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llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/roundeven.ll
Venkata Ramanaiah Nalamothu 04fff547e2 [AMDGPU] Move call clobbered return address registers s[30:31] to callee saved range 
Currently the return address ABI registers s[30:31], which fall in the call
clobbered register range, are added as a live-in on the function entry to
preserve its value when we have calls so that it gets saved and restored
around the calls.

But the DWARF unwind information (CFI) needs to track where the return address
resides in a frame and the above approach makes it difficult to track the
return address when the CFI information is emitted during the frame lowering,
due to the involvment of understanding the control flow.

This patch moves the return address ABI registers s[30:31] into callee saved
registers range and stops adding live-in for return address registers, so that
the CFI machinery will know where the return address resides when CSR
save/restore happen during the frame lowering.

And doing the above poses an issue that now the return instruction uses undefined
register `sgpr30_sgpr31`. This is resolved by hiding the return address register
use by the return instruction through the `SI_RETURN` pseudo instruction, which
doesn't take any input operands, until the `SI_RETURN` pseudo gets lowered to the
`S_SETPC_B64_return` during the `expandPostRAPseudo()`.

As an added benefit, this patch simplifies overall return instruction handling.

Note: The AMDGPU CFI changes are there only in the downstream code and another
version of this patch will be posted for review for the downstream code.

Reviewed By: arsenm, ronlieb

Differential Revision: https://reviews.llvm.org/D114652
2022-03-09 12:18:02 +05:30

681 lines
25 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -global-isel -march=amdgcn -mcpu=tahiti < %s | FileCheck -check-prefix=GFX6 %s
; RUN: llc -global-isel -march=amdgcn -mcpu=hawaii < %s | FileCheck -check-prefix=GFX7 %s
; RUN: llc -global-isel -march=amdgcn -mcpu=fiji < %s | FileCheck -check-prefix=GFX8 %s
; RUN: llc -global-isel -march=amdgcn -mcpu=gfx900 < %s | FileCheck -check-prefix=GFX9 %s
; RUN: llc -global-isel -march=amdgcn -mcpu=gfx1010 < %s | FileCheck -check-prefix=GFX10 %s
define float @v_roundeven_f32(float %x) {
; GFX6-LABEL: v_roundeven_f32:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_f32:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_f32:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f32_e32 v0, v0
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_f32:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f32_e32 v0, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_f32:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f32_e32 v0, v0
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call float @llvm.roundeven.f32(float %x)
ret float %roundeven
}
define <2 x float> @v_roundeven_v2f32(<2 x float> %x) {
; GFX6-LABEL: v_roundeven_v2f32:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v1, v1
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v2f32:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v1, v1
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v2f32:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f32_e32 v0, v0
; GFX8-NEXT: v_rndne_f32_e32 v1, v1
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v2f32:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f32_e32 v0, v0
; GFX9-NEXT: v_rndne_f32_e32 v1, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v2f32:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f32_e32 v0, v0
; GFX10-NEXT: v_rndne_f32_e32 v1, v1
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call <2 x float> @llvm.roundeven.v2f32(<2 x float> %x)
ret <2 x float> %roundeven
}
define <3 x float> @v_roundeven_v3f32(<3 x float> %x) {
; GFX6-LABEL: v_roundeven_v3f32:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v1, v1
; GFX6-NEXT: v_rndne_f32_e32 v2, v2
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v3f32:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v1, v1
