rename test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90292 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 116 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/sext.ll b/test/Transforms/InstCombine/sext.ll
new file mode 100644
index 0000000000..1acf468c42
--- /dev/null
+++ b/test/Transforms/InstCombine/sext.ll
@@ -0,0 +1,116 @@
+; RUN: opt < %s -instcombine -S | FileCheck %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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
+
+declare i32 @llvm.ctpop.i32(i32)
+declare i32 @llvm.ctlz.i32(i32)
+declare i32 @llvm.cttz.i32(i32)
+
+define i64 @test1(i32 %x) {
+  %t = call i32 @llvm.ctpop.i32(i32 %x)
+  %s = sext i32 %t to i64
+  ret i64 %s
+  
+; CHECK: @test1
+; CHECK: zext i32 %t
+}
+
+define i64 @test2(i32 %x) {
+  %t = call i32 @llvm.ctlz.i32(i32 %x)
+  %s = sext i32 %t to i64
+  ret i64 %s
+
+; CHECK: @test2
+; CHECK: zext i32 %t
+}
+
+define i64 @test3(i32 %x) {
+  %t = call i32 @llvm.cttz.i32(i32 %x)
+  %s = sext i32 %t to i64
+  ret i64 %s
+
+; CHECK: @test3
+; CHECK: zext i32 %t
+}
+
+define i64 @test4(i32 %x) {
+  %t = udiv i32 %x, 3
+  %s = sext i32 %t to i64
+  ret i64 %s
+
+; CHECK: @test4
+; CHECK: zext i32 %t
+}
+
+define i64 @test5(i32 %x) {
+  %t = urem i32 %x, 30000
+  %s = sext i32 %t to i64
+  ret i64 %s
+; CHECK: @test5
+; CHECK: zext i32 %t
+}
+
+define i64 @test6(i32 %x) {
+  %u = lshr i32 %x, 3
+  %t = mul i32 %u, 3
+  %s = sext i32 %t to i64
+  ret i64 %s
+; CHECK: @test6
+; CHECK: zext i32 %t
+}
+
+define i64 @test7(i32 %x) {
+  %t = and i32 %x, 511
+  %u = sub i32 20000, %t
+  %s = sext i32 %u to i64
+  ret i64 %s
+; CHECK: @test7
+; CHECK: zext i32 %u to i64
+}
+
+define i32 @test8(i8 %a, i32 %f, i1 %p, i32* %z) {
+  %d = lshr i32 %f, 24
+  %e = select i1 %p, i32 %d, i32 0
+  %s = trunc i32 %e to i16
+  %n = sext i16 %s to i32
+  ret i32 %n
+; CHECK: @test8
+; CHECK: %d = lshr i32 %f, 24
+; CHECK: %n = select i1 %p, i32 %d, i32 0
+; CHECK: ret i32 %n
+}
+
+; rdar://6013816
+define i16 @test9(i16 %t, i1 %cond) nounwind {
+entry:
+	br i1 %cond, label %T, label %F
+T:
+	%t2 = sext i16 %t to i32
+	br label %F
+
+F:
+	%V = phi i32 [%t2, %T], [42, %entry]
+	%W = trunc i32 %V to i16
+	ret i16 %W
+; CHECK: @test9
+; CHECK: T:
+; CHECK-NEXT: br label %F
+; CHECK: F:
+; CHECK-NEXT: phi i16
+; CHECK-NEXT: ret i16
+}
+
+; PR2638
+define i32 @test10(i32 %i) nounwind  {
+entry:
+        %tmp12 = trunc i32 %i to i8
+        %tmp16 = shl i8 %tmp12, 6
+        %a = ashr i8 %tmp16, 6 
+        %b = sext i8 %a to i32 
+        ret i32 %b
+; CHECK: @test10
+; CHECK:  shl i32 %i, 30
+; CHECK-NEXT: ashr i32
+; CHECK-NEXT: ret i32
+}
+