add check lines for min/max tests.

llvm-svn: 91816

1 files changed, 16 insertions, 0 deletions

diff --git a/llvm/test/Transforms/InstCombine/select.ll b/llvm/test/Transforms/InstCombine/select.ll
index 2dcc3b19f97..06d5338884e 100644
--- a/llvm/test/Transforms/InstCombine/select.ll
+++ b/llvm/test/Transforms/InstCombine/select.ll
@@ -383,42 +383,58 @@ next:
 }
 
 
+; SMAX(SMAX(x, y), x) -> SMAX(x, y)
 define i32 @test30(i32 %x, i32 %y) {
   %cmp = icmp sgt i32 %x, %y
   %cond = select i1 %cmp, i32 %x, i32 %y
+  
   %cmp5 = icmp sgt i32 %cond, %x
   %retval = select i1 %cmp5, i32 %cond, i32 %x
   ret i32 %retval
+; CHECK: @test30
+; CHECK: ret i32 %cond
 }
 
+; UMAX(UMAX(x, y), x) -> UMAX(x, y)
 define i32 @test31(i32 %x, i32 %y) {
   %cmp = icmp ugt i32 %x, %y 
   %cond = select i1 %cmp, i32 %x, i32 %y
   %cmp5 = icmp ugt i32 %cond, %x
   %retval = select i1 %cmp5, i32 %cond, i32 %x
   ret i32 %retval
+; CHECK: @test31
+; CHECK: ret i32 %cond
 }
 
+; SMIN(SMIN(x, y), x) -> SMIN(x, y)
 define i32 @test32(i32 %x, i32 %y) {
   %cmp = icmp sgt i32 %x, %y
   %cond = select i1 %cmp, i32 %y, i32 %x
   %cmp5 = icmp sgt i32 %cond, %x
   %retval = select i1 %cmp5, i32 %x, i32 %cond
   ret i32 %retval
+; CHECK: @test32
+; CHECK: ret i32 %cond
 }
 
+; MAX(MIN(x, y), x) -> x
 define i32 @test33(i32 %x, i32 %y) {
   %cmp = icmp sgt i32 %x, %y
   %cond = select i1 %cmp, i32 %y, i32 %x
   %cmp5 = icmp sgt i32 %cond, %x
   %retval = select i1 %cmp5, i32 %cond, i32 %x
   ret i32 %retval
+; CHECK: @test33
+; CHECK: ret i32 %x
 }
 
+; MIN(MAX(x, y), x) -> x
 define i32 @test34(i32 %x, i32 %y) {
   %cmp = icmp sgt i32 %x, %y
   %cond = select i1 %cmp, i32 %x, i32 %y
   %cmp5 = icmp sgt i32 %cond, %x
   %retval = select i1 %cmp5, i32 %x, i32 %cond
   ret i32 %retval
+; CHECK: @test34
+; CHECK: ret i32 %x
 }