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llvm-mirror/test/CodeGen/NVPTX/nofunc.ll
Artem Belevich f4a6455e0c [NVPTX] do not rely on cached subtarget info.
If a module has function references, but no functions
themselves, we may end up never calling runOnMachineFunction
and therefore would never initialize nvptxSubtarget field
which would eventually cause a crash.

Instead of relying on nvptxSubtarget being initialized by
one of the methods, retrieve subtarget info directly.

Differential Revision: https://reviews.llvm.org/D55580

llvm-svn: 348952
2018-12-12 18:31:04 +00:00

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LLVM

; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s
; Test that we don't crash if we're compiling a module with function references,
; but without any functions in it.
target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
target triple = "nvptx64-nvidia-cuda"
@Funcs = local_unnamed_addr addrspace(1) externally_initialized
global [1 x void (i8*)*] [void (i8*)* @func], align 8
declare void @func(i8*)
; CHECK: Funcs[1] = {func}