| ; RUN: opt < %s -jump-threading -S -verify | FileCheck %s |
| |
| target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64" |
| target triple = "nvptx64-nvidia-cuda" |
| |
| $wrapped_tid = comdat any |
| |
| $foo = comdat any |
| |
| define i32 @wrapped_tid() #0 comdat align 32 { |
| %1 = call i32 @tid() |
| ret i32 %1 |
| } |
| |
| declare void @llvm.nvvm.barrier0() #1 |
| |
| ; We had a bug where we duplicated basic blocks containing convergent |
| ; functions like @llvm.nvvm.barrier0 below. Verify that we don't do |
| ; that. |
| define void @foo() local_unnamed_addr #2 comdat align 32 { |
| ; CHECK-LABEL: @foo |
| %1 = call i32 @tid() |
| %2 = urem i32 %1, 7 |
| br label %3 |
| |
| 3: |
| %4 = icmp eq i32 %1, 0 |
| br i1 %4, label %5, label %6 |
| |
| 5: |
| call void @bar() |
| br label %6 |
| |
| 6: |
| ; CHECK: call void @llvm.nvvm.barrier0() |
| ; CHECK-NOT: call void @llvm.nvvm.barrier0() |
| call void @llvm.nvvm.barrier0() |
| %7 = icmp eq i32 %2, 0 |
| br i1 %7, label %11, label %8 |
| |
| 8: |
| %9 = icmp ult i32 %1, 49 |
| br i1 %9, label %10, label %11 |
| |
| 10: |
| call void @llvm.trap() |
| unreachable |
| |
| 11: |
| br label %3 |
| } |
| |
| declare i32 @tid() #2 |
| |
| declare void @bar() |
| |
| declare void @llvm.trap() #3 |
| |
| attributes #1 = { convergent } |
| attributes #2 = { readnone } |
| attributes #3 = { noreturn } |
| attributes #4 = { convergent } |
