1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/2010-02-12-saveCR.ll b/test/CodeGen/PowerPC/2010-02-12-saveCR.ll
new file mode 100644
index 0000000..b73382e
--- /dev/null
+++ b/test/CodeGen/PowerPC/2010-02-12-saveCR.ll
@@ -0,0 +1,30 @@
+; RUN: llc < %s -mtriple=powerpc-apple-darwin | FileCheck %s
+; ModuleID = 'hh.c'
+target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128-n32"
+target triple = "powerpc-apple-darwin9.6"
+; This formerly used R0 for both the stack address and CR.
+
+define void @foo() nounwind {
+entry:
+;CHECK:  mfcr r2
+;CHECK:  rlwinm r2, r2, 8, 0, 31
+;CHECK:  lis r0, 1
+;CHECK:  ori r0, r0, 34540
+;CHECK:  stwx r2, r1, r0
+  %x = alloca [100000 x i8]                       ; <[100000 x i8]*> [#uses=1]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  %x1 = bitcast [100000 x i8]* %x to i8*          ; <i8*> [#uses=1]
+  call void @bar(i8* %x1) nounwind
+  call void asm sideeffect "", "~{cr2}"() nounwind
+  br label %return
+
+return:                                           ; preds = %entry
+;CHECK:  lis r0, 1
+;CHECK:  ori r0, r0, 34540
+;CHECK:  lwzx r2, r1, r0
+;CHECK:  rlwinm r2, r2, 24, 0, 31
+;CHECK:  mtcrf 32, r2
+  ret void
+}
+
+declare void @bar(i8*)