vendor/llvm/llvm-release_39-r276489

1 files changed, 44 insertions, 0 deletions

diff --git a/test/CodeGen/AArch64/lower-range-metadata-func-call.ll b/test/CodeGen/AArch64/lower-range-metadata-func-call.ll
new file mode 100644
index 000000000000..fd4b2f5ba305
--- /dev/null
+++ b/test/CodeGen/AArch64/lower-range-metadata-func-call.ll
@@ -0,0 +1,44 @@
+; RUN: llc -march=aarch64 -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s
+
+; and can be eliminated
+; CHECK-LABEL: {{^}}test_call_known_max_range:
+; CHECK: bl foo
+; CHECK-NOT: and
+; CHECK: ret
+define i32 @test_call_known_max_range() #0 {
+entry:
+  %id = tail call i32 @foo(), !range !0
+  %and = and i32 %id, 1023
+  ret i32 %and
+}
+
+; CHECK-LABEL: {{^}}test_call_known_trunc_1_bit_range:
+; CHECK: bl foo
+; CHECK: and w{{[0-9]+}}, w0, #0x1ff
+; CHECK: ret
+define i32 @test_call_known_trunc_1_bit_range() #0 {
+entry:
+  %id = tail call i32 @foo(), !range !0
+  %and = and i32 %id, 511
+  ret i32 %and
+}
+
+; CHECK-LABEL: {{^}}test_call_known_max_range_m1:
+; CHECK: bl foo
+; CHECK: and w{{[0-9]+}}, w0, #0xff
+; CHECK: ret
+define i32 @test_call_known_max_range_m1() #0 {
+entry:
+  %id = tail call i32 @foo(), !range !1
+  %and = and i32 %id, 255
+  ret i32 %and
+}
+
+
+declare i32 @foo()
+
+attributes #0 = { norecurse nounwind }
+attributes #1 = { nounwind readnone }
+
+!0 = !{i32 0, i32 1024}
+!1 = !{i32 0, i32 1023}