From 4621017da1655fcaeac9da882c3176b7183dca87 Mon Sep 17 00:00:00 2001
From: David Linus Briemann <david.briemann@sap.com>
Date: Tue, 3 Feb 2026 12:20:32 +0100
Subject: [PATCH] add missing format strings, enable IR matching for >= PPC9 in
 TestMinMaxIdentity.java

---
 src/hotspot/cpu/ppc/ppc.ad                                   | 4 ++++
 test/hotspot/jtreg/compiler/igvn/TestMinMaxIdentity.java     | 2 +-
 .../lib/ir_framework/test/ApplicableIRRulesPrinter.java      | 5 ++++-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/hotspot/cpu/ppc/ppc.ad b/src/hotspot/cpu/ppc/ppc.ad
index 361bb15981d..d4ebb89d9e2 100644
--- a/src/hotspot/cpu/ppc/ppc.ad
+++ b/src/hotspot/cpu/ppc/ppc.ad
@@ -12324,6 +12324,7 @@ instruct minF(regF dst, regF src1, regF src2) %{
   predicate(PowerArchitecturePPC64 >= 9);
   ins_cost(DEFAULT_COST);
 
+  format %{ "MinF $dst, $src1, $src2" %}
   size(4);
   ins_encode %{
     __ xsminjdp($dst$$FloatRegister->to_vsr(), $src1$$FloatRegister->to_vsr(), $src2$$FloatRegister->to_vsr());
@@ -12336,6 +12337,7 @@ instruct minD(regD dst, regD src1, regD src2) %{
   predicate(PowerArchitecturePPC64 >= 9);
   ins_cost(DEFAULT_COST);
 
+  format %{ "MinD $dst, $src1, $src2" %}
   size(4);
   ins_encode %{
     __ xsminjdp($dst$$FloatRegister->to_vsr(), $src1$$FloatRegister->to_vsr(), $src2$$FloatRegister->to_vsr());
@@ -12348,6 +12350,7 @@ instruct maxF(regF dst, regF src1, regF src2) %{
   predicate(PowerArchitecturePPC64 >= 9);
   ins_cost(DEFAULT_COST);
 
+  format %{ "MaxF $dst, $src1, $src2" %}
   size(4);
   ins_encode %{
     __ xsmaxjdp($dst$$FloatRegister->to_vsr(), $src1$$FloatRegister->to_vsr(), $src2$$FloatRegister->to_vsr());
@@ -12360,6 +12363,7 @@ instruct maxD(regD dst, regD src1, regD src2) %{
   predicate(PowerArchitecturePPC64 >= 9);
   ins_cost(DEFAULT_COST);
 
+  format %{ "MaxD $dst, $src1, $src2" %}
   size(4);
   ins_encode %{
     __ xsmaxjdp($dst$$FloatRegister->to_vsr(), $src1$$FloatRegister->to_vsr(), $src2$$FloatRegister->to_vsr());
diff --git a/test/hotspot/jtreg/compiler/igvn/TestMinMaxIdentity.java b/test/hotspot/jtreg/compiler/igvn/TestMinMaxIdentity.java
index 5b998caf65c..132ecea5970 100644
--- a/test/hotspot/jtreg/compiler/igvn/TestMinMaxIdentity.java
+++ b/test/hotspot/jtreg/compiler/igvn/TestMinMaxIdentity.java
@@ -127,7 +127,7 @@ public class TestMinMaxIdentity {
                     """
                     @IR(counts = {IRNode.#op, "= 1"},
                         phase = CompilePhase.BEFORE_MACRO_EXPANSION,
-                        applyIfCPUFeatureOr = {"avx", "true", "asimd", "true"})
+                        applyIfCPUFeatureOr = {"avx", "true", "asimd", "true", "darn", "true"})
                     @IR(counts = {IRNode.#op, "= 1"},
                         phase = CompilePhase.BEFORE_MACRO_EXPANSION,
                         applyIfPlatform = {"riscv64", "true"})
diff --git a/test/hotspot/jtreg/compiler/lib/ir_framework/test/ApplicableIRRulesPrinter.java b/test/hotspot/jtreg/compiler/lib/ir_framework/test/ApplicableIRRulesPrinter.java
index 4fa1f8f3fe5..e50c1fa7ce5 100644
--- a/test/hotspot/jtreg/compiler/lib/ir_framework/test/ApplicableIRRulesPrinter.java
+++ b/test/hotspot/jtreg/compiler/lib/ir_framework/test/ApplicableIRRulesPrinter.java
@@ -124,7 +124,10 @@ public class ApplicableIRRulesPrinter {
         "zfh",
         "zvbb",
         "zvfh",
-        "zvkn"
+        "zvkn",
+        // PPC64
+        "darn",
+        "brw"
     ));
 
     public ApplicableIRRulesPrinter() {