diff options
author | Ahmed Bougacha <ahmed.bougacha@gmail.com> | 2016-08-02 16:17:15 +0000 |
---|---|---|
committer | Ahmed Bougacha <ahmed.bougacha@gmail.com> | 2016-08-02 16:17:15 +0000 |
commit | 1f82c34de8c1a5feff27a8b3e6a1414fd987fa8c (patch) | |
tree | 7998494dd593c582f3d742e819c295ba53462d9f /lib | |
parent | 31c3e4f36316f677bf33f2a976bd39290e7deb50 (diff) |
[GlobalISel] Verify RegBankSelected MF property.
RegBankSelected functions shouldn't have any generic virtual
register not assigned to a bank. Verify that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277476 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/CodeGen/MachineVerifier.cpp | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp index 8c45ce2648a..9161cda5184 100644 --- a/lib/CodeGen/MachineVerifier.cpp +++ b/lib/CodeGen/MachineVerifier.cpp @@ -70,6 +70,9 @@ namespace { unsigned foundErrors; + // Avoid querying the MachineFunctionProperties for each operand. + bool isFunctionRegBankSelected; + typedef SmallVector<unsigned, 16> RegVector; typedef SmallVector<const uint32_t*, 4> RegMaskVector; typedef DenseSet<unsigned> RegSet; @@ -330,6 +333,9 @@ unsigned MachineVerifier::verify(MachineFunction &MF) { TRI = MF.getSubtarget().getRegisterInfo(); MRI = &MF.getRegInfo(); + isFunctionRegBankSelected = MF.getProperties().hasProperty( + MachineFunctionProperties::Property::RegBankSelected); + LiveVars = nullptr; LiveInts = nullptr; LiveStks = nullptr; @@ -1003,8 +1009,18 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) { report("Generic virtual register must have a size", MO, MONum); return; } - // Make sure the register fits into its register bank if any. + const RegisterBank *RegBank = MRI->getRegBankOrNull(Reg); + + // If we're post-RegBankSelect, the gvreg must have a bank. + if (!RegBank && isFunctionRegBankSelected) { + report("Generic virtual register must have a bank in a " + "RegBankSelected function", + MO, MONum); + return; + } + + // Make sure the register fits into its register bank if any. if (RegBank && RegBank->getSize() < Size) { report("Register bank is too small for virtual register", MO, MONum); |