carryout-selection.ll
14.1 KB
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; RUN: llc -march=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN-ISEL %s
; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CISI %s
; RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI %s
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s
; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX1010 %s
; GCN-ISEL-LABEL: name: sadd64rr
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: S_ADD_U64_PSEUDO
; GCN-LABEL: @sadd64rr
; GCN: s_add_u32
; GCN: s_addc_u32
define amdgpu_kernel void @sadd64rr(i64 addrspace(1)* %out, i64 %a, i64 %b) {
entry:
%add = add i64 %a, %b
store i64 %add, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: sadd64ri
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: S_ADD_U64_PSEUDO
; GCN-LABEL: @sadd64ri
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, 0x56789876
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, 0x1234
define amdgpu_kernel void @sadd64ri(i64 addrspace(1)* %out, i64 %a) {
entry:
%add = add i64 20015998343286, %a
store i64 %add, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: vadd64rr
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: V_ADD_U64_PSEUDO
; GCN-LABEL: @vadd64rr
;
; CISI: v_add_i32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; CISI: v_addc_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; VI: v_add_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; VI: v_addc_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX9: v_add_co_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX1010: v_add_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], s{{[0-9]+}}, v{{[0-9]+}}
; GFX1010: v_add_co_ci_u32_e64 v{{[0-9]+}}, [[CARRY]], s{{[0-9]+}}, 0, [[CARRY]]
define amdgpu_kernel void @vadd64rr(i64 addrspace(1)* %out, i64 %a) {
entry:
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%tid.ext = sext i32 %tid to i64
%add = add i64 %a, %tid.ext
store i64 %add, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: vadd64ri
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: V_ADD_U64_PSEUDO
; GCN-LABEL: @vadd64ri
;
; CISI: v_add_i32_e32 v0, vcc, 0x56789876, v0
; CISI: v_mov_b32_e32 v1, 0x1234
; CISI: v_addc_u32_e32 v1, vcc, 0, v1, vcc
;
; VI: v_add_u32_e32 v0, vcc, 0x56789876, v0
; VI: v_mov_b32_e32 v1, 0x1234
; VI: v_addc_u32_e32 v1, vcc, 0, v1, vcc
;
; GFX9: v_add_co_u32_e32 v0, vcc, 0x56789876, v0
; GFX9: v_mov_b32_e32 v1, 0x1234
; GFX9: v_addc_co_u32_e32 v1, vcc, 0, v1, vcc
;
; GFX1010: v_add_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], 0x56789876, v{{[0-9]+}}
; GFX1010: v_add_co_ci_u32_e64 v{{[0-9]+}}, [[CARRY]], 0, 0x1234, [[CARRY]]
define amdgpu_kernel void @vadd64ri(i64 addrspace(1)* %out) {
entry:
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%tid.ext = sext i32 %tid to i64
%add = add i64 20015998343286, %tid.ext
store i64 %add, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: suaddo32
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: S_ADD_I32
define amdgpu_kernel void @suaddo32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) #0 {
%uadd = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
%val = extractvalue { i32, i1 } %uadd, 0
%carry = extractvalue { i32, i1 } %uadd, 1
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; GCN-ISEL-LABEL: name: uaddo32_vcc_user
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: V_ADD_CO_U32_e64
; below we check selection to v_add/addc
; because the only user of VCC produced by the UADDOis v_cndmask.
