llvm-project/llvm/test/CodeGen/AMDGPU/uniform-work-group-nested-function-calls.ll
Domenic Nutile 5b33f85a08
[AMDGPU] Change isSingleLaneExecution to account for WWM enabling lanes even if there's only one workitem (#188316)
This issue was discovered during some downstream work around Vulkan CTS
tests, specifically
`dEQP-VK.subgroups.arithmetic.compute.subgroupadd_float`

---------

Co-authored-by: Matt Arsenault <arsenm2@gmail.com>
2026-04-06 12:51:46 -04:00

47 lines
2.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
; RUN: opt -S -mtriple=amdgcn-amd- -passes=amdgpu-attributor < %s | FileCheck %s
; Test to verify if the attribute gets propagated across nested function calls
; Added to prevent Attributor from deleting calls.
@x = global i32 0
;.
; CHECK: @x = global i32 0
;.
define void @func1() #0 {
; CHECK-LABEL: define {{[^@]+}}@func1
; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: store i32 0, ptr @x, align 4
; CHECK-NEXT: ret void
;
store i32 0, ptr @x
ret void
}
define void @func2() #1 {
; CHECK-LABEL: define {{[^@]+}}@func2
; CHECK-SAME: () #[[ATTR0]] {
; CHECK-NEXT: call void @func1()
; CHECK-NEXT: ret void
;
call void @func1()
ret void
}
define amdgpu_kernel void @kernel3() #2 {
; CHECK-LABEL: define {{[^@]+}}@kernel3
; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: call void @func2()
; CHECK-NEXT: ret void
;
call void @func2()
ret void
}
attributes #2 = { "uniform-work-group-size" }
;.
; CHECK: attributes #[[ATTR0]] = { "amdgpu-no-cluster-id-x" "amdgpu-no-cluster-id-y" "amdgpu-no-cluster-id-z" "amdgpu-no-completion-action" "amdgpu-no-default-queue" "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-flat-scratch-init" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "amdgpu-no-wwm" }
; CHECK: attributes #[[ATTR1]] = { "amdgpu-no-cluster-id-x" "amdgpu-no-cluster-id-y" "amdgpu-no-cluster-id-z" "amdgpu-no-completion-action" "amdgpu-no-default-queue" "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-flat-scratch-init" "amdgpu-no-heap-ptr" "amdgpu-no-hostcall-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-lds-kernel-id" "amdgpu-no-multigrid-sync-arg" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" "amdgpu-no-wwm" "uniform-work-group-size" }
;.