25 lines
1.4 KiB
LLVM
25 lines
1.4 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
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declare double @llvm.maxnum.f64(double, double) nounwind readnone
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; SI-LABEL: {{^}}test_fmax3_f64:
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; SI-DAG: buffer_load_dwordx2 [[REGA:v\[[0-9]+:[0-9]+\]]], off, s[{{[0-9]+:[0-9]+}}], 0{{$}}
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; SI-DAG: buffer_load_dwordx2 [[REGB:v\[[0-9]+:[0-9]+\]]], off, s[{{[0-9]+:[0-9]+}}], 0 offset:8
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; SI-DAG: buffer_load_dwordx2 [[REGC:v\[[0-9]+:[0-9]+\]]], off, s[{{[0-9]+:[0-9]+}}], 0 offset:16
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; SI: v_max_f64 [[REGA]], [[REGA]], [[REGB]]
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; SI: v_max_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[REGA]], [[REGC]]
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; SI: buffer_store_dwordx2 [[RESULT]],
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; SI: s_endpgm
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define void @test_fmax3_f64(double addrspace(1)* %out, double addrspace(1)* %aptr) nounwind {
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%bptr = getelementptr double, double addrspace(1)* %aptr, i32 1
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%cptr = getelementptr double, double addrspace(1)* %aptr, i32 2
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%a = load volatile double, double addrspace(1)* %aptr, align 8
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%b = load volatile double, double addrspace(1)* %bptr, align 8
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%c = load volatile double, double addrspace(1)* %cptr, align 8
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%f0 = call double @llvm.maxnum.f64(double %a, double %b) nounwind readnone
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%f1 = call double @llvm.maxnum.f64(double %f0, double %c) nounwind readnone
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store double %f1, double addrspace(1)* %out, align 8
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ret void
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}
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