; GFX7-NEXT: v_rndne_f32_e32 v2, v2
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v3f32:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f32_e32 v0, v0
; GFX8-NEXT: v_rndne_f32_e32 v1, v1
; GFX8-NEXT: v_rndne_f32_e32 v2, v2
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v3f32:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f32_e32 v0, v0
; GFX9-NEXT: v_rndne_f32_e32 v1, v1
; GFX9-NEXT: v_rndne_f32_e32 v2, v2
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v3f32:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f32_e32 v0, v0
; GFX10-NEXT: v_rndne_f32_e32 v1, v1
; GFX10-NEXT: v_rndne_f32_e32 v2, v2
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call <3 x float> @llvm.roundeven.v3f32(<3 x float> %x)
ret <3 x float> %roundeven
}
define <4 x float> @v_roundeven_v4f32(<4 x float> %x) {
; GFX6-LABEL: v_roundeven_v4f32:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v1, v1
; GFX6-NEXT: v_rndne_f32_e32 v2, v2
; GFX6-NEXT: v_rndne_f32_e32 v3, v3
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v4f32:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v1, v1
; GFX7-NEXT: v_rndne_f32_e32 v2, v2
; GFX7-NEXT: v_rndne_f32_e32 v3, v3
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v4f32:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f32_e32 v0, v0
; GFX8-NEXT: v_rndne_f32_e32 v1, v1
; GFX8-NEXT: v_rndne_f32_e32 v2, v2
; GFX8-NEXT: v_rndne_f32_e32 v3, v3
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v4f32:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f32_e32 v0, v0
; GFX9-NEXT: v_rndne_f32_e32 v1, v1
; GFX9-NEXT: v_rndne_f32_e32 v2, v2
; GFX9-NEXT: v_rndne_f32_e32 v3, v3
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v4f32:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f32_e32 v0, v0
; GFX10-NEXT: v_rndne_f32_e32 v1, v1
; GFX10-NEXT: v_rndne_f32_e32 v2, v2
; GFX10-NEXT: v_rndne_f32_e32 v3, v3
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call <4 x float> @llvm.roundeven.v4f32(<4 x float> %x)
ret <4 x float> %roundeven
}
define half @v_roundeven_f16(half %x) {
; GFX6-LABEL: v_roundeven_f16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_cvt_f32_f16_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_f16:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_cvt_f32_f16_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_f16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f16_e32 v0, v0
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_f16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f16_e32 v0, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_f16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f16_e32 v0, v0
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call half @llvm.roundeven.f16(half %x)
ret half %roundeven
}
define <2 x half> @v_roundeven_v2f16(<2 x half> %x) {
; GFX6-LABEL: v_roundeven_v2f16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_cvt_f32_f16_e32 v0, v0
; GFX6-NEXT: v_cvt_f32_f16_e32 v1, v1
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v1, v1
; GFX6-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX6-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v2f16:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_cvt_f32_f16_e32 v0, v0
; GFX7-NEXT: v_cvt_f32_f16_e32 v1, v1
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v1, v1
; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v2f16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f16_e32 v1, v0
; GFX8-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX8-NEXT: v_mov_b32_e32 v2, 16
; GFX8-NEXT: v_lshlrev_b32_sdwa v0, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_0
; GFX8-NEXT: v_or_b32_sdwa v0, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v2f16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f16_e32 v1, v0
; GFX9-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX9-NEXT: v_mov_b32_e32 v2, 0xffff
; GFX9-NEXT: v_and_or_b32 v0, v1, v2, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v2f16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f16_e32 v1, v0
; GFX10-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX10-NEXT: v_and_or_b32 v0, 0xffff, v1, v0
