diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/GuardWidening/loop-schedule.ll | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/llvm/test/Transforms/GuardWidening/loop-schedule.ll b/llvm/test/Transforms/GuardWidening/loop-schedule.ll index 163fb521d47..94d1c863eac 100644 --- a/llvm/test/Transforms/GuardWidening/loop-schedule.ll +++ b/llvm/test/Transforms/GuardWidening/loop-schedule.ll @@ -3,13 +3,8 @@ ; Main point of this test is to check the scheduling -- there should be ; no analysis passes needed between LICM and LoopGuardWidening -; TODO: Because guard widdening currently requires post-dom, we end up -; breaking the loop pass manager to compute it. Need to either make all -; loop passes preserve postdom (hard) or make it optional in guard widdening ; CHECK: Loop Pass Manager ; CHECK: Loop Invariant Code Motion -; CHECK: Post-Dominator Tree Construction -; CHECK: Loop Pass Manager ; CHECK: Widen guards (within a single loop, as a loop pass) ; CHECK: Loop Invariant Code Motion @@ -21,6 +16,7 @@ define void @iter(i32 %a, i32 %b, i1* %c_p) { ; CHECK: %cond_1 = icmp ult i32 %b, 10 ; CHECK: %wide.chk = and i1 %cond_0, %cond_1 ; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 %wide.chk) [ "deopt"() ] +; CHECK-LABEL: loop: entry: %cond_0 = icmp ult i32 %a, 10 @@ -39,3 +35,30 @@ leave.loopexit: ; preds = %loop leave: ; preds = %leave.loopexit, %entry ret void } + +define void @within_loop(i32 %a, i32 %b, i1* %c_p) { +; CHECK-LABEL @within_loop +; CHECK: %cond_0 = icmp ult i32 %a, 10 +; CHECK: %cond_1 = icmp ult i32 %b, 10 +; CHECK: %wide.chk = and i1 %cond_0, %cond_1 +; CHECK-LABEL: loop: +; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 %wide.chk) [ "deopt"() ] + +entry: + br label %loop + +loop: ; preds = %loop.preheader, %loop + %cond_0 = icmp ult i32 %a, 10 + call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ] + %cond_1 = icmp ult i32 %b, 10 + call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ] + %cnd = load i1, i1* %c_p + br i1 %cnd, label %loop, label %leave.loopexit + +leave.loopexit: ; preds = %loop + br label %leave + +leave: ; preds = %leave.loopexit, %entry + ret void +} + |
