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
14 lines
356 B
LLVM
14 lines
356 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 -O0 | FileCheck %s
|
|
; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_20 -O0 | %ptxas-verify %}
|
|
|
|
define void @foo(i32* %output) {
|
|
; CHECK-LABEL: .visible .func foo(
|
|
entry:
|
|
%local = alloca i32
|
|
; CHECK: __local_depot
|
|
store i32 1, i32* %local
|
|
%0 = load i32, i32* %local
|
|
store i32 %0, i32* %output
|
|
ret void
|
|
}
|