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call <2 x half> @llvm.roundeven.v2f16(<2 x half> %x)
ret <2 x half> %roundeven
}
define <2 x half> @v_roundeven_v2f16_fneg(<2 x half> %x) {
; GFX6-LABEL: v_roundeven_v2f16_fneg:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_lshlrev_b32_e32 v1, 16, v1
; GFX6-NEXT: v_and_b32_e32 v0, 0xffff, v0
; GFX6-NEXT: v_or_b32_e32 v0, v1, v0
; GFX6-NEXT: v_xor_b32_e32 v0, 0x80008000, v0
; GFX6-NEXT: v_cvt_f32_f16_e32 v1, v0
; GFX6-NEXT: v_lshrrev_b32_e32 v0, 16, v0
; GFX6-NEXT: v_cvt_f32_f16_e32 v2, v0
; GFX6-NEXT: v_rndne_f32_e32 v0, v1
; GFX6-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v1, v2
; GFX6-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v2f16_fneg:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_lshlrev_b32_e32 v1, 16, v1
; GFX7-NEXT: v_and_b32_e32 v0, 0xffff, v0
; GFX7-NEXT: v_or_b32_e32 v0, v1, v0
; GFX7-NEXT: v_xor_b32_e32 v0, 0x80008000, v0
; GFX7-NEXT: v_cvt_f32_f16_e32 v1, v0
; GFX7-NEXT: v_lshrrev_b32_e32 v0, 16, v0
; GFX7-NEXT: v_cvt_f32_f16_e32 v2, v0
; GFX7-NEXT: v_rndne_f32_e32 v0, v1
; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v1, v2
; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v2f16_fneg:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_xor_b32_e32 v0, 0x80008000, v0
; GFX8-NEXT: v_rndne_f16_e32 v1, v0
; GFX8-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX8-NEXT: v_mov_b32_e32 v2, 16
; GFX8-NEXT: v_lshlrev_b32_sdwa v0, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_0
; GFX8-NEXT: v_or_b32_sdwa v0, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v2f16_fneg:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_xor_b32_e32 v0, 0x80008000, v0
; GFX9-NEXT: v_rndne_f16_e32 v1, v0
; GFX9-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX9-NEXT: v_mov_b32_e32 v2, 0xffff
; GFX9-NEXT: v_and_or_b32 v0, v1, v2, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v2f16_fneg:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_xor_b32_e32 v0, 0x80008000, v0
; GFX10-NEXT: v_rndne_f16_e32 v1, v0
; GFX10-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX10-NEXT: v_and_or_b32 v0, 0xffff, v1, v0
; GFX10-NEXT: s_setpc_b64 s[30:31]
%x.fneg = fneg <2 x half> %x
%roundeven = call <2 x half> @llvm.roundeven.v2f16(<2 x half> %x.fneg)
ret <2 x half> %roundeven
}
define <4 x half> @v_roundeven_v4f16(<4 x half> %x) {
; GFX6-LABEL: v_roundeven_v4f16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_cvt_f32_f16_e32 v0, v0
; GFX6-NEXT: v_cvt_f32_f16_e32 v1, v1
; GFX6-NEXT: v_cvt_f32_f16_e32 v2, v2
; GFX6-NEXT: v_cvt_f32_f16_e32 v3, v3
; GFX6-NEXT: v_rndne_f32_e32 v0, v0
; GFX6-NEXT: v_rndne_f32_e32 v1, v1
; GFX6-NEXT: v_rndne_f32_e32 v2, v2
; GFX6-NEXT: v_rndne_f32_e32 v3, v3
; GFX6-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX6-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX6-NEXT: v_cvt_f16_f32_e32 v2, v2
; GFX6-NEXT: v_cvt_f16_f32_e32 v3, v3
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v4f16:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_cvt_f32_f16_e32 v0, v0
; GFX7-NEXT: v_cvt_f32_f16_e32 v1, v1
; GFX7-NEXT: v_cvt_f32_f16_e32 v2, v2
; GFX7-NEXT: v_cvt_f32_f16_e32 v3, v3
; GFX7-NEXT: v_rndne_f32_e32 v0, v0
; GFX7-NEXT: v_rndne_f32_e32 v1, v1
; GFX7-NEXT: v_rndne_f32_e32 v2, v2
; GFX7-NEXT: v_rndne_f32_e32 v3, v3
; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v1
; GFX7-NEXT: v_cvt_f16_f32_e32 v2, v2
; GFX7-NEXT: v_cvt_f16_f32_e32 v3, v3
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v4f16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f16_e32 v2, v0
; GFX8-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX8-NEXT: v_rndne_f16_e32 v3, v1
; GFX8-NEXT: v_rndne_f16_sdwa v1, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX8-NEXT: v_mov_b32_e32 v4, 16
; GFX8-NEXT: v_lshlrev_b32_sdwa v0, v4, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_0
; GFX8-NEXT: v_lshlrev_b32_sdwa v1, v4, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_0
