Debug Info Testing: use null instead of an empty string in context field.

[oota-llvm.git] / test / CodeGen / PowerPC / negctr.ll

diff --git a/test/CodeGen/PowerPC/negctr.ll b/test/CodeGen/PowerPC/negctr.ll
index 9b438a138fcb177b0bcfc05c37761cd59eed9902..2e649930da6112fc5eac63b9de755e518d7f3bcf 100644 (file)
--- a/test/CodeGen/PowerPC/negctr.ll
+++ b/test/CodeGen/PowerPC/negctr.ll
@@ -1,4 +1,5 @@
 ; RUN: llc < %s -mcpu=a2 | FileCheck %s
+; RUN: llc < %s -mcpu=a2 -disable-lsr | FileCheck -check-prefix=NOLSR %s
 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-f128:128:128-v128:128:128-n32:64"
 target triple = "powerpc64-unknown-linux-gnu"
 
@@ -13,9 +14,12 @@ for.body:                                         ; preds = %for.body, %entry
   %exitcond = icmp eq i32 %lftr.wideiv, 0
   br i1 %exitcond, label %for.end, label %for.body
 
-; FIXME: We currently can't form the 32-bit unsigned trip count necessary here!
 ; CHECK: @main
-; CHECK-NOT: bdnz
+; CHECK: li [[REG:[0-9]+]], 0
+; CHECK: oris [[REG2:[0-9]+]], [[REG]], 65535
+; CHECK: ori [[REG3:[0-9]+]], [[REG2]], 65535
+; CHECK: mtctr [[REG3]]
+; CHECK: bdnz
 
 for.end:                                          ; preds = %for.body, %entry
   ret void
@@ -60,4 +64,23 @@ for.end:                                          ; preds = %for.body, %entry
   ret void
 }
 
-attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
+define void @main3() #0 {
+entry:
+  br i1 undef, label %for.end, label %for.body
+
+for.body:                                         ; preds = %for.body, %entry
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 127984, %entry ]
+  %indvars.iv.next = add i64 %indvars.iv, -16
+  %exitcond = icmp eq i64 %indvars.iv.next, -16
+  br i1 %exitcond, label %for.end, label %for.body
+
+; NOLSR: @main3
+; NOLSR: li [[REG:[0-9]+]], 8000
+; NOLSR: mtctr [[REG]]
+; NOLSR: bdnz
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+}
+
+attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }