Add reg clobber list for direct calls

Represent empty use/def list as a null pointer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5101 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.def b/lib/Target/X86/X86InstrInfo.def
index d90e89c31d65fa95c1652a77a59d8cb0482ae8f2..7cf1125e5ca80e74f887874038f16a2d59c0e69b 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.def
+++ b/lib/Target/X86/X86InstrInfo.def
@@ -24,7 +24,7 @@
 
 // Implicit register usage info: O_ is for one register, T_ is for two registers
 // NoIR means the instruction does not use implicit registers, in this form.
-IMPREGSLIST(NoIR , 0)
+#define NoIR 0
 IMPREGSLIST(O_AL , X86::AL , 0)
 IMPREGSLIST(O_AH , X86::AH , 0)
 IMPREGSLIST(O_CL , X86::CL , 0)
@@ -65,7 +65,7 @@ I(JNE         , "jne",   0x85, M_BRANCH_FLAG, X86II::RawFrm | X86II::TB | X86II:
                                                                                        NoIR) // jne foo
 I(JE          , "je",    0x84, M_BRANCH_FLAG, X86II::RawFrm | X86II::TB | X86II::Void, NoIR,
                                                                                        NoIR) // je foo
-I(CALLpcrel32 , "call",  0xE8, M_BRANCH_FLAG, X86II::Void, NoIR, NoIR)                       // call pc+42
+I(CALLpcrel32 , "call",  0xE8, M_BRANCH_FLAG, X86II::Void, NoIR, C_CLOBBER)                  // call pc+42
 I(CALLr32     , "call",  0xFF, M_BRANCH_FLAG, X86II::Void | X86II::MRMS2r | X86II::Arg32,
                                               NoIR, C_CLOBBER)                               // call [r32]
 I(CALLm32     , "call",  0xFF, M_BRANCH_FLAG, X86II::Void | X86II::MRMS2m | X86II::Arg32,
@@ -198,3 +198,5 @@ I(MOVZXr32r16 , "movzx", 0xB7,             0, X86II::MRMSrcReg | X86II::TB, NoIR
 
 // At this point, I is dead, so undefine the macro
 #undef I
+#undef NoIR
+