From 9a98a774463a019a212c40df74e548227e1c1b2d Mon Sep 17 00:00:00 2001 From: Nate Begeman Date: Sat, 9 Apr 2005 09:30:09 +0000 Subject: [PATCH] Add a testcase to make sure that we don't emit two fneg instructions back to back for certain fsel instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21176 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/PowerPC/fnegsel.ll | 8 ++++++++ 1 file changed, 8 insertions(+) create mode 100644 test/CodeGen/PowerPC/fnegsel.ll diff --git a/test/CodeGen/PowerPC/fnegsel.ll b/test/CodeGen/PowerPC/fnegsel.ll new file mode 100644 index 00000000000..9a27e81054d --- /dev/null +++ b/test/CodeGen/PowerPC/fnegsel.ll @@ -0,0 +1,8 @@ +; RUN: llvm-as < %s | llc -march=ppc32 -enable-ppc-pattern-isel | not grep fneg + +double %test_fneg_sel(double %A, double %B, double %C) { + %D = sub double -0.0, %A + %Cond = setgt double %D, -0.0 + %E = select bool %Cond, double %B, double %C + ret double %E +}