From 30cbccb029b01738202bd04341b1cbf68a7814c9 Mon Sep 17 00:00:00 2001 From: Hal Finkel Date: Mon, 19 Aug 2013 23:35:24 +0000 Subject: Don't form PPC CTR-based loops around a copysignl call copysign/copysignf never become function calls (because the SDAG expansion code does not lower to the corresponding function call, but rather directly implements the associated logic), but copysignl almost always is lowered into a call to the requested libm functon (and, thus, might clobber CTR). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188727 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCCTRLoops.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'lib/Target/PowerPC/PPCCTRLoops.cpp') diff --git a/lib/Target/PowerPC/PPCCTRLoops.cpp b/lib/Target/PowerPC/PPCCTRLoops.cpp index 05dad8a094..d9f132363b 100644 --- a/lib/Target/PowerPC/PPCCTRLoops.cpp +++ b/lib/Target/PowerPC/PPCCTRLoops.cpp @@ -284,8 +284,9 @@ bool PPCCTRLoops::mightUseCTR(const Triple &TT, BasicBlock *BB) { default: return true; case LibFunc::copysign: case LibFunc::copysignf: - case LibFunc::copysignl: continue; // ISD::FCOPYSIGN is never a library call. + case LibFunc::copysignl: + return true; case LibFunc::fabs: case LibFunc::fabsf: case LibFunc::fabsl: -- cgit v1.2.3