Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 79 insertions, 0 deletions

diff --git a/test/CodeGen/PowerPC/ctrloops.ll b/test/CodeGen/PowerPC/ctrloops.ll
new file mode 100644
index 0000000..4b6f7b9
--- /dev/null
+++ b/test/CodeGen/PowerPC/ctrloops.ll
@@ -0,0 +1,79 @@
+target 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"
+target triple = "powerpc64-unknown-freebsd10.0"
+; RUN: llc < %s -march=ppc64 | FileCheck %s
+
+@a = common global i32 0, align 4
+
+define void @test1(i32 %c) nounwind {
+entry:
+  br label %for.body
+
+for.body:                                         ; preds = %for.body, %entry
+  %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
+  %0 = load volatile i32* @a, align 4, !tbaa !0
+  %add = add nsw i32 %0, %c
+  store volatile i32 %add, i32* @a, align 4, !tbaa !0
+  %inc = add nsw i32 %i.01, 1
+  %exitcond = icmp eq i32 %inc, 2048
+  br i1 %exitcond, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body
+  ret void
+; CHECK: @test1
+; CHECK-NOT: or 3, 3, 3
+; CHECK: mtctr
+; CHECK-NOT: addi
+; CHECK-NOT: cmplwi
+; CHECK: bdnz
+}
+
+define void @test2(i32 %c, i32 %d) nounwind {
+entry:
+  %cmp1 = icmp sgt i32 %d, 0
+  br i1 %cmp1, label %for.body, label %for.end
+
+for.body:                                         ; preds = %entry, %for.body
+  %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
+  %0 = load volatile i32* @a, align 4, !tbaa !0
+  %add = add nsw i32 %0, %c
+  store volatile i32 %add, i32* @a, align 4, !tbaa !0
+  %inc = add nsw i32 %i.02, 1
+  %exitcond = icmp eq i32 %inc, %d
+  br i1 %exitcond, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+; CHECK: @test2
+; CHECK: mtctr
+; CHECK-NOT: addi
+; CHECK-NOT: cmplwi
+; CHECK: bdnz
+}
+
+define void @test3(i32 %c, i32 %d) nounwind {
+entry:
+  %cmp1 = icmp sgt i32 %d, 0
+  br i1 %cmp1, label %for.body, label %for.end
+
+for.body:                                         ; preds = %entry, %for.body
+  %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
+  %mul = mul nsw i32 %i.02, %c
+  %0 = load volatile i32* @a, align 4, !tbaa !0
+  %add = add nsw i32 %0, %mul
+  store volatile i32 %add, i32* @a, align 4, !tbaa !0
+  %inc = add nsw i32 %i.02, 1
+  %exitcond = icmp eq i32 %inc, %d
+  br i1 %exitcond, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+; CHECK: @test3
+; CHECK: mtctr
+; CHECK-NOT: addi
+; CHECK-NOT: cmplwi
+; CHECK: bdnz
+}
+
+!0 = metadata !{metadata !"int", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA"}