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Imported Upstream version 5.18.0.167
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external/llvm/test/CodeGen/NVPTX/wmma.py
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external/llvm/test/CodeGen/NVPTX/wmma.py
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# This test generates all variants of wmma intrinsics and verifies that LLVM
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# generates correct instructions for them.
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# RUN: python %s > %t.ll
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# RUN: llc < %t.ll -march=nvptx64 -mcpu=sm_70 -mattr=+ptx60 | FileCheck %t.ll
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from itertools import product
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from string import Template
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def make_wmma_slice_ty(abcd, itype):
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elt_ty = "<2 x half>" if itype == "f16" else "float"
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num_elts = 4 if abcd in "cd" and itype == "f16" else 8;
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return [elt_ty] * num_elts
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def make_wmma_ld_ret_ty(abc, itype):
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return "{%s}" % ", ".join(make_wmma_slice_ty(abc, itype))
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# Convenient test patterns.
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check_f16_8 = "{{%s}}" % ", *".join(["%hh[0-9]+"] * 8)
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check_f16_4 = "{{%s}}" % ", *".join(["%hh[0-9]+"] * 4)
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check_f32_8 = "{{%s}}" % ", *".join(["%f[0-9]+"] * 8)
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def gen_wmma_load_tests():
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load_template = """
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declare ${ret_ty} @llvm.nvvm.wmma.load.$intrinsic_suffix(i8* %src ${extra_args});
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; CHECK-LABEL: .func {{.*}}test_wmma_load_${function_suffix}(
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define ${ret_ty} @test_wmma_load_${function_suffix}(i8* %src ${extra_args}) {
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; CHECK wmma.load.${intrinsic_suffix}
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; CHECK: {${check_result}}
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; CHECK: [%rd{{[0-9]+}}]${stride_pattern}
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%v0 = call ${ret_ty} @llvm.nvvm.wmma.load.${intrinsic_suffix}(i8* %src ${extra_args});
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ret ${ret_ty} %v0;
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}
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; CHECK-LABEL: .func{{.*}}test_wmma_load_${function_suffix}_o(
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define ${ret_ty} @test_wmma_load_${function_suffix}_o(i8* %src ${extra_args}) {
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; CHECK wmma.load.${intrinsic_suffix}
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; CHECK: {${check_result}}
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; CHECK: [%rd{{[0-9]+}}+128]${stride_pattern}
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%src1 = getelementptr i8, i8* %src, i32 128;
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%v0 = call ${ret_ty} @llvm.nvvm.wmma.load.${intrinsic_suffix}(i8* %src1 ${extra_args});
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ret ${ret_ty} %v0;
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}
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"""
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suffix_template = "${abc}.sync.${layout}.m16n16k16${space}${stride}.${itype}"
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instruction_template = "${abc}.sync.${layout}.m16n16k16${space}.${itype}"
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for abc, layout, space, stride, itype in product(
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"abc",
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["row","col"],
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["",".shared",".global"],
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["", ".stride"],
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["f16", "f32"]):
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params = {
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"abc" : abc,
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"layout" : layout,
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"space" : space,
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"stride" : stride,
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"itype" : itype
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}
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if itype == "f32" and abc != "c":
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continue
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test_params = params
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test_params["intrinsic_suffix"] = Template(suffix_template).substitute(params)
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test_params["function_suffix"] = test_params["intrinsic_suffix"].replace(".","_")
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test_params["instruction_suffix"] = Template(instruction_template).substitute(params)
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test_params["ret_ty"] = make_wmma_ld_ret_ty(abc, itype)
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if abc == "c" :
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test_params["check_result"] = check_f16_4 if itype == "f16" else check_f32_8
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else:
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test_params["check_result"] = check_f16_8
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if stride:
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test_params["extra_args"] = ", i32 %stride";
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test_params["stride_pattern"] = ", %r{{[0-9]+}}"
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else:
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test_params["extra_args"] = ""
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test_params["stride_pattern"] = ""
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print(Template(load_template).substitute(test_params))
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def make_wmma_slice_args(itype, abcd, prefix="v"):
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return ", ".join(["%s %%%s%d" % (t, prefix, i) for i,t
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in enumerate(make_wmma_slice_ty(abcd, itype))])
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def gen_wmma_store_tests():
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store_template = """
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declare void @llvm.nvvm.wmma.store.$intrinsic_suffix(i8* %src, ${args}${extra_args});
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; CHECK-LABEL: .func {{.*}}test_wmma_store_${function_suffix}(
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define void @test_wmma_store_${function_suffix}(i8* %src, ${args}${extra_args}) {
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; CHECK wmma.store.${intrinsic_suffix} {{.*}}[%rd{{[0-9+]}}
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; CHECK: {${check_args}}
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; CHECK: ${stride_pattern}
