Files
clang-p2996/llvm/test/CodeGen/AMDGPU/fmax3.f64.ll
Matt Arsenault 7aad8fd8f4 Enable FeatureFlatForGlobal on Volcanic Islands
This switches to the workaround that HSA defaults to
for the mesa path.

This should be applied to the 4.0 branch.

Patch by Vedran Miletić <vedran@miletic.net>

llvm-svn: 292982
2017-01-24 22:02:15 +00:00

25 lines
1.4 KiB
LLVM

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