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authorSanjay Patel <spatel@rotateright.com>2016-11-29 22:28:58 +0000
committerSanjay Patel <spatel@rotateright.com>2016-11-29 22:28:58 +0000
commit47f7f30df9eced812c16f07acd5979ab2a14cd7c (patch)
treefdfbaa8b26fa5edc0fac10903d395a039f85b27a /llvm/test/CodeGen
parent3f0627c5e486d1759950f3b86e1a7a0a22e3b9eb (diff)
downloadbcm5719-llvm-47f7f30df9eced812c16f07acd5979ab2a14cd7c.tar.gz
bcm5719-llvm-47f7f30df9eced812c16f07acd5979ab2a14cd7c.zip
[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
Diffstat (limited to 'llvm/test/CodeGen')
-rw-r--r--llvm/test/CodeGen/AArch64/bics.ll8
1 files changed, 2 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/AArch64/bics.ll b/llvm/test/CodeGen/AArch64/bics.ll
index 1c0c0793d36..53aa28ad913 100644
--- a/llvm/test/CodeGen/AArch64/bics.ll
+++ b/llvm/test/CodeGen/AArch64/bics.ll
@@ -13,13 +13,10 @@ define i1 @andn_cmp(i32 %x, i32 %y) {
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 @@ define i1 @and_cmp_const(i32 %x) {
; 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
;
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