From 469bb59e0b42ae20e227113679bf5ae75e90d3f9 Mon Sep 17 00:00:00 2001
From: David Bolvansky <david.bolvansky@gmail.com>
Date: Tue, 2 Jul 2019 21:16:34 +0000
Subject: [PATCH] [NFC] Strenghten isInteger condition for rL364940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364969 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Utils/SimplifyLibCalls.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 79b1b862e65..54961f375d8 100644
--- a/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -1543,8 +1543,9 @@ Value *LibCallSimplifier::optimizePow(CallInst *Pow, IRBuilder<> &B) {
 
     APSInt IntExpo(32, /*isUnsigned=*/false);
     // powf(x, C) -> powi(x, C) iff C is a constant signed integer value
-    if (ExpoF->convertToInteger(IntExpo, APFloat::rmTowardZero, &Ignored) ==
-        APFloat::opOK) {
+    if (ExpoF->isInteger() &&
+        ExpoF->convertToInteger(IntExpo, APFloat::rmTowardZero, &Ignored) ==
+            APFloat::opOK) {
       return createPowWithIntegerExponent(
           Base, ConstantInt::get(B.getInt32Ty(), IntExpo), M, B);
     }
-- 
2.50.1