[NFC][AMDGPU] Do not flush after printing every instruction (#95237)

It's very expensive and doesn't achieve anything. I one test I did, it saves almost 10s on a 2m23s build, bringing it down to 2m15s using a downstream branch.
llvm · Jun 12, 2024 · ad9fe3b · ad9fe3b
1 parent 74f200b
commit ad9fe3b
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diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp
@@ -43,7 +43,6 @@ void AMDGPUInstPrinter::printRegName(raw_ostream &OS, MCRegister Reg) const {
 void AMDGPUInstPrinter::printInst(const MCInst *MI, uint64_t Address,
                                   StringRef Annot, const MCSubtargetInfo &STI,
                                   raw_ostream &OS) {
-  OS.flush();
   printInstruction(MI, Address, STI, OS);
   printAnnotation(OS, Annot);
 }

diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/R600InstPrinter.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/R600InstPrinter.cpp
@@ -21,7 +21,6 @@ using namespace llvm;
 void R600InstPrinter::printInst(const MCInst *MI, uint64_t Address,
                                 StringRef Annot, const MCSubtargetInfo &STI,
                                 raw_ostream &O) {
-  O.flush();
   printInstruction(MI, Address, O);
   printAnnotation(O, Annot);
 }