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-rw-r--r--llvm/lib/CodeGen/MachineVerifier.cpp7
-rw-r--r--llvm/test/Verifier/test_g_add.mir11
2 files changed, 16 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index cf9cf75d592..6778dce3972 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -933,6 +933,11 @@ void MachineVerifier::verifyPreISelGenericInstruction(const MachineInstr *MI) {
Types.resize(std::max(TypeIdx + 1, Types.size()));
const MachineOperand *MO = &MI->getOperand(I);
+ if (!MO->isReg()) {
+ report("generic instruction must use register operands", MI);
+ continue;
+ }
+
LLT OpTy = MRI->getType(MO->getReg());
// Don't report a type mismatch if there is no actual mismatch, only a
// type missing, to reduce noise:
@@ -1517,7 +1522,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
return;
}
if (SubIdx) {
- report("Generic virtual register does not subregister index", MO,
+ report("Generic virtual register does not allow subregister index", MO,
MONum);
return;
}
diff --git a/llvm/test/Verifier/test_g_add.mir b/llvm/test/Verifier/test_g_add.mir
index 54c470adc8a..9cd990bb8cc 100644
--- a/llvm/test/Verifier/test_g_add.mir
+++ b/llvm/test/Verifier/test_g_add.mir
@@ -1,4 +1,4 @@
-#RUN: not llc -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
+#RUN: not llc -march=aarch64 -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
# REQUIRES: global-isel, aarch64-registered-target
---
@@ -25,4 +25,13 @@ body: |
; CHECK: Bad machine code: Explicit definition marked as use
G_ADD %0, %1
+ ; CHECK: Bad machine code: generic instruction must use register operands
+ %5:_(s32) = G_ADD %0, 1
+
+ %6:_(s64) = G_CONSTANT i64 0
+
+ ; CHECK: Bad machine code: Type mismatch in generic instruction
+ ; CHECK: Bad machine code: Generic virtual register does not allow subregister index
+ %8:_(s32) = G_ADD %6.sub_32:_(s64), %0
+
...
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