[AArch64] Improve the test of conditional branch fusion

Separate the checking of the fused pairings with B.cc and CBcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309825 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/AArch64/misched-fusion.ll b/test/CodeGen/AArch64/misched-fusion.ll
index ee6007e393c9274894a6417a8f97b6623a452059..59c3583e3d1e901228de2d4f9e6de66aab6e7bf5 100644 (file)
--- a/test/CodeGen/AArch64/misched-fusion.ll
+++ b/test/CodeGen/AArch64/misched-fusion.ll
@@ -1,14 +1,34 @@
-; RUN: llc -o - %s -mattr=+arith-cbz-fusion | FileCheck %s
-; RUN: llc -o - %s -mcpu=cyclone | FileCheck %s
+; RUN: llc -o - %s -mattr=+arith-bcc-fusion | FileCheck --check-prefix=FUSEBCC %s
+; RUN: llc -o - %s -mattr=+arith-cbz-fusion | FileCheck --check-prefix=FUSECBZ %s
+; RUN: llc -o - %s -mcpu=cyclone            | FileCheck --check-prefix=FUSEBCC --check-prefix=FUSECBZ %s
 
 target triple = "aarch64-unknown"
 
 declare void @foobar(i32 %v0, i32 %v1)
 
+; Make sure cmp is scheduled in front of bcc
+; FUSEBCC-LABEL: test_cmp_bcc:
+; FUSEBCC: cmp {{w[0-9]+}}, #13
+; FUSEBCC-NEXT: b.ne {{.?LBB[0-9_]+}}
+define void @test_cmp_bcc(i32 %a0, i32 %a1) {
+entry:
+  %cond = icmp eq i32 %a0, 13
+  %v1 = add i32 %a1, 7
+  br i1 %cond, label %if, label %exit
+
+if:
+  call void @foobar(i32 %v1, i32 %a0)
+  br label %exit
+
+exit:
+  call void @foobar(i32 %a0, i32 %v1)
+  ret void
+}
+
 ; Make sure sub is scheduled in front of cbnz
-; CHECK-LABEL: test_sub_cbz:
-; CHECK: subs w[[SUBRES:[0-9]+]], w0, #13
-; CHECK: b.ne {{.?LBB[0-9_]+}}
+; FUSECBZ-LABEL: test_sub_cbz:
+; FUSECBZ: subs [[SUBRES:w[0-9]+]], w0, #13
+; FUSECBZ: b.ne {{.?LBB[0-9_]+}}
 define void @test_sub_cbz(i32 %a0, i32 %a1) {
 entry:
   ; except for the fusion opportunity the sub/add should be equal so the