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call void @llvm.nvvm.wmma.store.${intrinsic_suffix}(i8* %src, ${args} ${extra_args});
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ret void
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}
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; CHECK-LABEL: .func{{.*}}test_wmma_store_${function_suffix}_o(
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define void @test_wmma_store_${function_suffix}_o(i8* %src, ${args}${extra_args}) {
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; CHECK wmma.store.${intrinsic_suffix} {{.*}}[%rd{{[0-9+]}}+128]
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; CHECK: ${check_args}
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; CHECK: ${stride_pattern}
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%src1 = getelementptr i8, i8* %src, i32 128;
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call void @llvm.nvvm.wmma.store.${intrinsic_suffix}(i8* %src1, ${args}${extra_args});
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ret void
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}
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"""
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suffix_template = "${abc}.sync.${layout}.m16n16k16${space}${stride}.${itype}"
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instruction_template = "${abc}.sync.${layout}.m16n16k16${space}.${itype}"
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for abc, layout, space, stride, itype in product(
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"d",
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["row","col"],
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["",".shared",".global"],
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["", ".stride"],
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["f16", "f32"]):
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params = {
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"abc" : abc,
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"layout" : layout,
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"space" : space,
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"stride" : stride,
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"itype" : itype
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}
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test_params = params
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test_params["intrinsic_suffix"] = Template(suffix_template).substitute(params)
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test_params["function_suffix"] = test_params["intrinsic_suffix"].replace(".","_")
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test_params["instruction_suffix"] = Template(instruction_template).substitute(params)
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test_params["ret_ty"] = make_wmma_ld_ret_ty(abc, itype)
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test_params["check_args"] = check_f16_4 if itype == "f16" else check_f32_8
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if stride:
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test_params["extra_args"] = ", i32 %stride";
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test_params["stride_pattern"] = ", %r{{[0-9]+}};"
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else:
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test_params["extra_args"] = ""
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test_params["stride_pattern"] = ";"
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test_params["args"] = make_wmma_slice_args(itype, "d");
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print(Template(store_template).substitute(test_params))
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def gen_wmma_mma_tests():
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mma_template = """
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declare ${ret_ty} @llvm.nvvm.wmma.mma.sync.$intrinsic_suffix(
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${args});
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; CHECK-LABEL: .func {{.*}}test_wmma_mma_${function_suffix}(
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define ${ret_ty} @test_wmma_mma_${function_suffix}(
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${args}) {
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; CHECK wmma.mma.${intrinsic_suffix} {{.*}}[%rd{{[0-9+]}}
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; CHECK ${check_d}
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; CHECK ${check_ab}
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; CHECK ${check_ab}
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; CHECK ${check_c}
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%r = call ${ret_ty} @llvm.nvvm.wmma.mma.sync.${intrinsic_suffix}(
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${args});
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ret ${ret_ty} %r;
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}
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"""
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suffix_template = "${alayout}.${blayout}.m16n16k16.${dtype}.${ctype}${satf}"
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for alayout, blayout, ctype, dtype, satf in product(
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["row","col"],
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["row","col"],
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["f16", "f32"],
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["f16", "f32"],
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[".satfinite", ""]):
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params = {
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"alayout" : alayout,
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"blayout" : blayout,
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"ctype" : ctype,
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"dtype" : dtype,
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"satf" : satf
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}
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test_params = params
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test_params["intrinsic_suffix"] = Template(suffix_template).substitute(params)
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test_params["function_suffix"] = test_params["intrinsic_suffix"].replace(".", "_")
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test_params["ret_ty"] = make_wmma_ld_ret_ty("d", dtype)
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test_params["check_ab"] = check_f16_8
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test_params["check_c"] = check_f16_4 if ctype == "f16" else check_f32_8
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test_params["check_d"] = check_f16_4 if dtype == "f16" else check_f32_8
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args = ",\n ".join(make_wmma_slice_args(t, abcd, prefix=abcd)
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for abcd, t in (("a", "f16"),
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("b", "f16"),
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("c", ctype)))
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test_params["args"] = args
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print(Template(mma_template).substitute(test_params))
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def main():
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gen_wmma_load_tests()
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gen_wmma_store_tests()
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gen_wmma_mma_tests()
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main()
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