From 665720fc98fa8a521e4913f4bba673ec7d986881 Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov@redhat.com>
Date: Tue, 15 Oct 2024 09:59:18 +0200
Subject: [PATCH] check for 32-bit immediate instead

---
 llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 377b4aaebebc99..d68d69fe661415 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -1158,10 +1158,9 @@ class ARMOperand : public MCParsedAsmOperand {
   bool isFPImm() const {
     if (!isImm()) return false;
     const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
-    if (!CE) return false;
-    // TODO: Is implicitTrunc correct here?
-    int Val = ARM_AM::getFP32Imm(
-        APInt(32, CE->getValue(), /*isSigned=*/true, /*implicitTrunc=*/true));
+    if (!CE || !isUInt<32>(CE->getValue()))
+      return false;
+    int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
     return Val != -1;
   }