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[AMDGPU] Baseline test for ptrtoaddr in lower-buffer-fat-pointers #143812

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Merged
merged 4 commits into from
Aug 9, 2025
Merged

[AMDGPU] Baseline test for ptrtoaddr in lower-buffer-fat-pointers #143812

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1ebb635
[𝘀𝗽𝗿] changes to main this commit is based on
arichardson Jun 11, 2025
cd7d8bb
[𝘀𝗽𝗿] initial version
arichardson Jun 11, 2025
10a230c
[𝘀𝗽𝗿] changes introduced through rebase
arichardson Aug 8, 2025
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arichardson Aug 8, 2025
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55 changes: 53 additions & 2 deletions llvm/test/CodeGen/AMDGPU/lower-buffer-fat-pointers-pointer-ops.ll
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -S -mcpu=gfx900 -amdgpu-lower-buffer-fat-pointers < %s | FileCheck %s
; RUN: opt -S -mcpu=gfx900 -passes=amdgpu-lower-buffer-fat-pointers < %s | FileCheck %s
; FIXME: Currently generates invalid IR for ptrtoaddr
; RUN: opt -S -mcpu=gfx900 -amdgpu-lower-buffer-fat-pointers -disable-verify < %s | FileCheck %s
; RUN: opt -S -mcpu=gfx900 -passes=amdgpu-lower-buffer-fat-pointers -disable-verify < %s | FileCheck %s

target triple = "amdgcn--"

Expand Down Expand Up @@ -255,6 +256,56 @@ define i32 @ptrtoint_offset(ptr addrspace(7) %ptr) {
ret i32 %ret
}

;; FIXME: this currently generates invalid IR
define i32 @ptrtoaddr(ptr addrspace(7) %ptr) {
; CHECK-LABEL: define i32 @ptrtoaddr
; CHECK-SAME: ({ ptr addrspace(8), i32 } [[PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[RET:%.*]] = ptrtoaddr { ptr addrspace(8), i32 } [[PTR]] to i32
; CHECK-NEXT: ret i32 [[RET]]
;
%ret = ptrtoaddr ptr addrspace(7) %ptr to i32
ret i32 %ret
}

;; FIXME: this currently generates invalid IR
define <2 x i32> @ptrtoaddr_vec(<2 x ptr addrspace(7)> %ptr) {
; CHECK-LABEL: define <2 x i32> @ptrtoaddr_vec
; CHECK-SAME: ({ <2 x ptr addrspace(8)>, <2 x i32> } [[PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[RET:%.*]] = ptrtoaddr { <2 x ptr addrspace(8)>, <2 x i32> } [[PTR]] to <2 x i32>
; CHECK-NEXT: ret <2 x i32> [[RET]]
;
%ret = ptrtoaddr <2 x ptr addrspace(7)> %ptr to <2 x i32>
ret <2 x i32> %ret
}

;; Check that we extend the offset to i160.
;; FIXME: this currently generates invalid IR
define i160 @ptrtoaddr_ext(ptr addrspace(7) %ptr) {
; CHECK-LABEL: define i160 @ptrtoaddr_ext
; CHECK-SAME: ({ ptr addrspace(8), i32 } [[PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ADDR:%.*]] = ptrtoaddr { ptr addrspace(8), i32 } [[PTR]] to i32
; CHECK-NEXT: [[EXT:%.*]] = zext i32 [[ADDR]] to i160
; CHECK-NEXT: ret i160 [[EXT]]
;
%addr = ptrtoaddr ptr addrspace(7) %ptr to i32
%ext = zext i32 %addr to i160
ret i160 %ext
}

;; FIXME: this currently generates invalid IR
;; Check that we truncate the offset to i16.
define i16 @ptrtoaddr_trunc(ptr addrspace(7) %ptr) {
; CHECK-LABEL: define i16 @ptrtoaddr_trunc
; CHECK-SAME: ({ ptr addrspace(8), i32 } [[PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ADDR:%.*]] = ptrtoaddr { ptr addrspace(8), i32 } [[PTR]] to i32
; CHECK-NEXT: [[TRUNC:%.*]] = trunc i32 [[ADDR]] to i16
; CHECK-NEXT: ret i16 [[TRUNC]]
;
%addr = ptrtoaddr ptr addrspace(7) %ptr to i32
%trunc = trunc i32 %addr to i16
ret i16 %trunc
}

define ptr addrspace(7) @inttoptr(i160 %v) {
; CHECK-LABEL: define { ptr addrspace(8), i32 } @inttoptr
; CHECK-SAME: (i160 [[V:%.*]]) #[[ATTR0]] {
Expand Down
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