1 files changed, 51 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-fcopysign.ll b/test/CodeGen/AArch64/arm64-fcopysign.ll
new file mode 100644
index 0000000000..66241df944
--- /dev/null
+++ b/test/CodeGen/AArch64/arm64-fcopysign.ll
@@ -0,0 +1,51 @@
+; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s
+
+; rdar://9332258
+
+define float @test1(float %x, float %y) nounwind {
+entry:
+; CHECK-LABEL: test1:
+; CHECK: movi.4s	v2, #0x80, lsl #24
+; CHECK: bit.16b	v0, v1, v2
+  %0 = tail call float @copysignf(float %x, float %y) nounwind readnone
+  ret float %0
+}
+
+define double @test2(double %x, double %y) nounwind {
+entry:
+; CHECK-LABEL: test2:
+; CHECK: movi.2d	v2, #0
+; CHECK: fneg.2d	v2, v2
+; CHECK: bit.16b	v0, v1, v2
+  %0 = tail call double @copysign(double %x, double %y) nounwind readnone
+  ret double %0
+}
+
+; rdar://9545768
+define double @test3(double %a, float %b, float %c) nounwind {
+; CHECK-LABEL: test3:
+; CHECK: fcvt d1, s1
+; CHECK: fneg.2d v2, v{{[0-9]+}}
+; CHECK: bit.16b v0, v1, v2
+  %tmp1 = fadd float %b, %c
+  %tmp2 = fpext float %tmp1 to double
+  %tmp = tail call double @copysign( double %a, double %tmp2 ) nounwind readnone
+  ret double %tmp
+}
+
+define float @test4() nounwind {
+entry:
+; CHECK-LABEL: test4:
+; CHECK: fcvt s0, d0
+; CHECK: movi.4s v[[CONST:[0-9]+]], #0x80, lsl #24
+; CHECK: bit.16b v{{[0-9]+}}, v0, v[[CONST]]
+  %0 = tail call double (...)* @bar() nounwind
+  %1 = fptrunc double %0 to float
+  %2 = tail call float @copysignf(float 5.000000e-01, float %1) nounwind readnone
+  %3 = fadd float %1, %2
+  ret float %3
+}
+
+declare double @bar(...)
+declare double @copysign(double, double) nounwind readnone
+declare float @copysignf(float, float) nounwind readnone