From bf8e161bd97bf06d7c1d35a4d14034836606184b Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Thu, 21 Apr 2016 21:02:25 +0000
Subject: [PATCH] add tests for disguised fabs/fneg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267053 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/AArch64/fcvt-int.ll | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/test/CodeGen/AArch64/fcvt-int.ll b/test/CodeGen/AArch64/fcvt-int.ll
index d549c7e7842..9092bea8c2a 100644
--- a/test/CodeGen/AArch64/fcvt-int.ll
+++ b/test/CodeGen/AArch64/fcvt-int.ll
@@ -149,3 +149,32 @@ define double @test_bitcasti64todouble(i64 %in) {
    ret double %res
 
 }
+
+define double @bitcast_fabs(double %x) {
+; CHECK-LABEL: bitcast_fabs:
+; CHECK:       ; BB#0:
+; CHECK-NEXT:    fmov x8, d0
+; CHECK-NEXT:    and x8, x8, #0x7fffffffffffffff
+; CHECK-NEXT:    fmov d0, x8
+; CHECK-NEXT:    ret
+;
+  %bc1 = bitcast double %x to i64
+  %and = and i64 %bc1, 9223372036854775807
+  %bc2 = bitcast i64 %and to double
+  ret double %bc2
+}
+
+define float @bitcast_fneg(float %x) {
+; CHECK-LABEL: bitcast_fneg:
+; CHECK:       ; BB#0:
+; CHECK-NEXT:    fmov w8, s0
+; CHECK-NEXT:    eor w8, w8, #0x80000000
+; CHECK-NEXT:    fmov s0, w8
+; CHECK-NEXT:    ret
+;
+  %bc1 = bitcast float %x to i32
+  %xor = xor i32 %bc1, 2147483648
+  %bc2 = bitcast i32 %xor to float
+  ret float %bc2
+}
+
-- 
2.11.0