d8f99bb6e0
The module flag to indicate use of hostcall is insufficient to catch all cases where hostcall might be in use by a kernel. This is now replaced by a function attribute that gets propagated to top-level kernel functions via their respective call-graph. If the attribute "amdgpu-no-hostcall-ptr" is absent on a kernel, the default behaviour is to emit kernel metadata indicating that the kernel uses the hostcall buffer pointer passed as an implicit argument. The attribute may be placed explicitly by the user, or inferred by the AMDGPU attributor by examining the call-graph. The attribute is inferred only if the function is not being sanitized, and the implictarg_ptr does not result in a load of any byte in the hostcall pointer argument. Reviewed By: jdoerfert, arsenm, kpyzhov Differential Revision: https://reviews.llvm.org/D119216
311 lines
12 KiB
LLVM
311 lines
12 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx700 --amdhsa-code-object-version=2 -filetype=obj -o - < %s | llvm-readelf --notes - | FileCheck --check-prefix=CHECK %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx803 --amdhsa-code-object-version=2 -filetype=obj -o - < %s | llvm-readelf --notes - | FileCheck --check-prefix=CHECK %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 --amdhsa-code-object-version=2 -filetype=obj -o - < %s | llvm-readelf --notes - | FileCheck --check-prefix=CHECK %s
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; CHECK: ---
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; CHECK: Version: [ 1, 0 ]
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; CHECK: Kernels:
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; CHECK: - Name: test0
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; CHECK: SymbolName: 'test0@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test0(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; CHECK: - Name: test8
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; CHECK: SymbolName: 'test8@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetX
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test8(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) #0 {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; CHECK: - Name: test16
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; CHECK: SymbolName: 'test16@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetX
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetY
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test16(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) #1 {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; CHECK: - Name: test24
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; CHECK: SymbolName: 'test24@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetX
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetY
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetZ
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test24(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) #2 {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; CHECK: - Name: test32
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; CHECK: SymbolName: 'test32@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetX
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetY
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetZ
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenHostcallBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test32(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) #3 {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; CHECK: - Name: test48
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; CHECK: SymbolName: 'test48@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetX
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetY
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetZ
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenHostcallBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenNone
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenNone
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test48(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) #4 {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; CHECK: - Name: test56
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; CHECK: SymbolName: 'test56@kd'
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; CHECK: Args:
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; CHECK-NEXT: - Name: r
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: a
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Name: b
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; CHECK-NEXT: Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: GlobalBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetX
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetY
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenGlobalOffsetZ
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenHostcallBuffer
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenNone
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenNone
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: - Size: 8
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; CHECK-NEXT: Align: 8
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; CHECK-NEXT: ValueKind: HiddenMultiGridSyncArg
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; CHECK-NEXT: AddrSpaceQual: Global
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; CHECK-NEXT: CodeProps:
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define amdgpu_kernel void @test56(
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half addrspace(1)* %r,
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half addrspace(1)* %a,
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half addrspace(1)* %b) #5 {
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entry:
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%a.val = load half, half addrspace(1)* %a
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%b.val = load half, half addrspace(1)* %b
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%r.val = fadd half %a.val, %b.val
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store half %r.val, half addrspace(1)* %r
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ret void
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}
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; We don't have a use of llvm.amdgcn.implicitarg.ptr, so optnone to
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; avoid optimizing out the implicit argument allocation.
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attributes #0 = { optnone noinline "amdgpu-implicitarg-num-bytes"="8" }
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attributes #1 = { optnone noinline "amdgpu-implicitarg-num-bytes"="16" }
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attributes #2 = { optnone noinline "amdgpu-implicitarg-num-bytes"="24" }
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attributes #3 = { optnone noinline "amdgpu-implicitarg-num-bytes"="32" }
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attributes #4 = { optnone noinline "amdgpu-implicitarg-num-bytes"="48" }
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attributes #5 = { optnone noinline "amdgpu-implicitarg-num-bytes"="56" }
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