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149 lines
5.3 KiB
LLVM
149 lines
5.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
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; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_75 -mattr=+ptx82 | FileCheck %s --check-prefix=PTX82
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; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_75 -mattr=+ptx83 | FileCheck %s --check-prefix=PTX83
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; RUN: %if ptxas-sm_75 && ptxas-isa-8.2 %{ llc < %s -mtriple=nvptx64 -mcpu=sm_75 -mattr=+ptx82 | %ptxas-verify -arch=sm_75 %}
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; RUN: %if ptxas-sm_75 && ptxas-isa-8.3 %{ llc < %s -mtriple=nvptx64 -mcpu=sm_75 -mattr=+ptx83 | %ptxas-verify -arch=sm_75 %}
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target triple = "nvptx64-nvidia-cuda"
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define internal i32 @callee(i32 %x) noinline {
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; PTX82-LABEL: callee(
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; PTX82: {
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; PTX82-NEXT: .reg .b32 %r<3>;
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; PTX82-EMPTY:
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; PTX82-NEXT: // %bb.0:
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; PTX82-NEXT: ld.param.b32 %r1, [callee_param_0];
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; PTX82-NEXT: add.s32 %r2, %r1, 1;
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; PTX82-NEXT: st.param.b32 [func_retval0], %r2;
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; PTX82-NEXT: ret;
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;
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; PTX83-LABEL: callee(
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; PTX83: {
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; PTX83-NEXT: .reg .b32 %r<3>;
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; PTX83-EMPTY:
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; PTX83-NEXT: // %bb.0:
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; PTX83-NEXT: ld.param::func.b32 %r1, [callee_param_0];
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; PTX83-NEXT: add.s32 %r2, %r1, 1;
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; PTX83-NEXT: st.param::func.b32 [func_retval0], %r2;
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; PTX83-NEXT: ret;
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%y = add i32 %x, 1
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ret i32 %y
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}
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define ptx_kernel void @kernel(i32 %x, ptr %out) {
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; PTX82-LABEL: kernel(
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; PTX82: {
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; PTX82-NEXT: .reg .b32 %r<3>;
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; PTX82-NEXT: .reg .b64 %rd<3>;
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; PTX82-EMPTY:
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; PTX82-NEXT: // %bb.0:
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; PTX82-NEXT: ld.param.b32 %r1, [kernel_param_0];
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; PTX82-NEXT: ld.param.b64 %rd1, [kernel_param_1];
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; PTX82-NEXT: cvta.to.global.u64 %rd2, %rd1;
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; PTX82-NEXT: { // callseq 0, 0
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; PTX82-NEXT: .param .b32 param0;
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; PTX82-NEXT: .param .b32 retval0;
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; PTX82-NEXT: st.param.b32 [param0], %r1;
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; PTX82-NEXT: call.uni (retval0), callee, (param0);
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; PTX82-NEXT: ld.param.b32 %r2, [retval0];
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; PTX82-NEXT: } // callseq 0
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; PTX82-NEXT: st.global.b32 [%rd2], %r2;
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; PTX82-NEXT: ret;
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;
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; PTX83-LABEL: kernel(
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; PTX83: {
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; PTX83-NEXT: .reg .b32 %r<3>;
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; PTX83-NEXT: .reg .b64 %rd<3>;
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; PTX83-EMPTY:
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; PTX83-NEXT: // %bb.0:
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; PTX83-NEXT: ld.param::entry.b32 %r1, [kernel_param_0];
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; PTX83-NEXT: ld.param::entry.b64 %rd1, [kernel_param_1];
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; PTX83-NEXT: cvta.to.global.u64 %rd2, %rd1;
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; PTX83-NEXT: { // callseq 0, 0
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; PTX83-NEXT: .param .b32 param0;
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; PTX83-NEXT: .param .b32 retval0;
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; PTX83-NEXT: st.param::func.b32 [param0], %r1;
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; PTX83-NEXT: call.uni (retval0), callee, (param0);
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; PTX83-NEXT: ld.param::func.b32 %r2, [retval0];
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; PTX83-NEXT: } // callseq 0
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; PTX83-NEXT: st.global.b32 [%rd2], %r2;
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; PTX83-NEXT: ret;
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%ret = call i32 @callee(i32 %x)
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store i32 %ret, ptr %out
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ret void
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}
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; A device function that loads through a ptr addrspace(101) (entry param ref
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; passed from a kernel). The ::entry subqualifier on the register-indirect
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; ld.param is required and older ptxas miscompiles this without it.
