Remove the code from CodeGenPrepare that moved getresult instructions

to the block that defines their operands. This doesn't work in the
case that the operand is an invoke, because invoke is a terminator
and must be the last instruction in a block.

Replace it with support in SelectionDAGISel for copying struct values
into sequences of virtual registers.

llvm-svn: 50279

1 files changed, 0 insertions, 9 deletions

diff --git a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
index 532af2511e1..4be37a33cf4 100644
--- a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -1127,15 +1127,6 @@ bool CodeGenPrepare::OptimizeBlock(BasicBlock &BB) {
             // Sink address computing for memory operands into the block.
             MadeChange |= OptimizeInlineAsmInst(I, &(*CI), SunkAddrs);
         }
-    } else if (GetResultInst *GRI = dyn_cast<GetResultInst>(I)) {
-      // Ensure that all getresult instructions live in the same basic block
-      // as their associated struct-value instructions. Codegen requires
-      // this, as lowering only works on one basic block at a time.
-      if (Instruction *Agg = dyn_cast<Instruction>(GRI->getAggregateValue())) {
-        BasicBlock *AggBB = Agg->getParent();
-        if (AggBB != GRI->getParent())
-          GRI->moveBefore(AggBB->getTerminator());
-      }
     }
   }