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| author | Kai Luo <lkail@cn.ibm.com> | 2019-12-05 14:01:00 +0800 |
|---|---|---|
| committer | Kai Luo <lkail@cn.ibm.com> | 2019-12-05 14:32:11 +0800 |
| commit | b200c5180e8d6f9ac4e08512a04739ab02cebdb8 (patch) | |
| tree | 0a44eca138cead8b5336e6de1b5f58f59f8448a8 /llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll | |
| parent | 93cc9dddd82f9e971f382ade6acf6634c5914966 (diff) | |
| download | bcm5719-llvm-b200c5180e8d6f9ac4e08512a04739ab02cebdb8.tar.gz bcm5719-llvm-b200c5180e8d6f9ac4e08512a04739ab02cebdb8.zip | |
Reland [MachineCopyPropagation] Extend MCP to do trivial copy backward propagation.
Fix assertion error
```
bool llvm::MachineOperand::isRenamable() const: Assertion `Register::isPhysicalRegister(getReg()) && "isRenamable should only be checked on physical registers"' failed.
```
by checking if the register is 0 before invoking `isRenamable`.
Diffstat (limited to 'llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll b/llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll index 6aaf169dabe..dd41abd093d 100644 --- a/llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll +++ b/llvm/test/CodeGen/PowerPC/redundant-copy-after-tail-dup.ll @@ -26,8 +26,7 @@ define dso_local i1 @t(%class.A* %this, i32 %color, i32 %vertex) local_unnamed_a ; CHECK-P9-NEXT: cmplwi r3, 2 ; CHECK-P9-NEXT: bge- cr0, .LBB0_6 ; CHECK-P9-NEXT: # %bb.3: # %land.lhs.true.1 -; CHECK-P9-NEXT: li r5, 0 -; CHECK-P9-NEXT: mr r3, r5 +; CHECK-P9-NEXT: li r3, 0 ; CHECK-P9-NEXT: blr ; CHECK-P9-NEXT: .LBB0_4: # %lor.lhs.false ; CHECK-P9-NEXT: cmplwi cr0, r4, 0 |
