llvm-6502/test/CodeGen/R600/trunc-vector-store-assertion-failure.ll

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s

; This tests for a bug in the SelectionDAG where custom lowered truncated
; vector stores at the end of a basic block were not being added to the
; LegalizedNodes list, which triggered an assertion failure.

; CHECK-LABEL: {{^}}test:
; CHECK: MEM_RAT_CACHELESS STORE_RAW
define void @test(<4 x i8> addrspace(1)* %out, i32 %cond, <4 x i8> %in) {
entry:
  %0 = icmp eq i32 %cond, 0
  br i1 %0, label %if, label %done

if:
  store <4 x i8> %in, <4 x i8> addrspace(1)* %out
  br label %done

done:
  ret void
}
SelectionDAG: Make sure stores are always added to the LegalizedNodes list When truncated vector stores were being custom lowered in VectorLegalizer::LegalizeOp(), the old (illegal) and new (legal) node pair was not being added to LegalizedNodes list. Instead of the legalized result being passed to VectorLegalizer::TranslateLegalizeResult(), the result was being passed back into VectorLegalizer::LegalizeOp(), which ended up adding a (new, new) pair to the list instead. This was causing an assertion failure when a custom lowered truncated vector store was the last instruction a basic block and the VectorLegalizer was unable to find it in the LegalizedNodes list when updating the DAG root. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188953 91177308-0d34-0410-b5e6-96231b3b80d8 2013-08-21 22:42:58 +00:00			`; RUN: llc < %s -march=r600 -mcpu=redwood \| FileCheck %s`

			`; This tests for a bug in the SelectionDAG where custom lowered truncated`
			`; vector stores at the end of a basic block were not being added to the`
			`; LegalizedNodes list, which triggered an assertion failure.`

R600: Call EmitFunctionHeader() in the AsmPrinter to populate the ELF symbol table git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218776 91177308-0d34-0410-b5e6-96231b3b80d8 2014-10-01 17:15:17 +00:00			`; CHECK-LABEL: {{^}}test:`
SelectionDAG: Make sure stores are always added to the LegalizedNodes list When truncated vector stores were being custom lowered in VectorLegalizer::LegalizeOp(), the old (illegal) and new (legal) node pair was not being added to LegalizedNodes list. Instead of the legalized result being passed to VectorLegalizer::TranslateLegalizeResult(), the result was being passed back into VectorLegalizer::LegalizeOp(), which ended up adding a (new, new) pair to the list instead. This was causing an assertion failure when a custom lowered truncated vector store was the last instruction a basic block and the VectorLegalizer was unable to find it in the LegalizedNodes list when updating the DAG root. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188953 91177308-0d34-0410-b5e6-96231b3b80d8 2013-08-21 22:42:58 +00:00			`; CHECK: MEM_RAT_CACHELESS STORE_RAW`
			`define void @test(<4 x i8> addrspace(1)* %out, i32 %cond, <4 x i8> %in) {`
			`entry:`
			`%0 = icmp eq i32 %cond, 0`
			`br i1 %0, label %if, label %done`

			`if:`
			`store <4 x i8> %in, <4 x i8> addrspace(1)* %out`
			`br label %done`

			`done:`
			`ret void`
			`}`