From: Cameron McInally <cameron.mcinally@nyu.edu>
Date: Thu, 27 Jun 2019 21:23:07 +0000 (+0000)
Subject: [NFC][GVNSink] Pre-commit unary FNeg test to fpmath.ll
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2585af80b5c6de44b0edd9280f4be032b7b3126c;p=llvm

[NFC][GVNSink] Pre-commit unary FNeg test to fpmath.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364597 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/GVNSink/fpmath.ll b/test/Transforms/GVNSink/fpmath.ll
new file mode 100644
index 00000000000..15d86845e0d
--- /dev/null
+++ b/test/Transforms/GVNSink/fpmath.ll
@@ -0,0 +1,23 @@
+; RUN: opt -S < %s -gvn-sink | FileCheck %s
+
+; CHECK-LABEL: sink
+; CHECK: fneg
+; CHECK: = phi
+define float @sink(float %a, float %b, i1 %cmp) {
+entry:
+  br i1 %cmp, label %if.then, label %if.else
+
+if.then:
+  %sub = fsub float %a, %b
+  %neg0 = fneg float %sub
+  br label %if.end
+
+if.else:
+  %add = fadd float %a, %b
+  %neg1 = fneg float %add
+  br label %if.end
+
+if.end:
+  %phi = phi float [ %neg0, %if.then ], [ %neg1, %if.else ]
+  ret float %phi
+}