1 files changed, 30 insertions, 11 deletions
diff --git a/test/Transforms/InstCombine/nsw.ll b/test/Transforms/InstCombine/nsw.ll
index 821cebe..681bdc2 100644
--- a/test/Transforms/InstCombine/nsw.ll
+++ b/test/Transforms/InstCombine/nsw.ll
@@ -1,20 +1,39 @@
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
-; CHECK: define i32 @foo
-; %y = sub i32 0, %x
-; %z = sdiv i32 %y, 337
-; ret i32 %y
-define i32 @foo(i32 %x) {
+; CHECK: @sub1
+; CHECK: %y = sub i32 0, %x
+; CHECK: %z = sdiv i32 %y, 337
+; CHECK: ret i32 %z
+define i32 @sub1(i32 %x) {
   %y = sub i32 0, %x
   %z = sdiv i32 %y, 337
-  ret i32 %y
+  ret i32 %z
 }
 
-; CHECK: define i32 @bar
-; %y = sdiv i32 %x, -337
-; ret i32 %y
-define i32 @bar(i32 %x) {
+; CHECK: @sub2
+; CHECK: %z = sdiv i32 %x, -337
+; CHECK: ret i32 %z
+define i32 @sub2(i32 %x) {
   %y = sub nsw i32 0, %x
   %z = sdiv i32 %y, 337
-  ret i32 %y
+  ret i32 %z
+}
+
+; CHECK: @shl_icmp
+; CHECK: %B = icmp eq i64 %X, 0
+; CHECK: ret i1 %B
+define i1 @shl_icmp(i64 %X) nounwind {
+  %A = shl nuw i64 %X, 2   ; X/4
+  %B = icmp eq i64 %A, 0
+  ret i1 %B
+}
+
+; CHECK: @shl1
+; CHECK: %B = shl nuw nsw i64 %A, 8
+; CHECK: ret i64 %B
+define i64 @shl1(i64 %X, i64* %P) nounwind {
+  %A = and i64 %X, 312
+  store i64 %A, i64* %P  ; multiple uses of A.
+  %B = shl i64 %A, 8
+  ret i64 %B
 }