b9c6d9e6c3
This will do a value range merging down the callgraph, unlike the current pass which can only propagate values to undecorated functions from a kernel. This one is a bit weird due to the interaction with the implied range from amdgpu-flat-workgroup-size. At the default group range of 1,1024, the minimum implied bounds is 4 so this ends up introducing the attribute on undecorated functions. We could probably simplify this by ignoring it and propagating the raw values. The subtarget interaction and the interaction with amdgpu-flat-workgroup-size only really clamp invalid values (plus the lower bound doesn't seem to do anything as far as I can tell anyway).
37 lines
1.9 KiB
LLVM
37 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
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; RUN: opt -S -mtriple=amdgcn-amd- -amdgpu-attributor %s | FileCheck %s
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; If the kernel does not have the uniform-work-group-attribute, set both callee and caller as false
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; We write to a global so that the attributor don't deletes the function.
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@x = global i32 0
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;.
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; CHECK: @[[X:[a-zA-Z0-9_$"\\.-]+]] = global i32 0
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;.
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define void @foo() #0 {
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; CHECK-LABEL: define {{[^@]+}}@foo
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; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: store i32 0, ptr @x, align 4
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; CHECK-NEXT: ret void
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;
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store i32 0, ptr @x
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ret void
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}
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define amdgpu_kernel void @kernel1() #1 {
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; CHECK-LABEL: define {{[^@]+}}@kernel1
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; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: ret void
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;
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call void @foo()
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ret void
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}
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attributes #0 = { "uniform-work-group-size"="true" }
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;.
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; CHECK: attributes #[[ATTR0]] = { "amdgpu-no-completion-action" "amdgpu-no-default-queue" "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "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-waves-per-eu"="4,10" "uniform-work-group-size"="false" }
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; CHECK: attributes #[[ATTR1]] = { "amdgpu-no-completion-action" "amdgpu-no-default-queue" "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "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" "uniform-work-group-size"="false" }
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;.
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