0f1b5f115a
ptxas is a proprietary compiler from Nvidia that can compile PTX to machine code (SASS). It has a lot of diagnostics to catch errors in PTX, which can be used to verify PTX output from llc. Set -DPXTAS_EXECUTABLE=/path/to/ptxas CMake option to enable it. If this option is not set, then ptxas is substituted to true which effectively disables all ptxas RUN lines. LLVM_PTXAS_EXECUTABLE environment variable takes precedence over the CMake option, and allows to override ptxas executable that is used for LIT without complete re-configuration. Differential Revision: https://reviews.llvm.org/D121727
18 lines
643 B
LLVM
18 lines
643 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 -verify-machineinstrs | FileCheck %s
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; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_20 -verify-machineinstrs | %ptxas-verify %}
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target triple = "nvptx-unknown-nvcl"
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declare void @llvm.nvvm.sust.b.1d.i32.trap(i64, i32, i32)
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; CHECK: .entry foo
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define void @foo(i64 %img, i32 %val, i32 %idx) {
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; CHECK: sust.b.1d.b32.trap [foo_param_0, {%r{{[0-9]+}}}], {%r{{[0-9]+}}}
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tail call void @llvm.nvvm.sust.b.1d.i32.trap(i64 %img, i32 %idx, i32 %val)
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ret void
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}
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!nvvm.annotations = !{!1, !2}
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!1 = !{void (i64, i32, i32)* @foo, !"kernel", i32 1}
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!2 = !{void (i64, i32, i32)* @foo, !"wroimage", i32 0}
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