sync_val_compare_and_swap_2";
Names[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = "__sync_val_compare_and_swap_4";
Names[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = "__sync_val_compare_and_swap_8";
Names[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = "__sync_val_compare_and_swap_16";
Names[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = "__sync_lock_test_and_set_1";
Names[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = "__sync_lock_test_and_set_2";
Names[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = "__sync_lock_test_and_set_4";
Names[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = "__sync_lock_test_and_set_8";
Names[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = "__sync_lock_test_and_set_16";
Names[RTLIB::SYNC_FETCH_AND_ADD_1] = "__sync_fetch_and_add_1";
Names[RTLIB::SYNC_FETCH_AND_ADD_2] = "__sync_fetch_and_add_2";
Names[RTLIB::SYNC_FETCH_AND_ADD_4] = "__sync_fetch_and_add_4";
Names[RTLIB::SYNC_FETCH_AND_ADD_8] = "__sync_fetch_and_add_8";
Names[RTLIB::SYNC_FETCH_AND_ADD_16] = "__sync_fetch_and_add_16";
Names[RTLIB::SYNC_FETCH_AND_SUB_1] = "__sync_fetch_and_sub_1";
Names[RTLIB::SYNC_FETCH_AND_SUB_2] = "__sync_fetch_and_sub_2";
Names[RTLIB::SYNC_FETCH_AND_SUB_4] = "__sync_fetch_and_sub_4";
Names[RTLIB::SYNC_FETCH_AND_SUB_8] = "__sync_fetch_and_sub_8";
Names[RTLIB::SYNC_FETCH_AND_SUB_16] = "__sync_fetch_and_sub_16";
Names[RTLIB::SYNC_FETCH_AND_AND_1] = "__sync_fetch_and_and_1";
Names[RTLIB::SYNC_FETCH_AND_AND_2] = "__sync_fetch_and_and_2";
Names[RTLIB::SYNC_FETCH_AND_AND_4] = "__sync_fetch_and_and_4";
Names[RTLIB::SYNC_FETCH_AND_AND_8] = "__sync_fetch_and_and_8";
Names[RTLIB::SYNC_FETCH_AND_AND_16] = "__sync_fetch_and_and_16";
Names[RTLIB::SYNC_FETCH_AND_OR_1] = "__sync_fetch_and_or_1";
Names[RTLIB::SYNC_FETCH_AND_OR_2] = "__sync_fetch_and_or_2";
Names[RTLIB::SYNC_FETCH_AND_OR_4] = "__sync_fetch_and_or_4";
Names[RTLIB::SYNC_FETCH_AND_OR_8] = "__sync_fetch_and_or_8";
Names[RTLIB::SYNC_FETCH_AND_OR_16] = "__sync_fetch_and_or_16";
Names[RTLIB::SYNC_FETCH_AND_XOR_1] = "__sync_fetch_and_xor_1";
Names[RTLIB::SYNC_FETCH_AND_XOR_2] = "__sync_fetch_and_xor_2";
Names[RTLIB::SYNC_FETCH_AND_XOR_4] = "__sync_fetch_and_xor_4";
Names[RTLIB::SYNC_FETCH_AND_XOR_8] = "__sync_fetch_and_xor_8";
Names[RTLIB::SYNC_FETCH_AND_XOR_16] = "__sync_fetch_and_xor_16";
Names[RTLIB::SYNC_FETCH_AND_NAND_1] = "__sync_fetch_and_nand_1";
Names[RTLIB::SYNC_FETCH_AND_NAND_2] = "__sync_fetch_and_nand_2";
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";
if (Triple(TM.getTargetTriple()).getEnvironment() == Triple::GNU) {
Names[RTLIB::SINCOS_F32] = "sincosf";