[llvm] [IR] Remove unsafe-fp-math attribute support (PR #164534)

[via llvm-commits]

https://github.com/paperchalice created https://github.com/llvm/llvm-project/pull/164534

None

>From 6c6bd47fecabdd14aed124445cbeb8aef048905c Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Wed, 22 Oct 2025 10:18:11 +0800
Subject: [PATCH] [IR] Remove unsafe-fp-math attribute support

---
 llvm/include/llvm/IR/Attributes.td | 2 --
 1 file changed, 2 deletions(-)

diff --git a/llvm/include/llvm/IR/Attributes.td b/llvm/include/llvm/IR/Attributes.td
index 8e7d9dcebfe2a..8ce2b1bea8fac 100644
--- a/llvm/include/llvm/IR/Attributes.td
+++ b/llvm/include/llvm/IR/Attributes.td
@@ -410,7 +410,6 @@ def LessPreciseFPMAD : StrBoolAttr<"less-precise-fpmad">;
 def NoInfsFPMath : StrBoolAttr<"no-infs-fp-math">;
 def NoNansFPMath : StrBoolAttr<"no-nans-fp-math">;
 def NoSignedZerosFPMath : StrBoolAttr<"no-signed-zeros-fp-math">;
-def UnsafeFPMath : StrBoolAttr<"unsafe-fp-math">;
 def NoJumpTables : StrBoolAttr<"no-jump-tables">;
 def NoInlineLineTables : StrBoolAttr<"no-inline-line-tables">;
 def ProfileSampleAccurate : StrBoolAttr<"profile-sample-accurate">;
@@ -474,7 +473,6 @@ def : MergeRule<"setAND<LessPreciseFPMADAttr>">;
 def : MergeRule<"setAND<NoInfsFPMathAttr>">;
 def : MergeRule<"setAND<NoNansFPMathAttr>">;
 def : MergeRule<"setAND<NoSignedZerosFPMathAttr>">;
-def : MergeRule<"setAND<UnsafeFPMathAttr>">;
 def : MergeRule<"setOR<NoImplicitFloatAttr>">;
 def : MergeRule<"setOR<NoJumpTablesAttr>">;
 def : MergeRule<"setOR<ProfileSampleAccurateAttr>">;