diff options
Diffstat (limited to 'llvm/test/Transforms/LoopIdiom/pr33114.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopIdiom/pr33114.ll | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopIdiom/pr33114.ll b/llvm/test/Transforms/LoopIdiom/pr33114.ll new file mode 100644 index 00000000000..fa44d8e31e7 --- /dev/null +++ b/llvm/test/Transforms/LoopIdiom/pr33114.ll @@ -0,0 +1,35 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; Check that we're not crashing while looking at the recurrence variable. +; RUN: opt -S -loop-idiom %s | FileCheck %s + +define void @tinkywinky() { +; CHECK-LABEL: @tinkywinky( +; CHECK-NEXT: entry: +; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[PH:%.*]] +; CHECK: ph: +; CHECK-NEXT: [[MYPHI:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ] +; CHECK-NEXT: br label [[IF_END:%.*]] +; CHECK: if.end: +; CHECK-NEXT: [[PATATINO:%.*]] = ashr i32 [[MYPHI]], undef +; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[PATATINO]], 0 +; CHECK-NEXT: br i1 [[TOBOOL]], label [[EXIT_LOOPEXIT:%.*]], label [[IF_END]] +; CHECK: exit.loopexit: +; CHECK-NEXT: br label [[EXIT]] +; CHECK: exit: +; CHECK-NEXT: ret void +; +entry: + br i1 true, label %exit, label %ph + +ph: + %myphi = phi i32 [ 1, %entry ] + br label %if.end + +if.end: + %patatino = ashr i32 %myphi, undef + %tobool = icmp eq i32 %patatino, 0 + br i1 %tobool, label %exit, label %if.end + +exit: + ret void +} |
