[llvm] [RISCV] Add SMLoc to expanded vector pseudoinstructions in AsmParser. (PR #84875)

Craig Topper via llvm-commits llvm-commits at lists.llvm.org
Mon Mar 11 22:42:25 PDT 2024


https://github.com/topperc created https://github.com/llvm/llvm-project/pull/84875

This is needed for llvm-mca to correctly apply vsetvli instruments to these instructions.

Fixes #84799.

>From 87b0475aa3edd2af76066a575ffe198b14619bfd Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper at sifive.com>
Date: Mon, 11 Mar 2024 22:40:49 -0700
Subject: [PATCH] [RISCV] Add SMLoc to expanded vector pseudoinstructions in
 AsmParser.

This is needed for llvm-mca to correctly apply vsetvli instruments
to these instructions.

Fixes #84799.
---
 llvm/include/llvm/MC/MCInstBuilder.h          |  6 +++
 .../Target/RISCV/AsmParser/RISCVAsmParser.cpp | 39 ++++++++++++-------
 2 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/llvm/include/llvm/MC/MCInstBuilder.h b/llvm/include/llvm/MC/MCInstBuilder.h
index 6e5e9dd69018f4..d06ed4c6c840a9 100644
--- a/llvm/include/llvm/MC/MCInstBuilder.h
+++ b/llvm/include/llvm/MC/MCInstBuilder.h
@@ -27,6 +27,12 @@ class MCInstBuilder {
     Inst.setOpcode(Opcode);
   }
 
+  /// Set the location.
+  MCInstBuilder &setLoc(SMLoc SM) {
+    Inst.setLoc(SM);
+    return *this;
+  }
+
   /// Add a new register operand.
   MCInstBuilder &addReg(unsigned Reg) {
     Inst.addOperand(MCOperand::createReg(Reg));
diff --git a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
index d83979a873f2a3..caff0e8fcefe23 100644
--- a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
+++ b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
@@ -3271,11 +3271,13 @@ void RISCVAsmParser::emitVMSGE(MCInst &Inst, unsigned Opcode, SMLoc IDLoc,
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(1))
                             .addOperand(Inst.getOperand(2))
-                            .addReg(RISCV::NoRegister));
+                            .addReg(RISCV::NoRegister)
+                            .setLoc(IDLoc));
     emitToStreamer(Out, MCInstBuilder(RISCV::VMNAND_MM)
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(0))
-                            .addOperand(Inst.getOperand(0)));
+                            .addOperand(Inst.getOperand(0))
+                            .setLoc(IDLoc));
   } else if (Inst.getNumOperands() == 4) {
     // masked va >= x, vd != v0
     //
@@ -3287,11 +3289,13 @@ void RISCVAsmParser::emitVMSGE(MCInst &Inst, unsigned Opcode, SMLoc IDLoc,
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(1))
                             .addOperand(Inst.getOperand(2))
-                            .addOperand(Inst.getOperand(3)));
+                            .addOperand(Inst.getOperand(3))
+                            .setLoc(IDLoc));
     emitToStreamer(Out, MCInstBuilder(RISCV::VMXOR_MM)
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(0))
-                            .addReg(RISCV::V0));
+                            .addReg(RISCV::V0)
+                            .setLoc(IDLoc));
   } else if (Inst.getNumOperands() == 5 &&
              Inst.getOperand(0).getReg() == RISCV::V0) {
     // masked va >= x, vd == v0
@@ -3306,11 +3310,13 @@ void RISCVAsmParser::emitVMSGE(MCInst &Inst, unsigned Opcode, SMLoc IDLoc,
                             .addOperand(Inst.getOperand(1))
                             .addOperand(Inst.getOperand(2))
                             .addOperand(Inst.getOperand(3))
-                            .addReg(RISCV::NoRegister));
+                            .addReg(RISCV::NoRegister)
+                            .setLoc(IDLoc));
     emitToStreamer(Out, MCInstBuilder(RISCV::VMANDN_MM)
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(0))
-                            .addOperand(Inst.getOperand(1)));
+                            .addOperand(Inst.getOperand(1))
+                            .setLoc(IDLoc));
   } else if (Inst.getNumOperands() == 5) {
     // masked va >= x, any vd
     //
@@ -3323,19 +3329,23 @@ void RISCVAsmParser::emitVMSGE(MCInst &Inst, unsigned Opcode, SMLoc IDLoc,
                             .addOperand(Inst.getOperand(1))
                             .addOperand(Inst.getOperand(2))
                             .addOperand(Inst.getOperand(3))
-                            .addReg(RISCV::NoRegister));
+                            .addReg(RISCV::NoRegister)
+                            .setLoc(IDLoc));
     emitToStreamer(Out, MCInstBuilder(RISCV::VMANDN_MM)
                             .addOperand(Inst.getOperand(1))
                             .addReg(RISCV::V0)
-                            .addOperand(Inst.getOperand(1)));
+                            .addOperand(Inst.getOperand(1))
+                            .setLoc(IDLoc));
     emitToStreamer(Out, MCInstBuilder(RISCV::VMANDN_MM)
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(0))
-                            .addReg(RISCV::V0));
+                            .addReg(RISCV::V0)
+                            .setLoc(IDLoc));
     emitToStreamer(Out, MCInstBuilder(RISCV::VMOR_MM)
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(1))
-                            .addOperand(Inst.getOperand(0)));
+                            .addOperand(Inst.getOperand(0))
+                            .setLoc(IDLoc));
   }
 }
 
@@ -3637,7 +3647,8 @@ bool RISCVAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc,
                             .addOperand(Inst.getOperand(0))
                             .addOperand(Inst.getOperand(1))
                             .addImm(Imm - 1)
-                            .addOperand(Inst.getOperand(3)));
+                            .addOperand(Inst.getOperand(3))
+                            .setLoc(IDLoc));
     return false;
   }
   case RISCV::PseudoVMSGEU_VI:
@@ -3655,7 +3666,8 @@ bool RISCVAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc,
                               .addOperand(Inst.getOperand(0))
                               .addOperand(Inst.getOperand(1))
                               .addOperand(Inst.getOperand(1))
-                              .addOperand(Inst.getOperand(3)));
+                              .addOperand(Inst.getOperand(3))
+                              .setLoc(IDLoc));
     } else {
       // Other immediate values can subtract one like signed.
       unsigned Opc = Inst.getOpcode() == RISCV::PseudoVMSGEU_VI
@@ -3665,7 +3677,8 @@ bool RISCVAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc,
                               .addOperand(Inst.getOperand(0))
                               .addOperand(Inst.getOperand(1))
                               .addImm(Imm - 1)
-                              .addOperand(Inst.getOperand(3)));
+                              .addOperand(Inst.getOperand(3))
+                              .setLoc(IDLoc));
     }
 
     return false;



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