[InstCombine] Add cttz/ctlz + select non-bitwidth tests; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349322 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/InstCombine/select-cmp-cttz-ctlz.ll b/test/Transforms/InstCombine/select-cmp-cttz-ctlz.ll
index acc2976..6ccc615 100644
--- a/test/Transforms/InstCombine/select-cmp-cttz-ctlz.ll
+++ b/test/Transforms/InstCombine/select-cmp-cttz-ctlz.ll
@@ -343,6 +343,62 @@
ret i128 %cond
}
+define i32 @test_ctlz_not_bw(i32 %x) {
+; CHECK-LABEL: @test_ctlz_not_bw(
+; CHECK-NEXT: [[CT:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[X:%.*]], i1 false), !range !1
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], 0
+; CHECK-NEXT: [[RES:%.*]] = select i1 [[CMP]], i32 123, i32 [[CT]]
+; CHECK-NEXT: ret i32 [[RES]]
+;
+ %ct = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
+ %cmp = icmp ne i32 %x, 0
+ %res = select i1 %cmp, i32 %ct, i32 123
+ ret i32 %res
+}
+
+define i32 @test_ctlz_not_bw_multiuse(i32 %x) {
+; CHECK-LABEL: @test_ctlz_not_bw_multiuse(
+; CHECK-NEXT: [[CT:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[X:%.*]], i1 false), !range !1
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], 0
+; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 123, i32 [[CT]]
+; CHECK-NEXT: [[RES:%.*]] = or i32 [[SEL]], [[CT]]
+; CHECK-NEXT: ret i32 [[RES]]
+;
+ %ct = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
+ %cmp = icmp ne i32 %x, 0
+ %sel = select i1 %cmp, i32 %ct, i32 123
+ %res = or i32 %sel, %ct
+ ret i32 %res
+}
+
+define i32 @test_cttz_not_bw(i32 %x) {
+; CHECK-LABEL: @test_cttz_not_bw(
+; CHECK-NEXT: [[CT:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[X:%.*]], i1 false), !range !1
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], 0
+; CHECK-NEXT: [[RES:%.*]] = select i1 [[CMP]], i32 123, i32 [[CT]]
+; CHECK-NEXT: ret i32 [[RES]]
+;
+ %ct = tail call i32 @llvm.cttz.i32(i32 %x, i1 false)
+ %cmp = icmp ne i32 %x, 0
+ %res = select i1 %cmp, i32 %ct, i32 123
+ ret i32 %res
+}
+
+define i32 @test_cttz_not_bw_multiuse(i32 %x) {
+; CHECK-LABEL: @test_cttz_not_bw_multiuse(
+; CHECK-NEXT: [[CT:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[X:%.*]], i1 false), !range !1
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], 0
+; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 123, i32 [[CT]]
+; CHECK-NEXT: [[RES:%.*]] = or i32 [[SEL]], [[CT]]
+; CHECK-NEXT: ret i32 [[RES]]
+;
+ %ct = tail call i32 @llvm.cttz.i32(i32 %x, i1 false)
+ %cmp = icmp ne i32 %x, 0
+ %sel = select i1 %cmp, i32 %ct, i32 123
+ %res = or i32 %sel, %ct
+ ret i32 %res
+}
+
declare i16 @llvm.ctlz.i16(i16, i1)
declare i32 @llvm.ctlz.i32(i32, i1)
declare i64 @llvm.ctlz.i64(i64, i1)