[FastISel][AArch64] Optimize compare-and-branch for i1 to use 'tbz'.

[oota-llvm.git] / test / CodeGen / AArch64 / fast-isel-cbz.ll

diff --git a/test/CodeGen/AArch64/fast-isel-cbz.ll b/test/CodeGen/AArch64/fast-isel-cbz.ll
index 4cd4b539401eb2b33b68c2177c872e3f7ab142c0..6e31a045d28552e75721359db9d034fa2fa3449c 100644 (file)
--- a/test/CodeGen/AArch64/fast-isel-cbz.ll
+++ b/test/CodeGen/AArch64/fast-isel-cbz.ll
@@ -2,8 +2,7 @@
 
 define i32 @icmp_eq_i1(i1 %a) {
 ; CHECK-LABEL: icmp_eq_i1
-; CHECK:       and [[REG:w[0-9]+]], w0, #0x1
-; CHECK:       cbz [[REG]], {{LBB.+_2}}
+; CHECK:       tbz w0, #0, {{LBB.+_2}}
   %1 = icmp eq i1 %a, 0
   br i1 %1, label %bb1, label %bb2
 bb2:
@@ -58,3 +57,14 @@ bb1:
   ret i32 0
 }
 
+define i32 @icmp_eq_ptr(i8* %a) {
+; CHECK-LABEL: icmp_eq_ptr
+; CHECK:       cbz x0, {{LBB.+_2}}
+  %1 = icmp eq i8* %a, null
+  br i1 %1, label %bb1, label %bb2
+bb2:
+  ret i32 1
+bb1:
+  ret i32 0
+}
+