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-rw-r--r--test/Transforms/InstCombine/ctpop.ll39
1 files changed, 33 insertions, 6 deletions
diff --git a/test/Transforms/InstCombine/ctpop.ll b/test/Transforms/InstCombine/ctpop.ll
index d49a907ffce1d..e8e3603e4cb8a 100644
--- a/test/Transforms/InstCombine/ctpop.ll
+++ b/test/Transforms/InstCombine/ctpop.ll
@@ -3,6 +3,8 @@
declare i32 @llvm.ctpop.i32(i32)
declare i8 @llvm.ctpop.i8(i8)
+declare i1 @llvm.ctpop.i1(i1)
+declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
declare void @llvm.assume(i1)
define i1 @test1(i32 %arg) {
@@ -44,7 +46,7 @@ define i1 @test3(i32 %arg) {
; Negative test for when we know nothing
define i1 @test4(i8 %arg) {
; CHECK-LABEL: @test4(
-; CHECK-NEXT: [[CNT:%.*]] = call i8 @llvm.ctpop.i8(i8 [[ARG:%.*]])
+; CHECK-NEXT: [[CNT:%.*]] = call i8 @llvm.ctpop.i8(i8 [[ARG:%.*]]), !range ![[RANGE:[0-9]+]]
; CHECK-NEXT: [[RES:%.*]] = icmp eq i8 [[CNT]], 2
; CHECK-NEXT: ret i1 [[RES]]
;
@@ -55,16 +57,41 @@ define i1 @test4(i8 %arg) {
; Test when the number of possible known bits isn't one less than a power of 2
; and the compare value is greater but less than the next power of 2.
-; TODO: The icmp is unnecessary given the known bits of the input.
define i1 @test5(i32 %arg) {
; CHECK-LABEL: @test5(
-; CHECK-NEXT: [[AND:%.*]] = and i32 [[ARG:%.*]], 3
-; CHECK-NEXT: [[CNT:%.*]] = call i32 @llvm.ctpop.i32(i32 [[AND]])
-; CHECK-NEXT: [[RES:%.*]] = icmp eq i32 [[CNT]], 3
-; CHECK-NEXT: ret i1 [[RES]]
+; CHECK-NEXT: ret i1 false
;
%and = and i32 %arg, 3
%cnt = call i32 @llvm.ctpop.i32(i32 %and)
%res = icmp eq i32 %cnt, 3
ret i1 %res
}
+
+; Test when the number of possible known bits isn't one less than a power of 2
+; and the compare value is greater but less than the next power of 2.
+; TODO: The icmp is unnecessary given the known bits of the input, but range
+; metadata doesn't support vectors
+define <2 x i1> @test5vec(<2 x i32> %arg) {
+; CHECK-LABEL: @test5vec(
+; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[ARG:%.*]], <i32 3, i32 3>
+; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[AND]])
+; CHECK-NEXT: [[RES:%.*]] = icmp eq <2 x i32> [[CNT]], <i32 3, i32 3>
+; CHECK-NEXT: ret <2 x i1> [[RES]]
+;
+ %and = and <2 x i32> %arg, <i32 3, i32 3>
+ %cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %and)
+ %res = icmp eq <2 x i32> %cnt, <i32 3, i32 3>
+ ret <2 x i1> %res
+}
+
+; Make sure we don't add range metadata to i1 ctpop.
+define i1 @test6(i1 %arg) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT: [[CNT:%.*]] = call i1 @llvm.ctpop.i1(i1 [[ARG:%.*]])
+; CHECK-NEXT: ret i1 [[CNT]]
+;
+ %cnt = call i1 @llvm.ctpop.i1(i1 %arg)
+ ret i1 %cnt
+}
+
+; CHECK: ![[RANGE]] = !{i8 0, i8 9}