R600/SI: Implement sint<->fp64 conversions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187987 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td
index 52af79ccc25096ec9858ce3504d4b5722e48c4b7..302fa2475cfea0b93d35f6a054856247a775c43c 100644 (file)
--- a/lib/Target/R600/SIInstrInfo.td
+++ b/lib/Target/R600/SIInstrInfo.td
@@ -184,6 +184,12 @@ multiclass VOP1_32 <bits<8> op, string opName, list<dag> pattern>
 multiclass VOP1_64 <bits<8> op, string opName, list<dag> pattern>
   : VOP1_Helper <op, VReg_64, VSrc_64, opName, pattern>;
 
+multiclass VOP1_32_64 <bits<8> op, string opName, list<dag> pattern>
+  : VOP1_Helper <op, VReg_32, VSrc_64, opName, pattern>;
+
+multiclass VOP1_64_32 <bits<8> op, string opName, list<dag> pattern>
+  : VOP1_Helper <op, VReg_64, VSrc_32, opName, pattern>;
+
 multiclass VOP2_Helper <bits<6> op, RegisterClass vrc, RegisterClass arc,
                         string opName, list<dag> pattern, string revOp> {
   def _e32 : VOP2 <

diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 500d15e8f4363b21271aac812ad925012d022ea3..efe7a3ea6801ff694f15264d7f79f75bc38edd74 100644 (file)
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -603,8 +603,12 @@ defm V_MOV_B32 : VOP1_32 <0x00000001, "V_MOV_B32", []>;
 } // End neverHasSideEffects = 1, isMoveImm = 1
 
 defm V_READFIRSTLANE_B32 : VOP1_32 <0x00000002, "V_READFIRSTLANE_B32", []>;
-//defm V_CVT_I32_F64 : VOP1_32 <0x00000003, "V_CVT_I32_F64", []>;
-//defm V_CVT_F64_I32 : VOP1_64 <0x00000004, "V_CVT_F64_I32", []>;
+defm V_CVT_I32_F64 : VOP1_32_64 <0x00000003, "V_CVT_I32_F64",
+  [(set i32:$dst, (fp_to_sint f64:$src0))]
+>;
+defm V_CVT_F64_I32 : VOP1_64_32 <0x00000004, "V_CVT_F64_I32",
+  [(set f64:$dst, (sint_to_fp i32:$src0))]
+>;
 defm V_CVT_F32_I32 : VOP1_32 <0x00000005, "V_CVT_F32_I32",
   [(set f32:$dst, (sint_to_fp i32:$src0))]
 >;

diff --git a/test/CodeGen/R600/fp64_to_sint.ll b/test/CodeGen/R600/fp64_to_sint.ll
new file mode 100644 (file)
index 0000000..42f9f34
--- /dev/null
+++ b/test/CodeGen/R600/fp64_to_sint.ll
@@ -0,0 +1,9 @@
+; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck %s --check-prefix=CHECK
+
+; CHECK: @fp64_to_sint
+; CHECK: V_CVT_I32_F64_e32
+define void @fp64_to_sint(i32 addrspace(1)* %out, double %in) {
+  %result = fptosi double %in to i32
+  store i32 %result, i32 addrspace(1)* %out
+  ret void
+}

diff --git a/test/CodeGen/R600/sint_to_fp64.ll b/test/CodeGen/R600/sint_to_fp64.ll
new file mode 100644 (file)
index 0000000..37f67c9
--- /dev/null
+++ b/test/CodeGen/R600/sint_to_fp64.ll
@@ -0,0 +1,9 @@
+; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck %s --check-prefix=CHECK
+
+; CHECK: @sint_to_fp64
+; CHECK: V_CVT_F64_I32_e32
+define void @sint_to_fp64(double addrspace(1)* %out, i32 %in) {
+  %result = sitofp i32 %in to double
+  store double %result, double addrspace(1)* %out
+  ret void
+}