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
15 lines
731 B
LLVM
15 lines
731 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s --check-prefix=PTX32
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; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s --check-prefix=PTX64
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; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_20 | %ptxas-verify %}
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; RUN: %if ptxas %{ llc < %s -march=nvptx64 -mcpu=sm_20 | %ptxas-verify %}
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; PTX32: .visible .global .align 4 .u32 i;
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; PTX32: .visible .const .align 4 .u32 j;
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; PTX32: .visible .shared .align 4 .u32 k;
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; PTX64: .visible .global .align 4 .u32 i;
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; PTX64: .visible .const .align 4 .u32 j;
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; PTX64: .visible .shared .align 4 .u32 k;
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@i = addrspace(1) externally_initialized global i32 0, align 4
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@j = addrspace(4) externally_initialized global i32 0, align 4
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@k = addrspace(3) global i32 undef, align 4
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