add float -> double and double -> float conversion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30835 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 3aab1d280f753affe276d8726ce05acf581082bd..9d4649a558985fadad6f6858ecd6b125bf82b412 100644 (file)
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -200,6 +200,11 @@ def FUITOS  : InstARM<(ops FPRegs:$dst, FPRegs:$src),
 def FUITOD  : InstARM<(ops DFPRegs:$dst, FPRegs:$src),
                        "fuitod $dst, $src", [(set DFPRegs:$dst, (armfuitod FPRegs:$src))]>;
 
+def FCVTDS  : InstARM<(ops DFPRegs:$dst, FPRegs:$src),
+                       "fcvtds $dst, $src", [(set DFPRegs:$dst, (fextend FPRegs:$src))]>;
+
+def FCVTSD  : InstARM<(ops FPRegs:$dst, DFPRegs:$src),
+                       "fcvtsd $dst, $src", [(set FPRegs:$dst, (fround DFPRegs:$src))]>;
 
 // Floating Point Arithmetic
 def FADDS   : InstARM<(ops FPRegs:$dst, FPRegs:$a, FPRegs:$b),

diff --git a/test/CodeGen/ARM/fpconv.ll b/test/CodeGen/ARM/fpconv.ll
new file mode 100644 (file)
index 0000000..310a115
--- /dev/null
+++ b/test/CodeGen/ARM/fpconv.ll
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llc -march=arm &&
+; RUN: llvm-as < %s | llc -march=arm | grep fcvtds &&
+; RUN: llvm-as < %s | llc -march=arm | grep fcvtsd
+
+float %f(double %x) {
+entry:
+       %tmp1 = cast double %x to float
+       ret float %tmp1
+}
+
+double %g(float %x) {
+entry:
+       %tmp1 = cast float %x to double
+       ret double %tmp1
+}