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
20 lines
978 B
LLVM
20 lines
978 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_30 -mattr=+ptx40 | FileCheck %s
|
|
; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_30 -mattr=+ptx40 | %ptxas-verify %if !ptxas-11.0 %{-arch=sm_30%} %}
|
|
|
|
; RUN: not --crash llc < %s -march=nvptx -mcpu=sm_20 2>&1 | FileCheck %s --check-prefix ERROR
|
|
; ERROR: LLVM ERROR: .attribute(.managed) requires PTX version >= 4.0 and sm_30
|
|
|
|
; CHECK: .visible .global .align 4 .u32 device_g;
|
|
@device_g = addrspace(1) global i32 zeroinitializer
|
|
; CHECK: .visible .global .attribute(.managed) .align 4 .u32 managed_g;
|
|
@managed_g = addrspace(1) global i32 zeroinitializer
|
|
|
|
; CHECK: .extern .global .align 4 .u32 decl_g;
|
|
@decl_g = external addrspace(1) global i32, align 4
|
|
; CHECK: .extern .global .attribute(.managed) .align 8 .b32 managed_decl_g;
|
|
@managed_decl_g = external addrspace(1) global i32*, align 8
|
|
|
|
!nvvm.annotations = !{!0, !1}
|
|
!0 = !{i32 addrspace(1)* @managed_g, !"managed", i32 1}
|
|
!1 = !{i32* addrspace(1)* @managed_decl_g, !"managed", i32 1}
|