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llvm-project/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.ptr.buffer.atomic.fadd_rtn_errors.ll
David Green 5a81a559d6
[GISel] Explicitly disable BF16 tablegen patterns. (#124113) 
We currently have an issue where bf16 patters can be used to match fp16
types, as GISel does not know about the difference between the two. This
patch explicitly disables them to make sure that they are never used.

The opposite can also happen too, where fp16 patterns are used for
operators that should be bf16. So this also changes any operations with
bf16 types to now cause a fallback to SDAG.

The pass setup for GISel has been slightly adjusted to make sure that a
verify pass does not get added between AMD-SDAG and SIFixSGPRCopiesPass,
which otherwise can cause verifier issues when falling back.
2025-01-27 22:21:12 +00:00

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; RUN: split-file %s %t
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/raw-ret-f32-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-F32-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/struct-ret-f32-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-F32-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/raw-ret-v2f16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2F16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/struct-ret-v2f16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2F16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/raw-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2BF16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/struct-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2BF16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -filetype=null %t/raw-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2BF16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -filetype=null %t/struct-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2BF16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx940 -filetype=null %t/raw-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2BF16-SDAG %s
; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx940 -filetype=null %t/struct-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2BF16-SDAG %s
; RUN: not --crash llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/raw-ret-f32-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-F32-GISEL %s
; RUN: not --crash llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/struct-ret-f32-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-F32-GISEL %s
; RUN: not --crash llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/raw-ret-v2f16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2F16-GISEL %s
; RUN: not --crash llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/struct-ret-v2f16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2F16-GISEL %s
; RUN: not --crash llc -global-isel=1 -global-isel-abort=2 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/raw-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2BF16-GISEL %s
; RUN: not --crash llc -global-isel=1 -global-isel-abort=2 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -filetype=null %t/struct-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2BF16-GISEL %s
; RUN: not --crash llc -global-isel=1 -global-isel-abort=2 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -filetype=null %t/raw-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2BF16-GISEL %s
; RUN: not --crash llc -global-isel=1 -global-isel-abort=2 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a -filetype=null %t/struct-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2BF16-GISEL %s
