1target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" 2target triple = "powerpc64-unknown-freebsd10.0" 3; RUN: llc < %s -march=ppc64 | FileCheck %s 4 5define void @test1(i32 %c) nounwind { 6entry: 7 br label %for.body 8 9for.body: ; preds = %for.body, %entry 10 %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 11 call void asm sideeffect "", "~{r5}"() nounwind 12 %inc = add nsw i32 %i.01, 1 13 %exitcond = icmp eq i32 %inc, 2048 14 br i1 %exitcond, label %for.end, label %for.body 15 16for.end: ; preds = %for.body 17 ret void 18; CHECK: @test1 19; CHECK: mtctr 20} 21 22define void @test2(i32 %c) nounwind { 23entry: 24 br label %for.body 25 26for.body: ; preds = %for.body, %entry 27 %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 28 call void asm sideeffect "", "~{ctr}"() nounwind 29 %inc = add nsw i32 %i.01, 1 30 %exitcond = icmp eq i32 %inc, 2048 31 br i1 %exitcond, label %for.end, label %for.body 32 33for.end: ; preds = %for.body 34 ret void 35; CHECK: @test2 36; CHECK-NOT: mtctr 37} 38 39