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

[Pierre van Houtryve via llvm-commits]

https://github.com/Pierre-vh updated https://github.com/llvm/llvm-project/pull/95237

>From c4dcd7d915f6d7b34f7fe9d8b8fc3bcdf16701ca Mon Sep 17 00:00:00 2001
From: pvanhout <pierre.vanhoutryve at amd.com>
Date: Wed, 12 Jun 2024 14:28:44 +0200
Subject: [PATCH 1/2] [NFC][AMDGPU] Do not flush after printing every
 instruction

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/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp
index 883b6c4407fe5..227b7383e16d5 100644
--- 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);
 }

>From b0106f4f8dd8466d84bf1845474c52ff13d9b1ef Mon Sep 17 00:00:00 2001
From: pvanhout <pierre.vanhoutryve at amd.com>
Date: Wed, 12 Jun 2024 14:56:56 +0200
Subject: [PATCH 2/2] also do R600

---
 llvm/lib/Target/AMDGPU/MCTargetDesc/R600InstPrinter.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/R600InstPrinter.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/R600InstPrinter.cpp
index 22d0594e2b86a..56a23e26b8d9f 100644
--- 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);
 }