[PowerPC] Fix inconsistent ImmMustBeMultipleOf for same instruction

Summary:
There are 4 instructions which have Inconsistent ImmMustBeMultipleOf in the
function PPCInstrInfo::instrHasImmForm, they are LFS, LFD, STFS, STFD.
These four instructions should set the ImmMustBeMultipleOf to 1 instead of 4.

Reviewed By: steven.zhang

Differential Revision: https://reviews.llvm.org/D54738

llvm-svn: 348109

1 files changed, 12 insertions, 4 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 559ed59bec9..0eaadd70a47 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -2984,8 +2984,10 @@ bool PPCInstrInfo::instrHasImmForm(const MachineInstr &MI,
       if (PostRA) {
         if (isVFReg(MI.getOperand(0).getReg()))
           III.ImmOpcode = PPC::LXSSP;
-        else
+        else {
           III.ImmOpcode = PPC::LFS;
+          III.ImmMustBeMultipleOf = 1;
+        }
         break;
       }
       LLVM_FALLTHROUGH;
@@ -2996,8 +2998,10 @@ bool PPCInstrInfo::instrHasImmForm(const MachineInstr &MI,
       if (PostRA) {
         if (isVFReg(MI.getOperand(0).getReg()))
           III.ImmOpcode = PPC::LXSD;
-        else
+        else {
           III.ImmOpcode = PPC::LFD;
+          III.ImmMustBeMultipleOf = 1;
+        }
         break;
       }
       LLVM_FALLTHROUGH;
@@ -3012,8 +3016,10 @@ bool PPCInstrInfo::instrHasImmForm(const MachineInstr &MI,
       if (PostRA) {
         if (isVFReg(MI.getOperand(0).getReg()))
           III.ImmOpcode = PPC::STXSSP;
-        else
+        else {
           III.ImmOpcode = PPC::STFS;
+          III.ImmMustBeMultipleOf = 1;
+        }
         break;
       }
       LLVM_FALLTHROUGH;
@@ -3024,8 +3030,10 @@ bool PPCInstrInfo::instrHasImmForm(const MachineInstr &MI,
       if (PostRA) {
         if (isVFReg(MI.getOperand(0).getReg()))
           III.ImmOpcode = PPC::STXSD;
-        else
+        else {
           III.ImmOpcode = PPC::STFD;
+          III.ImmMustBeMultipleOf = 1;
+        }
         break;
       }
       LLVM_FALLTHROUGH;