1 files changed, 68 insertions, 4 deletions
diff --git a/test/CodeGen/AArch64/arm64-ccmp.ll b/test/CodeGen/AArch64/arm64-ccmp.ll
index b18e638a3a94..6b497e8f7bfd 100644
--- a/test/CodeGen/AArch64/arm64-ccmp.ll
+++ b/test/CodeGen/AArch64/arm64-ccmp.ll
@@ -526,8 +526,8 @@ define i32 @select_or_olt_one(double %v0, double %v1, double %v2, double %v3, i3
 ; CHECK-LABEL: select_or_one_olt:
 ; CHECK-LABEL: ; %bb.0:
 ; CHECK-NEXT: fcmp d0, d1
-; CHECK-NEXT: fccmp d0, d1, #1, ne
-; CHECK-NEXT: fccmp d2, d3, #8, vs
+; CHECK-NEXT: fccmp d0, d1, #8, le
+; CHECK-NEXT: fccmp d2, d3, #8, pl
 ; CHECK-NEXT: csel w0, w0, w1, mi
 ; CHECK-NEXT: ret
 define i32 @select_or_one_olt(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
@@ -556,8 +556,8 @@ define i32 @select_or_olt_ueq(double %v0, double %v1, double %v2, double %v3, i3
 ; CHECK-LABEL: select_or_ueq_olt:
 ; CHECK-LABEL: ; %bb.0:
 ; CHECK-NEXT: fcmp d0, d1
-; CHECK-NEXT: fccmp d0, d1, #8, le
-; CHECK-NEXT: fccmp d2, d3, #8, mi
+; CHECK-NEXT: fccmp d0, d1, #1, ne
+; CHECK-NEXT: fccmp d2, d3, #8, vc
 ; CHECK-NEXT: csel w0, w0, w1, mi
 ; CHECK-NEXT: ret
 define i32 @select_or_ueq_olt(double %v0, double %v1, double %v2, double %v3, i32 %a, i32 %b) #0 {
@@ -656,4 +656,68 @@ define i32 @f128_select_and_olt_oge(fp128 %v0, fp128 %v1, fp128 %v2, fp128 %v3,
   ret i32 %sel
 }
 
+; This testcase resembles the core problem of http://llvm.org/PR39550
+; (an OR operation is 2 levels deep but needs to be implemented first)
+; CHECK-LABEL: deep_or
+; CHECK: cmp w2, #20
+; CHECK-NEXT: ccmp w2, #15, #4, ne
+; CHECK-NEXT: ccmp w1, #0, #4, eq
+; CHECK-NEXT: ccmp w0, #0, #4, ne
+; CHECK-NEXT: csel w0, w4, w5, ne
+; CHECK-NEXT: ret
+define i32 @deep_or(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %x, i32 %y) {
+  %c0 = icmp ne i32 %a0, 0
+  %c1 = icmp ne i32 %a1, 0
+  %c2 = icmp eq i32 %a2, 15
+  %c3 = icmp eq i32 %a2, 20
+
+  %or = or i1 %c2, %c3
+  %and0 = and i1 %or, %c1
+  %and1 = and i1 %and0, %c0
+  %sel = select i1 %and1, i32 %x, i32 %y
+  ret i32 %sel
+}
+
+; Variation of deep_or, we still need to implement the OR first though.
+; CHECK-LABEL: deep_or1
+; CHECK: cmp w2, #20
+; CHECK-NEXT: ccmp w2, #15, #4, ne
+; CHECK-NEXT: ccmp w0, #0, #4, eq
+; CHECK-NEXT: ccmp w1, #0, #4, ne
+; CHECK-NEXT: csel w0, w4, w5, ne
+; CHECK-NEXT: ret
+define i32 @deep_or1(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %x, i32 %y) {
+  %c0 = icmp ne i32 %a0, 0
+  %c1 = icmp ne i32 %a1, 0
+  %c2 = icmp eq i32 %a2, 15
+  %c3 = icmp eq i32 %a2, 20
+
+  %or = or i1 %c2, %c3
+  %and0 = and i1 %c0, %or
+  %and1 = and i1 %and0, %c1
+  %sel = select i1 %and1, i32 %x, i32 %y
+  ret i32 %sel
+}
+
+; Variation of deep_or, we still need to implement the OR first though.
+; CHECK-LABEL: deep_or2
+; CHECK: cmp w2, #20
+; CHECK-NEXT: ccmp w2, #15, #4, ne
+; CHECK-NEXT: ccmp w1, #0, #4, eq
+; CHECK-NEXT: ccmp w0, #0, #4, ne
+; CHECK-NEXT: csel w0, w4, w5, ne
+; CHECK-NEXT: ret
+define i32 @deep_or2(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %x, i32 %y) {
+  %c0 = icmp ne i32 %a0, 0
+  %c1 = icmp ne i32 %a1, 0
+  %c2 = icmp eq i32 %a2, 15
+  %c3 = icmp eq i32 %a2, 20
+
+  %or = or i1 %c2, %c3
+  %and0 = and i1 %c0, %c1
+  %and1 = and i1 %and0, %or
+  %sel = select i1 %and1, i32 %x, i32 %y
+  ret i32 %sel
+}
+
 attributes #0 = { nounwind }