ff53086924
Add a new constraint corresponding to the AV_* register classes for operands which can allocate AGPRs or VGPRs. This applies to load and stores on gfx90a+, and srcA / srcB for MFMA instructions. The error emitted on unsupported targets isn't ideal, it is produced by the register allocator without a rationale, but it is consistent with the existing errors. I mostly want this for writing allocation tests.
218 lines
6.8 KiB
LLVM
218 lines
6.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: not llc -mtriple=amdgcn -mcpu=gfx908 -filetype=null %s 2>&1 | FileCheck -check-prefix=ERR %s
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; RUN: llc -mtriple=amdgcn -mcpu=gfx90a < %s | FileCheck %s
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; FIXME: Shouldn't emit and
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_i16(i16 %x) {
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; CHECK-LABEL: use_A_i16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: v_and_b32_e32 v0, 0xffff, v0
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(i16 %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_f16(half %x) {
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; CHECK-LABEL: use_A_f16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(half %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_bf16(bfloat %x) {
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; CHECK-LABEL: use_A_bf16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(bfloat %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_v2i16(<2 x i16> %x) {
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; CHECK-LABEL: use_A_v2i16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(<2 x i16> %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_v2f16(<2 x half> %x) {
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; CHECK-LABEL: use_A_v2f16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(<2 x half> %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_v2bf16(<2 x bfloat> %x) {
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; CHECK-LABEL: use_A_v2bf16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(<2 x bfloat> %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_i32(i32 %x) {
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; CHECK-LABEL: use_A_i32:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(i32 %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_f32(float %x) {
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; CHECK-LABEL: use_A_f32:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(float %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_i64(i64 %x) {
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; CHECK-LABEL: use_A_i64:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v[0:1]
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(i64 %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_f64(double %x) {
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; CHECK-LABEL: use_A_f64:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v[0:1]
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(double %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_p1(ptr addrspace(1) %x) {
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; CHECK-LABEL: use_A_p1:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v[0:1]
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(ptr addrspace(1) %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_v32i32(<32 x i32> %x) {
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; CHECK-LABEL: use_A_v32i32:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: buffer_load_dword v31, off, s[0:3], s32
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; CHECK-NEXT: s_waitcnt vmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v[0:31]
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(<32 x i32> %x)
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ret void
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}
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; ERR: error: couldn't allocate input reg for constraint 'VA'
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define void @use_A_v32f32(<32 x float> %x) {
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; CHECK-LABEL: use_A_v32f32:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: buffer_load_dword v31, off, s[0:3], s32
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; CHECK-NEXT: s_waitcnt vmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; use v[0:31]
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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call void asm sideeffect "; use $0", "^VA"(<32 x float> %x)
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ret void
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}
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; ERR: error: couldn't allocate output register for constraint 'VA'
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define i16 @def_A_i16() {
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; CHECK-LABEL: def_A_i16:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; def v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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%ret = call i16 asm sideeffect "; def $0", "=^VA"()
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ret i16 %ret
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}
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; ERR: error: couldn't allocate output register for constraint 'VA'
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define i32 @def_A_i32() {
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; CHECK-LABEL: def_A_i32:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; def v0
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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%ret = call i32 asm sideeffect "; def $0", "=^VA"()
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ret i32 %ret
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}
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; ERR: error: couldn't allocate output register for constraint 'VA'
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define ptr addrspace(1) @def_A_p1() {
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; CHECK-LABEL: def_A_p1:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
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; CHECK-NEXT: ;;#ASMSTART
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; CHECK-NEXT: ; def v[0:1]
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; CHECK-NEXT: ;;#ASMEND
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; CHECK-NEXT: s_setpc_b64 s[30:31]
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%ret = call ptr addrspace(1) asm sideeffect "; def $0", "=^VA"()
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ret ptr addrspace(1) %ret
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}
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