[llvm] r235687 - R600/SI: Fix verifier error when producing v_madmk_f32

[Matt Arsenault]

Author: arsenm
Date: Thu Apr 23 20:57:58 2015
New Revision: 235687

URL: http://llvm.org/viewvc/llvm-project?rev=235687&view=rev
Log:
R600/SI: Fix verifier error when producing v_madmk_f32

Copy the kill flags when swapping the operands.

Modified:
    llvm/trunk/lib/Target/R600/SIInstrInfo.cpp
    llvm/trunk/test/CodeGen/R600/madmk.ll

Modified: llvm/trunk/lib/Target/R600/SIInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIInstrInfo.cpp?rev=235687&r1=235686&r2=235687&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/R600/SIInstrInfo.cpp Thu Apr 23 20:57:58 2015
@@ -970,8 +970,11 @@ bool SIInstrInfo::FoldImmediate(MachineI
       unsigned Src2SubReg = Src2->getSubReg();
       Src0->setReg(Src1Reg);
       Src0->setSubReg(Src1SubReg);
+      Src0->setIsKill(Src1->isKill());
+
       Src1->setReg(Src2Reg);
       Src1->setSubReg(Src2SubReg);
+      Src1->setIsKill(Src2->isKill());
 
       Src2->ChangeToImmediate(Imm);
 

Modified: llvm/trunk/test/CodeGen/R600/madmk.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/R600/madmk.ll?rev=235687&r1=235686&r2=235687&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/R600/madmk.ll (original)
+++ llvm/trunk/test/CodeGen/R600/madmk.ll Thu Apr 23 20:57:58 2015
@@ -179,3 +179,27 @@ define void @madmk_add_inline_imm_f32(fl
   store float %madmk, float addrspace(1)* %out.gep, align 4
   ret void
 }
+
+; SI-LABEL: {{^}}kill_madmk_verifier_error:
+; SI: s_xor_b64
+; SI: v_madmk_f32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}, 0x472aee8c
+; SI: s_or_b64
+define void @kill_madmk_verifier_error() nounwind {
+bb:
+  br label %bb2
+
+bb1:                                              ; preds = %bb2
+  ret void
+
+bb2:                                              ; preds = %bb6, %bb
+  %tmp = phi float [ undef, %bb ], [ %tmp8, %bb6 ]
+  %tmp3 = fsub float undef, %tmp
+  %tmp5 = fcmp oeq float %tmp3, 1.000000e+04
+  br i1 %tmp5, label %bb1, label %bb6
+
+bb6:                                              ; preds = %bb2
+  %tmp4 = fmul float %tmp, undef
+  %tmp7 = fmul float %tmp4, 0x40E55DD180000000
+  %tmp8 = fadd float %tmp7, undef
+  br label %bb2
+}