; RUN: not --crash llc -global-isel=1 -global-isel-abort=2 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx940 -filetype=null %t/raw-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-RAW-V2BF16-GISEL %s
; RUN: not --crash llc -global-isel=1 -global-isel-abort=2 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx940 -filetype=null %t/struct-ret-v2bf16-error.ll 2>&1 | FileCheck -check-prefix=ERR-STRUCT-V2BF16-GISEL %s
; Make sure buffer fadd atomics with return values are not selected
; for gfx908 where they do not work.
; Check bf16 buffer fadd does not select on supported subtargets.
;--- raw-ret-f32-error.ll
; ERR-RAW-F32-SDAG: LLVM ERROR: Cannot select: {{.+}}: f32,ch = BUFFER_ATOMIC_FADD
; ERR-RAW-F32-GISEL: LLVM ERROR: cannot select: %{{[0-9]+}}:vgpr_32(s32) = G_AMDGPU_BUFFER_ATOMIC_FADD
define float @raw_ptr_buffer_atomic_fadd_f32_rtn(float %val, <4 x i32> inreg %rsrc, i32 inreg %soffset) {
%ret = call float @llvm.amdgcn.raw.buffer.atomic.fadd.f32(float %val, <4 x i32> %rsrc, i32 0, i32 %soffset, i32 0)
ret float %ret
}
;--- struct-ret-f32-error.ll
; ERR-STRUCT-F32-SDAG: LLVM ERROR: Cannot select: {{.+}}: f32,ch = BUFFER_ATOMIC_FADD
; ERR-STRUCT-F32-GISEL: LLVM ERROR: cannot select: %{{[0-9]+}}:vgpr_32(s32) = G_AMDGPU_BUFFER_ATOMIC_FADD
define float @struct_ptr_buffer_atomic_fadd_f32_rtn(float %val, ptr addrspace(8) inreg %rsrc, i32 %vindex, i32 %voffset, i32 inreg %soffset) {
%ret = call float @llvm.amdgcn.struct.ptr.buffer.atomic.fadd.f32(float %val, ptr addrspace(8) %rsrc, i32 %vindex, i32 %voffset, i32 %soffset, i32 0)
ret float %ret
}
;--- raw-ret-v2f16-error.ll
; ERR-RAW-V2F16-SDAG: LLVM ERROR: Cannot select: {{.+}}: v2f16,ch = BUFFER_ATOMIC_FADD
; ERR-RAW-V2F16-GISEL: LLVM ERROR: cannot select: %{{[0-9]+}}:vgpr_32(<2 x s16>) = G_AMDGPU_BUFFER_ATOMIC_FADD
define <2 x half> @raw_ptr_buffer_atomic_fadd_v2f16_rtn(<2 x half> %val, <4 x i32> inreg %rsrc, i32 inreg %soffset) {
%ret = call <2 x half> @llvm.amdgcn.raw.buffer.atomic.fadd.v2f16(<2 x half> %val, <4 x i32> %rsrc, i32 0, i32 %soffset, i32 0)
ret <2 x half> %ret
}
;--- struct-ret-v2f16-error.ll
; ERR-STRUCT-V2F16-SDAG: LLVM ERROR: Cannot select: {{.+}}: v2f16,ch = BUFFER_ATOMIC_FADD
; ERR-STRUCT-V2F16-GISEL: LLVM ERROR: cannot select: %{{[0-9]+}}:vgpr_32(<2 x s16>) = G_AMDGPU_BUFFER_ATOMIC_FADD
define <2 x half> @struct_ptr_buffer_atomic_fadd_v2f16_rtn(<2 x half> %val, ptr addrspace(8) inreg %rsrc, i32 %vindex, i32 %voffset, i32 inreg %soffset) {
%ret = call <2 x half> @llvm.amdgcn.struct.ptr.buffer.atomic.fadd.v2f16(<2 x half> %val, ptr addrspace(8) %rsrc, i32 %vindex, i32 %voffset, i32 %soffset, i32 0)
ret <2 x half> %ret
}
;--- raw-ret-v2bf16-error.ll
; ERR-RAW-V2BF16-SDAG: LLVM ERROR: Cannot select: {{.+}}: v2bf16,ch = BUFFER_ATOMIC_FADD
; ERR-RAW-V2BF16-GISEL: LLVM ERROR: Cannot select: {{.+}}: v2bf16,ch = BUFFER_ATOMIC_FADD
define <2 x bfloat> @raw_ptr_buffer_atomic_fadd_v2bf16_rtn(<2 x bfloat> %val, <4 x i32> inreg %rsrc, i32 inreg %soffset) {
%ret = call <2 x bfloat> @llvm.amdgcn.raw.buffer.atomic.fadd.v2bf16(<2 x bfloat> %val, <4 x i32> %rsrc, i32 0, i32 %soffset, i32 0)
ret <2 x bfloat> %ret
}
;--- struct-ret-v2bf16-error.ll
; ERR-STRUCT-V2BF16-SDAG: LLVM ERROR: Cannot select: {{.+}}: v2bf16,ch = BUFFER_ATOMIC_FADD
; ERR-STRUCT-V2BF16-GISEL: LLVM ERROR: Cannot select: {{.+}}: v2bf16,ch = BUFFER_ATOMIC_FADD
define <2 x bfloat> @struct_ptr_buffer_atomic_fadd_v2bf16_rtn(<2 x bfloat> %val, ptr addrspace(8) inreg %rsrc, i32 %vindex, i32 %voffset, i32 inreg %soffset) {
%ret = call <2 x bfloat> @llvm.amdgcn.struct.ptr.buffer.atomic.fadd.v2bf16(<2 x bfloat> %val, ptr addrspace(8) %rsrc, i32 %vindex, i32 %voffset, i32 %soffset, i32 0)
ret <2 x bfloat> %ret
}
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