; We select to VALU form to avoid unnecessary s_cselect to copy SCC to VCC
; GCN-LABEL: @uaddo32_vcc_user
;
; CISI: v_add_i32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; CISI: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, vcc
;
; VI: v_add_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; VI: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, vcc
;
; GFX9: v_add_co_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; GFX9: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, vcc
;
; GFX1010: v_add_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], s{{[0-9]+}}, s{{[0-9]+}}
; GFX1010: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, [[CARRY]]
define amdgpu_kernel void @uaddo32_vcc_user(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) #0 {
%uadd = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
%val = extractvalue { i32, i1 } %uadd, 0
%carry = extractvalue { i32, i1 } %uadd, 1
store i32 %val, i32 addrspace(1)* %out, align 4
store i1 %carry, i1 addrspace(1)* %carryout
ret void
}
; GCN-ISEL-LABEL: name: suaddo64
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: S_ADD_U64_PSEUDO
; GCN-LABEL: @suaddo64
;
; GCN: s_add_u32
; GCN: s_addc_u32
define amdgpu_kernel void @suaddo64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a, i64 %b) #0 {
%uadd = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %a, i64 %b)
%val = extractvalue { i64, i1 } %uadd, 0
%carry = extractvalue { i64, i1 } %uadd, 1
store i64 %val, i64 addrspace(1)* %out, align 8
store i1 %carry, i1 addrspace(1)* %carryout
ret void
}
; GCN-ISEL-LABEL: name: vuaddo64
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: V_ADD_U64_PSEUDO
; GCN-LABEL: @vuaddo64
;
; CISI: v_add_i32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v0
; CISI: v_addc_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; VI: v_add_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v0
; VI: v_addc_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX9: v_add_co_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v0
; GFX9: v_addc_co_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX1010: v_add_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], s{{[0-9]+}}, v0
; GFX1010: v_add_co_ci_u32_e64 v{{[0-9]+}}, [[CARRY]], s{{[0-9]+}}, 0, [[CARRY]]
define amdgpu_kernel void @vuaddo64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a) #0 {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%tid.ext = sext i32 %tid to i64
%uadd = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %a, i64 %tid.ext)
%val = extractvalue { i64, i1 } %uadd, 0
%carry = extractvalue { i64, i1 } %uadd, 1
store i64 %val, i64 addrspace(1)* %out, align 8
store i1 %carry, i1 addrspace(1)* %carryout
ret void
}
; RUN: llc -march=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN-ISEL %s
; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,CISI %s
; RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI %s
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s
; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX1010 %s
; GCN-ISEL-LABEL: name: ssub64rr
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: S_SUB_U64_PSEUDO
; GCN-LABEL: @ssub64rr
; GCN: s_sub_u32
; GCN: s_subb_u32
define amdgpu_kernel void @ssub64rr(i64 addrspace(1)* %out, i64 %a, i64 %b) {
entry:
%sub = sub i64 %a, %b
store i64 %sub, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: ssub64ri
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: S_SUB_U64_PSEUDO
; GCN-LABEL: @ssub64ri
; GCN: s_sub_u32 s{{[0-9]+}}, 0x56789876, s{{[0-9]+}}
; GCN: s_subb_u32 s{{[0-9]+}}, 0x1234, s{{[0-9]+}}
define amdgpu_kernel void @ssub64ri(i64 addrspace(1)* %out, i64 %a) {
entry:
%sub = sub i64 20015998343286, %a
store i64 %sub, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: vsub64rr
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: V_SUB_U64_PSEUDO
; GCN-LABEL: @vsub64rr
;
; CISI: v_sub_i32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; CISI: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; VI: v_sub_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; VI: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX9: v_sub_co_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; GFX9: v_subbrev_co_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX1010: v_sub_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], s{{[0-9]+}}, v{{[0-9]+}}
; GFX1010: v_sub_co_ci_u32_e64 v{{[0-9]+}}, [[CARRY]], s{{[0-9]+}}, 0, [[CARRY]]
define amdgpu_kernel void @vsub64rr(i64 addrspace(1)* %out, i64 %a) {
entry:
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%tid.ext = sext i32 %tid to i64
%sub = sub i64 %a, %tid.ext
store i64 %sub, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: vsub64ri
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0.entry:
; GCN-ISEL: V_SUB_U64_PSEUDO
; GCN-LABEL: @vsub64ri
;
; CISI: v_sub_i32_e32 v0, vcc, 0x56789876, v0
; CISI: v_mov_b32_e32 v1, 0x1234
; CISI: v_subbrev_u32_e32 v1, vcc, 0, v1, vcc
;
; VI: v_sub_u32_e32 v0, vcc, 0x56789876, v0
; VI: v_mov_b32_e32 v1, 0x1234
; VI: v_subbrev_u32_e32 v1, vcc, 0, v1, vcc
;
; GFX9: v_sub_co_u32_e32 v0, vcc, 0x56789876, v0
; GFX9: v_mov_b32_e32 v1, 0x1234
; GFX9: v_subbrev_co_u32_e32 v1, vcc, 0, v1, vcc
;
; GFX1010: v_sub_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], 0x56789876, v{{[0-9]+}}
; GFX1010: v_sub_co_ci_u32_e64 v{{[0-9]+}}, [[CARRY]], 0x1234, 0, [[CARRY]]
define amdgpu_kernel void @vsub64ri(i64 addrspace(1)* %out) {
entry:
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%tid.ext = sext i32 %tid to i64
%sub = sub i64 20015998343286, %tid.ext
store i64 %sub, i64 addrspace(1)* %out
ret void
}
; GCN-ISEL-LABEL: name: susubo32
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: S_SUB_I32
define amdgpu_kernel void @susubo32(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) #0 {
%usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b)
%val = extractvalue { i32, i1 } %usub, 0
%carry = extractvalue { i32, i1 } %usub, 1
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; GCN-ISEL-LABEL: name: usubo32_vcc_user
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: V_SUB_CO_U32_e64
; below we check selection to v_sub/subb
; because the only user of VCC produced by the USUBOis v_cndmask.