; GFX8-NEXT: v_or_b32_sdwa v0, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: v_or_b32_sdwa v1, v3, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v4f16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f16_e32 v2, v0
; GFX9-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX9-NEXT: v_rndne_f16_e32 v3, v1
; GFX9-NEXT: v_rndne_f16_sdwa v1, v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX9-NEXT: v_mov_b32_e32 v4, 0xffff
; GFX9-NEXT: v_and_or_b32 v0, v2, v4, v0
; GFX9-NEXT: v_and_or_b32 v1, v3, v4, v1
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v4f16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_mov_b32_e32 v2, 0xffff
; GFX10-NEXT: v_rndne_f16_e32 v3, v0
; GFX10-NEXT: v_rndne_f16_sdwa v0, v0 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX10-NEXT: v_rndne_f16_e32 v4, v1
; GFX10-NEXT: v_rndne_f16_sdwa v1, v1 dst_sel:WORD_1 dst_unused:UNUSED_PAD src0_sel:WORD_1
; GFX10-NEXT: v_and_or_b32 v0, v3, v2, v0
; GFX10-NEXT: v_and_or_b32 v1, v4, v2, v1
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call <4 x half> @llvm.roundeven.v4f16(<4 x half> %x)
ret <4 x half> %roundeven
}
define float @v_roundeven_f32_fabs(float %x) {
; GFX6-LABEL: v_roundeven_f32_fabs:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_rndne_f32_e64 v0, |v0|
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_f32_fabs:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f32_e64 v0, |v0|
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_f32_fabs:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f32_e64 v0, |v0|
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_f32_fabs:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f32_e64 v0, |v0|
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_f32_fabs:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f32_e64 v0, |v0|
; GFX10-NEXT: s_setpc_b64 s[30:31]
%fabs.x = call float @llvm.fabs.f32(float %x)
%roundeven = call float @llvm.roundeven.f32(float %fabs.x)
ret float %roundeven
}
define amdgpu_ps float @s_roundeven_f32(float inreg %x) {
; GFX6-LABEL: s_roundeven_f32:
; GFX6: ; %bb.0:
; GFX6-NEXT: v_rndne_f32_e32 v0, s0
; GFX6-NEXT: ; return to shader part epilog
;
; GFX7-LABEL: s_roundeven_f32:
; GFX7: ; %bb.0:
; GFX7-NEXT: v_rndne_f32_e32 v0, s0
; GFX7-NEXT: ; return to shader part epilog
;
; GFX8-LABEL: s_roundeven_f32:
; GFX8: ; %bb.0:
; GFX8-NEXT: v_rndne_f32_e32 v0, s0
; GFX8-NEXT: ; return to shader part epilog
;
; GFX9-LABEL: s_roundeven_f32:
; GFX9: ; %bb.0:
; GFX9-NEXT: v_rndne_f32_e32 v0, s0
; GFX9-NEXT: ; return to shader part epilog
;
; GFX10-LABEL: s_roundeven_f32:
; GFX10: ; %bb.0:
; GFX10-NEXT: v_rndne_f32_e32 v0, s0
; GFX10-NEXT: ; return to shader part epilog
%roundeven = call float @llvm.roundeven.f32(float %x)
ret float %roundeven
}
define float @v_roundeven_f32_fneg(float %x) {
; GFX6-LABEL: v_roundeven_f32_fneg:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_rndne_f32_e64 v0, -v0
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_f32_fneg:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f32_e64 v0, -v0
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_f32_fneg:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f32_e64 v0, -v0
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_f32_fneg:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f32_e64 v0, -v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_f32_fneg:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f32_e64 v0, -v0
; GFX10-NEXT: s_setpc_b64 s[30:31]
%neg.x = fneg float %x
%roundeven = call float @llvm.roundeven.f32(float %neg.x)
ret float %roundeven
}
define double @v_roundeven_f64(double %x) {
; GFX6-LABEL: v_roundeven_f64:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_and_b32_e32 v3, 0x80000000, v1
; GFX6-NEXT: v_mov_b32_e32 v2, 0
; GFX6-NEXT: v_or_b32_e32 v3, 0x43300000, v3
; GFX6-NEXT: v_add_f64 v[4:5], v[0:1], v[2:3]
; GFX6-NEXT: s_mov_b32 s4, -1
; GFX6-NEXT: s_mov_b32 s5, 0x432fffff
; GFX6-NEXT: v_add_f64 v[2:3], v[4:5], -v[2:3]
; GFX6-NEXT: v_cmp_gt_f64_e64 vcc, |v[0:1]|, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX6-NEXT: v_cndmask_b32_e32 v1, v3, v1, vcc
