[llvm] Revert "[AMDGPU] Enable scheduler mfma rewrite stage by default" (PR #185604)

[Jan Patrick Lehr via llvm-commits]

https://github.com/jplehr updated https://github.com/llvm/llvm-project/pull/185604

>From 1f47dd49aab483291299da19bf628cdd642404a5 Mon Sep 17 00:00:00 2001
From: Jan Patrick Lehr <jp.lehr at gmail.com>
Date: Tue, 10 Mar 2026 10:31:28 +0100
Subject: [PATCH 1/2] Revert "[AMDGPU] Enable scheduler mfma rewrite stage by
 default (#180751)"

This reverts commit 3215645b8d81bbef7db1d16b88de7ed0288f2274.
---
 llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
index 77c322eb3178e..0e33dad3edcde 100644
--- a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
@@ -101,7 +101,7 @@ static cl::opt<bool> PrintMaxRPRegUsageAfterScheduler(
 
 static cl::opt<bool> DisableRewriteMFMAFormSchedStage(
     "amdgpu-disable-rewrite-mfma-form-sched-stage", cl::Hidden,
-    cl::desc("Disable rewrite mfma rewrite scheduling stage"), cl::init(false));
+    cl::desc("Disable rewrie mfma rewrite scheduling stage"), cl::init(true));
 
 const unsigned ScheduleMetrics::ScaleFactor = 100;
 

>From 7269eb757bc4dc0072e1a78abe567c4376b49e90 Mon Sep 17 00:00:00 2001
From: Jan Patrick Lehr <JanPatrick.Lehr at amd.com>
Date: Tue, 10 Mar 2026 12:57:23 +0100
Subject: [PATCH 2/2] Update llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp

Co-authored-by: Jay Foad <jay.foad at amd.com>
---
 llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
index 0e33dad3edcde..932b9e8f52b27 100644
--- a/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
@@ -101,7 +101,7 @@ static cl::opt<bool> PrintMaxRPRegUsageAfterScheduler(
 
 static cl::opt<bool> DisableRewriteMFMAFormSchedStage(
     "amdgpu-disable-rewrite-mfma-form-sched-stage", cl::Hidden,
-    cl::desc("Disable rewrie mfma rewrite scheduling stage"), cl::init(true));
+    cl::desc("Disable rewrite mfma rewrite scheduling stage"), cl::init(true));
 
 const unsigned ScheduleMetrics::ScaleFactor = 100;