[AArch64] allow and-not-compare transform to form 'bics'
This target hook was added with D19087:
https://reviews.llvm.org/D19087
Differential Revision: https://reviews.llvm.org/D27221
llvm-svn: 288206
diff --git a/llvm/test/CodeGen/AArch64/bics.ll b/llvm/test/CodeGen/AArch64/bics.ll
index 1c0c079..53aa28a 100644
--- a/llvm/test/CodeGen/AArch64/bics.ll
+++ b/llvm/test/CodeGen/AArch64/bics.ll
@@ -13,13 +13,10 @@
ret i1 %cmp
}
-; FIXME: Recognize a disguised bics.
-
define i1 @and_cmp(i32 %x, i32 %y) {
; CHECK-LABEL: and_cmp:
; CHECK: // BB#0:
-; CHECK-NEXT: and w8, w0, w1
-; CHECK-NEXT: cmp w8, w1
+; CHECK-NEXT: bics wzr, w1, w0
; CHECK-NEXT: cset w0, eq
; CHECK-NEXT: ret
;
@@ -32,8 +29,7 @@
; CHECK-LABEL: and_cmp_const:
; CHECK: // BB#0:
; CHECK-NEXT: mov w8, #43
-; CHECK-NEXT: and w8, w0, w8
-; CHECK-NEXT: cmp w8, #43
+; CHECK-NEXT: bics wzr, w8, w0
; CHECK-NEXT: cset w0, eq
; CHECK-NEXT: ret
;