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
28 lines
952 B
LLVM
28 lines
952 B
LLVM
; RUN: llc < %s -march=nvptx64 -mcpu=sm_30 -verify-machineinstrs | FileCheck %s
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; RUN: %if ptxas %{ llc < %s -march=nvptx64 -mcpu=sm_30 -verify-machineinstrs | %ptxas-verify %if !ptxas-11.0 %{-arch=sm_30%} %}
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; The zeroext attribute below should be silently ignored because
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; we can pass a 32-bit integer across a function call without
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; needing to extend it.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
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target triple = "nvptx64-unknown-cuda"
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; CHECK-LABEL: .visible .func zeroext_test
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; CHECK-NOT: cvt.u32.u16
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define void @zeroext_test() {
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tail call void @call1(i32 zeroext 0)
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ret void
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}
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declare void @call1(i32 zeroext)
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; CHECK-LABEL: .visible .func signext_test
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; CHECK-NOT: cvt.s32.s16
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define void @signext_test() {
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tail call void @call2(i32 zeroext 0)
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ret void
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}
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declare void @call2(i32 zeroext)
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