; We select to VALU form to avoid unnecessary s_cselect to copy SCC to VCC
; GCN-LABEL: @usubo32_vcc_user
;
; CISI: v_sub_i32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; CISI: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, vcc
;
; VI: v_sub_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; VI: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, vcc
;
; GFX9: v_sub_co_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v{{[0-9]+}}
; GFX9: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, vcc
;
; GFX1010: v_sub_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], s{{[0-9]+}}, s{{[0-9]+}}
; GFX1010: v_cndmask_b32_e64 v{{[0-9]+}}, 0, 1, [[CARRY]]
define amdgpu_kernel void @usubo32_vcc_user(i32 addrspace(1)* %out, i1 addrspace(1)* %carryout, i32 %a, i32 %b) #0 {
%usub = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b)
%val = extractvalue { i32, i1 } %usub, 0
%carry = extractvalue { i32, i1 } %usub, 1
store i32 %val, i32 addrspace(1)* %out, align 4
store i1 %carry, i1 addrspace(1)* %carryout
ret void
}
; GCN-ISEL-LABEL: name: susubo64
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: S_SUB_U64_PSEUDO
; GCN-LABEL: @susubo64
;
; GCN: s_sub_u32
; GCN: s_subb_u32
define amdgpu_kernel void @susubo64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a, i64 %b) #0 {
%usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %b)
%val = extractvalue { i64, i1 } %usub, 0
%carry = extractvalue { i64, i1 } %usub, 1
store i64 %val, i64 addrspace(1)* %out, align 8
store i1 %carry, i1 addrspace(1)* %carryout
ret void
}
; GCN-ISEL-LABEL: name: vusubo64
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.0
; GCN-ISEL: V_SUB_U64_PSEUDO
; GCN-LABEL: @vusubo64
;
; CISI: v_sub_i32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v0
; CISI: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; VI: v_sub_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v0
; VI: v_subbrev_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX9: v_sub_co_u32_e32 v{{[0-9]+}}, vcc, s{{[0-9]+}}, v0
; GFX9: v_subbrev_co_u32_e32 v{{[0-9]+}}, vcc, 0, v{{[0-9]+}}, vcc
;
; GFX1010: v_sub_co_u32_e64 v{{[0-9]+}}, [[CARRY:s[0-9]+]], s{{[0-9]+}}, v0
; GFX1010: v_sub_co_ci_u32_e64 v{{[0-9]+}}, [[CARRY]], s{{[0-9]+}}, 0, [[CARRY]]
define amdgpu_kernel void @vusubo64(i64 addrspace(1)* %out, i1 addrspace(1)* %carryout, i64 %a) #0 {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%tid.ext = sext i32 %tid to i64
%usub = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 %a, i64 %tid.ext)
%val = extractvalue { i64, i1 } %usub, 0
%carry = extractvalue { i64, i1 } %usub, 1
store i64 %val, i64 addrspace(1)* %out, align 8
store i1 %carry, i1 addrspace(1)* %carryout
ret void
}
; GCN-ISEL-LABEL: name: sudiv64
; GCN-ISEL-LABEL: body:
; GCN-ISEL-LABEL: bb.3
; GCN-ISEL: %[[CARRY:[0-9]+]]:sreg_64_xexec = V_ADD_CO_U32_e64
; GCN-ISEL: S_ADD_CO_PSEUDO %{{[0-9]+}}, %{{[0-9]+}}, %[[CARRY]]
; GCN-ISEL: %[[CARRY:[0-9]+]]:sreg_64_xexec = V_SUB_CO_U32_e64
; GCN-ISEL: S_SUB_CO_PSEUDO %{{[0-9]+}}, %{{[0-9]+}}, %[[CARRY]]
define amdgpu_kernel void @sudiv64(i64 addrspace(1)* %out, i64 %x, i64 %y) {
%result = udiv i64 %x, %y
store i64 %result, i64 addrspace(1)* %out
ret void
}
declare { i64, i1 } @llvm.uadd.with.overflow.i64(i64, i64) #1
declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) #1
declare { i64, i1 } @llvm.usub.with.overflow.i64(i64, i64) #1
declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) #1
declare i32 @llvm.amdgcn.workitem.id.x() #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }