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
16 lines
367 B
LLVM
16 lines
367 B
LLVM
; RUN: llc -filetype=asm -o - %s | FileCheck %s
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; RUN: %if ptxas %{ llc -filetype=asm -o - %s | %ptxas-verify %}
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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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%func = type { i32 (i32, i32)** }
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; CHECK: foo
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; CHECK: call
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; CHECK: ret
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define void @foo() {
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%call = call %func undef(i32 0, i32 1)
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ret void
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}
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