[InstCombine] Add a test for r290733
llvm-svn: 290929
diff --git a/llvm/test/Transforms/InstCombine/sink-zext.ll b/llvm/test/Transforms/InstCombine/sink-zext.ll
new file mode 100644
index 0000000..7764ca7
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/sink-zext.ll
@@ -0,0 +1,71 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+declare i32 @callee()
+
+define i64 @test1(i32 %V) {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[ADDCONV:%.*]] = add nuw nsw i32 [[CALL1]], [[CALL2]]
+; CHECK-NEXT: [[ADD:%.*]] = zext i32 [[ADD:%.*]]conv to i64
+; CHECK-NEXT: ret i64 [[ADD]]
+;
+ %call1 = call i32 @callee(), !range !0
+ %call2 = call i32 @callee(), !range !0
+ %zext1 = sext i32 %call1 to i64
+ %zext2 = sext i32 %call2 to i64
+ %add = add i64 %zext1, %zext2
+ ret i64 %add
+}
+
+define i64 @test2(i32 %V) {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[CALL1]], [[CALL2]]
+; CHECK-NEXT: [[ZEXT1:%.*]] = zext i32 [[ADD]] to i64
+; CHECK-NEXT: ret i64 [[ZEXT1]]
+;
+ %call1 = call i32 @callee(), !range !0
+ %call2 = call i32 @callee(), !range !0
+ %add = add i32 %call1, %call2
+ %zext = sext i32 %add to i64
+ ret i64 %zext
+}
+
+define i64 @test3(i32 %V) {
+; CHECK-LABEL: @test3(
+; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[MULCONV:%.*]] = mul nuw nsw i32 [[CALL1]], [[CALL2]]
+; CHECK-NEXT: [[ADD:%.*]] = zext i32 [[MULCONV]] to i64
+; CHECK-NEXT: ret i64 [[ADD]]
+;
+ %call1 = call i32 @callee(), !range !0
+ %call2 = call i32 @callee(), !range !0
+ %zext1 = sext i32 %call1 to i64
+ %zext2 = sext i32 %call2 to i64
+ %add = mul i64 %zext1, %zext2
+ ret i64 %add
+}
+
+define i64 @test4(i32 %V) {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee(), !range !0
+; CHECK-NEXT: [[ADD:%.*]] = mul nuw nsw i32 [[CALL1]], [[CALL2]]
+; CHECK-NEXT: [[ZEXT1:%.*]] = zext i32 [[ADD]] to i64
+; CHECK-NEXT: ret i64 [[ZEXT1]]
+;
+ %call1 = call i32 @callee(), !range !0
+ %call2 = call i32 @callee(), !range !0
+ %add = mul i32 %call1, %call2
+ %zext = sext i32 %add to i64
+ ret i64 %zext
+}
+
+!0 = !{ i32 0, i32 2000 }