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_f64:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_f64:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_f64:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_f64:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call double @llvm.roundeven.f64(double %x)
ret double %roundeven
}
define double @v_roundeven_f64_fneg(double %x) {
; GFX6-LABEL: v_roundeven_f64_fneg:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_xor_b32_e32 v6, 0x80000000, v1
; GFX6-NEXT: v_and_b32_e32 v3, 0x80000000, v6
; GFX6-NEXT: v_mov_b32_e32 v2, 0
; GFX6-NEXT: v_or_b32_e32 v3, 0x43300000, v3
; GFX6-NEXT: v_add_f64 v[4:5], -v[0:1], v[2:3]
; GFX6-NEXT: s_mov_b32 s4, -1
; GFX6-NEXT: s_mov_b32 s5, 0x432fffff
; GFX6-NEXT: v_add_f64 v[2:3], v[4:5], -v[2:3]
; GFX6-NEXT: v_cmp_gt_f64_e64 vcc, |v[0:1]|, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX6-NEXT: v_cndmask_b32_e32 v1, v3, v6, vcc
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_f64_fneg:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f64_e64 v[0:1], -v[0:1]
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_f64_fneg:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f64_e64 v[0:1], -v[0:1]
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_f64_fneg:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f64_e64 v[0:1], -v[0:1]
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_f64_fneg:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f64_e64 v[0:1], -v[0:1]
; GFX10-NEXT: s_setpc_b64 s[30:31]
%neg.x = fneg double %x
%roundeven = call double @llvm.roundeven.f64(double %neg.x)
ret double %roundeven
}
define <2 x double> @v_roundeven_v2f64(<2 x double> %x) {
; GFX6-LABEL: v_roundeven_v2f64:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: s_brev_b32 s6, 1
; GFX6-NEXT: s_mov_b32 s7, 0x43300000
; GFX6-NEXT: v_and_b32_e32 v5, s6, v1
; GFX6-NEXT: v_mov_b32_e32 v4, 0
; GFX6-NEXT: v_or_b32_e32 v5, s7, v5
; GFX6-NEXT: v_add_f64 v[6:7], v[0:1], v[4:5]
; GFX6-NEXT: s_mov_b32 s4, -1
; GFX6-NEXT: s_mov_b32 s5, 0x432fffff
; GFX6-NEXT: v_add_f64 v[5:6], v[6:7], -v[4:5]
; GFX6-NEXT: v_cmp_gt_f64_e64 vcc, |v[0:1]|, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v0, v5, v0, vcc
; GFX6-NEXT: v_and_b32_e32 v5, s6, v3
; GFX6-NEXT: v_or_b32_e32 v5, s7, v5
; GFX6-NEXT: v_add_f64 v[7:8], v[2:3], v[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v1, v6, v1, vcc
; GFX6-NEXT: v_add_f64 v[4:5], v[7:8], -v[4:5]
; GFX6-NEXT: v_cmp_gt_f64_e64 vcc, |v[2:3]|, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v2, v4, v2, vcc
; GFX6-NEXT: v_cndmask_b32_e32 v3, v5, v3, vcc
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX7-LABEL: v_roundeven_v2f64:
; GFX7: ; %bb.0:
; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX7-NEXT: v_rndne_f64_e32 v[2:3], v[2:3]
; GFX7-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_roundeven_v2f64:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX8-NEXT: v_rndne_f64_e32 v[2:3], v[2:3]
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_roundeven_v2f64:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX9-NEXT: v_rndne_f64_e32 v[2:3], v[2:3]
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_roundeven_v2f64:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_rndne_f64_e32 v[0:1], v[0:1]
; GFX10-NEXT: v_rndne_f64_e32 v[2:3], v[2:3]
; GFX10-NEXT: s_setpc_b64 s[30:31]
%roundeven = call <2 x double> @llvm.roundeven.v2f64(<2 x double> %x)
ret <2 x double> %roundeven
}
declare half @llvm.roundeven.f16(half) #0
declare <2 x half> @llvm.roundeven.v2f16(<2 x half>) #0
declare <4 x half> @llvm.roundeven.v4f16(<4 x half>) #0
declare float @llvm.roundeven.f32(float) #0
declare <2 x float> @llvm.roundeven.v2f32(<2 x float>) #0
declare <3 x float> @llvm.roundeven.v3f32(<3 x float>) #0
declare <4 x float> @llvm.roundeven.v4f32(<4 x float>) #0
declare double @llvm.roundeven.f64(double) #0
declare <2 x double> @llvm.roundeven.v2f64(<2 x double>) #0
declare half @llvm.fabs.f16(half) #0
declare float @llvm.fabs.f32(float) #0
attributes #0 = { nounwind readnone speculatable willreturn }
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