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
22 lines
692 B
LLVM
22 lines
692 B
LLVM
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
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; RUN: %if ptxas %{ llc < %s -march=nvptx -mcpu=sm_20 | %ptxas-verify %}
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target datalayout = "e-p:32:32:32-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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; module asm must come after PTX version/target directives.
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; CHECK-NOT: .global .b32 val;
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; CHECK-DAG: .version
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; CHECK-DAG: .target
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; CHECK: .global .b32 val;
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module asm ".global .b32 val;"
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; module asm must happen before we emit other things.
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; CHECK-LABEL: .visible .func foo
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define void @foo() {
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ret void
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}
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; Make sure it does not show up anywhere else in the output.
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; CHECK-NOT: .global .b32 val;
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