diff options
| -rw-r--r-- | lib/Target/PowerPC/PPCCTRLoops.cpp | 3 | ||||
| -rw-r--r-- | test/CodeGen/PowerPC/ctrloop-cpsgn.ll | 28 |
2 files changed, 30 insertions, 1 deletions
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: diff --git a/test/CodeGen/PowerPC/ctrloop-cpsgn.ll b/test/CodeGen/PowerPC/ctrloop-cpsgn.ll new file mode 100644 index 0000000000..2f0440912c --- /dev/null +++ b/test/CodeGen/PowerPC/ctrloop-cpsgn.ll @@ -0,0 +1,28 @@ +; RUN: llc < %s -mcpu=ppc | FileCheck %s + +target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32" +target triple = "powerpc-unknown-linux-gnu" + +define ppc_fp128 @foo(ppc_fp128* nocapture %n, ppc_fp128 %d) nounwind readonly { +entry: + br label %for.body + +for.body: ; preds = %for.body, %entry + %i.06 = phi i32 [ 0, %entry ], [ %inc, %for.body ] + %x.05 = phi ppc_fp128 [ %d, %entry ], [ %conv, %for.body ] + %arrayidx = getelementptr inbounds ppc_fp128* %n, i32 %i.06 + %0 = load ppc_fp128* %arrayidx, align 8 + %conv = tail call ppc_fp128 @copysignl(ppc_fp128 %x.05, ppc_fp128 %d) nounwind readonly + %inc = add nsw i32 %i.06, 1 + %exitcond = icmp eq i32 %inc, 2048 + br i1 %exitcond, label %for.end, label %for.body + +for.end: ; preds = %for.body + ret ppc_fp128 %conv +} + +declare ppc_fp128 @copysignl(ppc_fp128, ppc_fp128) #0 + +; CHECK: @foo +; CHECK-NOT: mtctr + |