diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineRegisterInfo.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineRegisterInfo.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineRegisterInfo.h b/include/llvm/CodeGen/MachineRegisterInfo.h index 01dc018..f2e5e10 100644 --- a/include/llvm/CodeGen/MachineRegisterInfo.h +++ b/include/llvm/CodeGen/MachineRegisterInfo.h @@ -115,6 +115,10 @@ public: /// register. bool use_empty(unsigned RegNo) const { return use_begin(RegNo) == use_end(); } + /// hasOneUse - Return true if there is exactly one instruction using the + /// specified register. + bool hasOneUse(unsigned RegNo) const; + /// use_nodbg_iterator/use_nodbg_begin/use_nodbg_end - Walk all uses of the /// specified register, skipping those marked as Debug. typedef defusechain_iterator<true,false,true> use_nodbg_iterator; @@ -129,6 +133,10 @@ public: return use_nodbg_begin(RegNo) == use_nodbg_end(); } + /// hasOneNonDBGUse - Return true if there is exactly one non-Debug + /// instruction using the specified register. + bool hasOneNonDBGUse(unsigned RegNo) const; + /// replaceRegWith - Replace all instances of FromReg with ToReg in the /// machine function. This is like llvm-level X->replaceAllUsesWith(Y), /// except that it also changes any definitions of the register as well. |