9ed2f14c87
IR is now always parsed in opaque pointer mode, unless -opaque-pointers=0 is explicitly given. There is no automatic detection of typed pointers anymore. The -opaque-pointers=0 option is added to any remaining IR tests that haven't been migrated yet. Differential Revision: https://reviews.llvm.org/D141912
89 lines
2.7 KiB
LLVM
89 lines
2.7 KiB
LLVM
; RUN: opt -opaque-pointers=0 -S -mtriple=amdgcn-- -amdgpu-replace-lds-use-with-pointer -amdgpu-enable-lds-replace-with-pointer=true < %s | FileCheck %s
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; DESCRIPTION:
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;
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; The lds global @lds_used_within_func is used within non-kernel function @func_uses_lds
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; which is recheable from kernel @kernel_reaches_lds, hence pointer replacement takes place
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; for @lds_used_within_func.
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;
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; Original LDS should exist.
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; CHECK: @lds_used_within_func = internal addrspace(3) global [4 x i32] undef, align 4
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@lds_used_within_func = internal addrspace(3) global [4 x i32] undef, align 4
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; Pointer should be created.
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; CHECK: @lds_used_within_func.ptr = internal unnamed_addr addrspace(3) global i16 undef, align 2
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; Pointer replacement code should be added.
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define internal void @func_uses_lds() {
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; CHECK-LABEL: entry:
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; CHECK: %0 = load i16, i16 addrspace(3)* @lds_used_within_func.ptr, align 2
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; CHECK: %1 = getelementptr i8, i8 addrspace(3)* null, i16 %0
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; CHECK: %2 = bitcast i8 addrspace(3)* %1 to [4 x i32] addrspace(3)*
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; CHECK: %gep = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* %2, i32 0, i32 0
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; CHECK: ret void
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entry:
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%gep = getelementptr inbounds [4 x i32], [4 x i32] addrspace(3)* @lds_used_within_func, i32 0, i32 0
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ret void
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}
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; No change
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define internal void @func_does_not_use_lds_3() {
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; CHECK-LABEL: entry:
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; CHECK: call void @func_uses_lds()
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; CHECK: ret void
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entry:
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call void @func_uses_lds()
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ret void
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}
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; No change
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define internal void @func_does_not_use_lds_2() {
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; CHECK-LABEL: entry:
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; CHECK: call void @func_uses_lds()
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; CHECK: ret void
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entry:
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call void @func_uses_lds()
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ret void
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}
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; No change
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define internal void @func_does_not_use_lds_1() {
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; CHECK-LABEL: entry:
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; CHECK: call void @func_does_not_use_lds_2()
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; CHECK: call void @func_does_not_use_lds_3()
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; CHECK: ret void
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entry:
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call void @func_does_not_use_lds_2()
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call void @func_does_not_use_lds_3()
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ret void
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}
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; Pointer initialization code shoud be added
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define protected amdgpu_kernel void @kernel_reaches_lds() {
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; CHECK-LABEL: entry:
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; CHECK: %0 = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0)
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; CHECK: %1 = icmp eq i32 %0, 0
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; CHECK: br i1 %1, label %2, label %3
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;
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; CHECK-LABEL: 2:
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; CHECK: store i16 ptrtoint ([4 x i32] addrspace(3)* @lds_used_within_func to i16), i16 addrspace(3)* @lds_used_within_func.ptr, align 2
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; CHECK: br label %3
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;
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; CHECK-LABEL: 3:
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; CHECK: call void @llvm.amdgcn.wave.barrier()
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; CHECK: call void @func_does_not_use_lds_1()
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; CHECK: ret void
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entry:
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call void @func_does_not_use_lds_1()
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ret void
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}
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; No change here since this kernel does not reach @func_uses_lds which uses lds.
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define protected amdgpu_kernel void @kernel_does_not_reach_lds() {
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; CHECK-LABEL: entry:
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; CHECK: ret void
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entry:
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ret void
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}
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