Add fcopysign instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79664 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/SystemZ/SystemZInstrFP.td b/lib/Target/SystemZ/SystemZInstrFP.td
index a5bda24fb02ee06b08bd0931fd31455c02e86ab7..8a202d4523a58a0eba7fb0ff5f094fbffb67c7bd 100644 (file)
--- a/lib/Target/SystemZ/SystemZInstrFP.td
+++ b/lib/Target/SystemZ/SystemZInstrFP.td
@@ -86,6 +86,13 @@ def FMOV64mry : Pseudo<(outs), (ins rriaddr:$dst, FP64:$src),
                        "stdy\t{$src, $dst}",
                        [(store FP64:$src, rriaddr:$dst)]>;
 
+def FCOPYSIGN32 : Pseudo<(outs FP32:$dst), (ins FP32:$src1, FP32:$src2),
+                         "cpsdr\t{$dst, $src2, $src1}",
+                         [(set FP32:$dst, (fcopysign FP32:$src1, FP32:$src2))]>;
+def FCOPYSIGN64 : Pseudo<(outs FP64:$dst), (ins FP64:$src1, FP64:$src2),
+                         "cpsdr\t{$dst, $src2, $src1}",
+                         [(set FP64:$dst, (fcopysign FP64:$src1, FP64:$src2))]>;
+
 //===----------------------------------------------------------------------===//
 // Arithmetic Instructions
 

diff --git a/test/CodeGen/SystemZ/2009-08-22-FCopySign.ll b/test/CodeGen/SystemZ/2009-08-22-FCopySign.ll
new file mode 100644 (file)
index 0000000..caa8065
--- /dev/null
+++ b/test/CodeGen/SystemZ/2009-08-22-FCopySign.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | llc | FileCheck %s
+
+target datalayout = "E-p:64:64:64-i1:8:8-i8:8:16-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:16:16-f128:128:128"
+target triple = "s390x-ibm-linux-gnu"
+
+define double @foo(double %a, double %b) nounwind {
+entry:
+; CHECK: cpsdr %f0, %f2, %f0
+  %0 = tail call double @copysign(double %a, double %b) nounwind readnone
+  ret double %0
+}
+
+define float @bar(float %a, float %b) nounwind {
+entry:
+; CHECK: cpsdr %f0, %f2, %f0
+  %0 = tail call float @copysignf(float %a, float %b) nounwind readnone
+  ret float %0
+}
+
+
+declare double @copysign(double, double) nounwind readnone
+declare float @copysignf(float, float) nounwind readnone