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authorLuís Marques <luismarques@lowrisc.org>2022-07-30 01:07:44 +0200
committerLuís Marques <luismarques@lowrisc.org>2022-07-31 23:19:00 +0200
commit260a64106854986a981e49ed87ee740460a23eb5 (patch)
tree17507ad1c18f015effdb838562092cf682ee7909 /llvm/lib/CodeGen/MachineInstr.cpp
parent883fcccadaa08e0dbf5cbef7a38f00d520c305a8 (diff)
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[RISCV] Pre-RA expand pseudos pass
Expand load address pseudo-instructions earlier (pre-ra) to allow follow-up patches to fold the addi of PseudoLLA instructions into the immediate operand of load/store instructions. Differential Revision: https://reviews.llvm.org/D123264
Diffstat (limited to 'llvm/lib/CodeGen/MachineInstr.cpp')
-rw-r--r--llvm/lib/CodeGen/MachineInstr.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index e92dec5..2321a27 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -630,6 +630,11 @@ bool MachineInstr::isIdenticalTo(const MachineInstr &Other,
if (getDebugLoc() && Other.getDebugLoc() &&
getDebugLoc() != Other.getDebugLoc())
return false;
+ // If pre- or post-instruction symbols do not match then the two instructions
+ // are not identical.
+ if (getPreInstrSymbol() != Other.getPreInstrSymbol() ||
+ getPostInstrSymbol() != Other.getPostInstrSymbol())
+ return false;
return true;
}