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