[FastISel] fix a fallback diagnostic.

Summary: FastISel was marked as failed in case instruction selection succeeded.

Reviewers: qcolombet, zvi, rovka, ab

Reviewed By: zvi

Subscribers: javed.absar, ab, qcolombet, bogner, llvm-commits

Differential Revision: https://reviews.llvm.org/D34438

llvm-svn: 307489

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 72b1b39a524..bdf57e80584 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1483,7 +1483,6 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
 
         // Try to select the instruction with FastISel.
         if (FastIS->selectInstruction(Inst)) {
-          FastISelFailed = true;
           --NumFastIselRemaining;
           ++NumFastIselSuccess;
           // If fast isel succeeded, skip over all the folded instructions, and
@@ -1506,6 +1505,8 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
           continue;
         }
 
+        FastISelFailed = true;
+
         // Then handle certain instructions as single-LLVM-Instruction blocks.
         // We cannot separate out GCrelocates to their own blocks since we need
         // to keep track of gc-relocates for a particular gc-statepoint. This is