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llvm-mirror/test/CodeGen/R600/llvm.AMDGPU.rsq.clamped.f64.ll
Marek Olsak 63a18b6d87 R600/SI: Enable a lot of existing tests for VI (squashed commits)
This is a union of these commits:

* R600/SI: Enable more tests for VI which need no changes

* R600/SI: Enable V_BCNT tests for VI
    Differences:
    - v_bcnt_..._e32 -> _e64
    - s_load_dword* inline offset is in bytes instead of dwords

* R600/SI: Enable all tests for VI which use S_LOAD_DWORD
    The inline offset is changed from dwords to bytes.

* R600/SI: Enable LDS tests for VI
    Differences:
    - the s_load_dword inline offset changed from dwords to bytes
    - the tests checked very little on CI, so they have been fixed to check all
      instructions that "SI" checked

* R600/SI: Enable lshr tests for VI

* R600/SI: Fix divrem64 tests
    - "v_lshl_64" was missing "b" before "64"
    - added VI-NOT checks

* R600/SI: Enable the SI.tid test for VI

* R600/SI: Enable the frem test for VI
    Also, the frem_f64 checking is added for CI-VI.

* R600/SI: Add VI tests for rsq.clamped

llvm-svn: 228830
2015-02-11 14:26:46 +00:00

24 lines
1.0 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=FUNC %s
declare double @llvm.AMDGPU.rsq.clamped.f64(double) nounwind readnone
; FUNC-LABEL: {{^}}rsq_clamped_f64:
; SI: v_rsq_clamp_f64_e32
; VI: v_rsq_f64_e32 [[RSQ:v\[[0-9]+:[0-9]+\]]], s[2:3]
; TODO: this constant should be folded:
; VI: s_mov_b32 s[[ALLBITS:[0-9+]]], -1
; VI: s_mov_b32 s[[HIGH1:[0-9+]]], 0x7fefffff
; VI: s_mov_b32 s[[LOW1:[0-9+]]], s[[ALLBITS]]
; VI: v_min_f64 v[0:1], [[RSQ]], s{{\[}}[[LOW1]]:[[HIGH1]]]
; VI: s_mov_b32 s[[HIGH2:[0-9+]]], 0xffefffff
; VI: s_mov_b32 s[[LOW2:[0-9+]]], s[[ALLBITS]]
; VI: v_max_f64 v[0:1], v[0:1], s{{\[}}[[LOW2]]:[[HIGH2]]]
define void @rsq_clamped_f64(double addrspace(1)* %out, double %src) nounwind {
%rsq_clamped = call double @llvm.AMDGPU.rsq.clamped.f64(double %src) nounwind readnone
store double %rsq_clamped, double addrspace(1)* %out, align 8
ret void
}