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define internal i32 @callee_entry_param(ptr addrspace(101) %p) noinline {
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; PTX82-LABEL: callee_entry_param(
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; PTX82: {
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; PTX82-NEXT: .reg .b32 %r<2>;
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; PTX82-NEXT: .reg .b64 %rd<2>;
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; PTX82-EMPTY:
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; PTX82-NEXT: // %bb.0:
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; PTX82-NEXT: ld.param.b64 %rd1, [callee_entry_param_param_0];
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; PTX82-NEXT: ld.param.b32 %r1, [%rd1];
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; PTX82-NEXT: st.param.b32 [func_retval0], %r1;
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; PTX82-NEXT: ret;
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;
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; PTX83-LABEL: callee_entry_param(
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; PTX83: {
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; PTX83-NEXT: .reg .b32 %r<2>;
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; PTX83-NEXT: .reg .b64 %rd<2>;
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; PTX83-EMPTY:
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; PTX83-NEXT: // %bb.0:
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; PTX83-NEXT: ld.param::func.b64 %rd1, [callee_entry_param_param_0];
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; PTX83-NEXT: ld.param::entry.b32 %r1, [%rd1];
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; PTX83-NEXT: st.param::func.b32 [func_retval0], %r1;
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; PTX83-NEXT: ret;
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%v = load i32, ptr addrspace(101) %p, align 4
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ret i32 %v
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}
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define ptx_kernel void @kernel_pass_param_ref(ptr byval(i32) align 4 "nvvm.grid_constant" %input, ptr %out) {
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; PTX82-LABEL: kernel_pass_param_ref(
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; PTX82: {
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; PTX82-NEXT: .reg .b32 %r<2>;
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; PTX82-NEXT: .reg .b64 %rd<4>;
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; PTX82-EMPTY:
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; PTX82-NEXT: // %bb.0:
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; PTX82-NEXT: mov.b64 %rd1, kernel_pass_param_ref_param_0;
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; PTX82-NEXT: ld.param.b64 %rd2, [kernel_pass_param_ref_param_1];
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; PTX82-NEXT: cvta.to.global.u64 %rd3, %rd2;
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; PTX82-NEXT: { // callseq 1, 0
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; PTX82-NEXT: .param .b64 param0;
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; PTX82-NEXT: .param .b32 retval0;
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; PTX82-NEXT: st.param.b64 [param0], %rd1;
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; PTX82-NEXT: call.uni (retval0), callee_entry_param, (param0);
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; PTX82-NEXT: ld.param.b32 %r1, [retval0];
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; PTX82-NEXT: } // callseq 1
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; PTX82-NEXT: st.global.b32 [%rd3], %r1;
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; PTX82-NEXT: ret;
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;
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; PTX83-LABEL: kernel_pass_param_ref(
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; PTX83: {
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; PTX83-NEXT: .reg .b32 %r<2>;
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; PTX83-NEXT: .reg .b64 %rd<4>;
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; PTX83-EMPTY:
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; PTX83-NEXT: // %bb.0:
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; PTX83-NEXT: mov.b64 %rd1, kernel_pass_param_ref_param_0;
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; PTX83-NEXT: ld.param::entry.b64 %rd2, [kernel_pass_param_ref_param_1];
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; PTX83-NEXT: cvta.to.global.u64 %rd3, %rd2;
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; PTX83-NEXT: { // callseq 1, 0
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; PTX83-NEXT: .param .b64 param0;
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; PTX83-NEXT: .param .b32 retval0;
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; PTX83-NEXT: st.param::func.b64 [param0], %rd1;
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; PTX83-NEXT: call.uni (retval0), callee_entry_param, (param0);
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; PTX83-NEXT: ld.param::func.b32 %r1, [retval0];
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; PTX83-NEXT: } // callseq 1
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; PTX83-NEXT: st.global.b32 [%rd3], %r1;
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; PTX83-NEXT: ret;
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%p = addrspacecast ptr %input to ptr addrspace(101)
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%ret = call i32 @callee_entry_param(ptr addrspace(101) %p)
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store i32 %ret, ptr %out
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ret void
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}
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