Index: lib/Target/R600/SIISelLowering.cpp =================================================================== --- lib/Target/R600/SIISelLowering.cpp +++ lib/Target/R600/SIISelLowering.cpp @@ -490,19 +490,20 @@ MI->eraseFromParent(); break; } - case AMDGPU::V_SUB_F64: - BuildMI(*BB, I, MI->getDebugLoc(), TII->get(AMDGPU::V_ADD_F64), - MI->getOperand(0).getReg()) - .addReg(MI->getOperand(1).getReg()) - .addReg(MI->getOperand(2).getReg()) - .addImm(0) /* src2 */ - .addImm(0) /* ABS */ - .addImm(0) /* CLAMP */ - .addImm(0) /* OMOD */ - .addImm(2); /* NEG */ + case AMDGPU::V_SUB_F64: { + unsigned DestReg = MI->getOperand(0).getReg(); + BuildMI(*BB, I, MI->getDebugLoc(), TII->get(AMDGPU::V_ADD_F64), DestReg) + .addImm(0) // SRC0 modifiers + .addReg(MI->getOperand(1).getReg()) + .addImm(1) // SRC1 modifiers + .addReg(MI->getOperand(2).getReg()) + .addImm(0) // SRC2 modifiers + .addImm(0) // src2 + .addImm(0) // CLAMP + .addImm(0); // OMOD MI->eraseFromParent(); break; - + } case AMDGPU::SI_RegisterStorePseudo: { MachineRegisterInfo &MRI = BB->getParent()->getRegInfo(); unsigned Reg = MRI.createVirtualRegister(&AMDGPU::SReg_64RegClass); Index: lib/Target/R600/SIInstrInfo.td =================================================================== --- lib/Target/R600/SIInstrInfo.td +++ lib/Target/R600/SIInstrInfo.td @@ -416,9 +416,11 @@ class VOP3_64 op, string opName, list pattern> : VOP3 < op, (outs VReg_64:$dst), - (ins VSrc_64:$src0, VSrc_64:$src1, VSrc_64:$src2, - InstFlag:$abs, InstFlag:$clamp, InstFlag:$omod, InstFlag:$neg), - opName#" $dst, $src0, $src1, $src2, $abs, $clamp, $omod, $neg", pattern + (ins InputMods:$src0_modifiers, VSrc_64:$src0, + InputMods:$src1_modifiers, VSrc_64:$src1, + InputMods:$src2_modifiers, VSrc_64:$src2, + InstFlag:$clamp, InstFlag:$omod), + opName#" $dst, $src0_modifiers, $src1_modifiers, $src2_modifiers, $clamp, $omod", pattern >, VOP ; //===----------------------------------------------------------------------===// Index: test/CodeGen/R600/fsub64.ll =================================================================== --- test/CodeGen/R600/fsub64.ll +++ test/CodeGen/R600/fsub64.ll @@ -1,8 +1,7 @@ -; RUN: llc < %s -march=r600 -mcpu=tahiti -verify-machineinstrs | FileCheck %s - -; CHECK: @fsub_f64 -; CHECK: V_ADD_F64 {{v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\]}}, 0, 0, 0, 0, 2 +; RUN: llc -march=r600 -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s +; SI-LABEL: @fsub_f64: +; SI: V_ADD_F64 {{v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\], -v\[[0-9]+:[0-9]+\]}} define void @fsub_f64(double addrspace(1)* %out, double addrspace(1)* %in1, double addrspace(1)* %in2) { %r0 = load double addrspace(1)* %in1