Update testcase; update algorithm to something maybe right

Author: linuxrocks123

llvm/lib/Target/AMDGPU/AMDGPUIGroupLP.cpp

@@ -2408,9 +2408,9 @@ bool SchedGroup::canAddMI(const MachineInstr &MI) const {
       }
 
     unsigned long InlineAsmMask = 0;
-    if (VGPR_used && !VMFMA_used && !MayLoad && !MayStore)
+    if (VGPR_used && !SGPR_used && !VMFMA_used && !MayLoad && !MayStore)
       InlineAsmMask |= (unsigned long)SchedGroupMask::VALU;
-    if (SGPR_used && !MayLoad && !MayStore) //arsenm: should this have !VGPR_used?
+    if (SGPR_used && !MayLoad && !MayStore)
       InlineAsmMask |= (unsigned long)SchedGroupMask::SALU;
     if (VMFMA_used)
       InlineAsmMask |= (unsigned long)SchedGroupMask::MFMA;

llvm/test/CodeGen/AMDGPU/inlineasm-sgmask.ll

@@ -1,7 +1,7 @@
 ; RUN: llc -O3 -mcpu=gfx942 < %s | FileCheck %s
 ; CHECK: v_add_f32_e32
 ; CHECK-NEXT: ;;#ASMSTART
-; CHECK-NEXT: v_add_f32_e32
+; CHECK-NEXT: v_mfma_f64
 ; CHECK-NEXT: ;;#ASMEND
 ; CHECK: v_add_f32_e32
 ; ModuleID = '<stdin>'