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
620 B
LLVM
15 lines
620 B
LLVM
; RUN: llc < %s -O0 -march=nvptx64 -mcpu=sm_20 | FileCheck %s
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; RUN: %if ptxas %{ llc < %s -O0 -march=nvptx64 -mcpu=sm_20 | %ptxas-verify %}
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; CHECK-LABEL: .visible .func (.param .align 16 .b8 func_retval0[32]) foo(
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define { i128, i128 } @foo(i64 %a, i32 %b) {
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%1 = sext i64 %a to i128
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%2 = sext i32 %b to i128
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%3 = insertvalue { i128, i128 } undef, i128 %1, 0
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%4 = insertvalue { i128, i128 } %3, i128 %2, 1
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; CHECK: st.param.v2.b64 [func_retval0+0], {%[[REG1:rd[0-9]+]], %[[REG2:rd[0-9]+]]};
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; CHECK: st.param.v2.b64 [func_retval0+16], {%[[REG3:rd[0-9]+]], %[[REG4:rd[0-9]+]]};
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ret { i128, i128 } %4
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}
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