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120 lines
4.6 KiB
LLVM
120 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
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; RUN: opt -S -passes='instcombine' -mtriple=amdgcn-amd-amdhsa < %s | FileCheck %s --check-prefix=AMDHSA
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; RUN: opt -S -passes='instcombine' -mtriple=amdgcn-mesa-mesa3d < %s | FileCheck %s --check-prefix=MESA
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; InstCombine added retattr dereferenceable(bytes) to a "call ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()".
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define ptr addrspace(4) @foo() {
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; AMDHSA-LABEL: define ptr addrspace(4) @foo() {
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; AMDHSA-NEXT: [[ENTRY:.*:]]
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; AMDHSA-NEXT: [[TMP:%.*]] = tail call dereferenceable(256) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; AMDHSA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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; MESA-LABEL: define ptr addrspace(4) @foo() {
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; MESA-NEXT: [[ENTRY:.*:]]
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; MESA-NEXT: [[TMP:%.*]] = tail call dereferenceable(16) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; MESA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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entry:
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%tmp = tail call ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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ret ptr addrspace(4) %tmp
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}
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define ptr addrspace(4) @bar() {
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; AMDHSA-LABEL: define ptr addrspace(4) @bar() {
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; AMDHSA-NEXT: [[ENTRY:.*:]]
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; AMDHSA-NEXT: [[TMP:%.*]] = tail call dereferenceable(256) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; AMDHSA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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; MESA-LABEL: define ptr addrspace(4) @bar() {
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; MESA-NEXT: [[ENTRY:.*:]]
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; MESA-NEXT: [[TMP:%.*]] = tail call dereferenceable(128) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; MESA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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entry:
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%tmp = tail call dereferenceable(128) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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ret ptr addrspace(4) %tmp
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}
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define ptr addrspace(4) @baz() {
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; AMDHSA-LABEL: define ptr addrspace(4) @baz() {
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; AMDHSA-NEXT: [[ENTRY:.*:]]
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; AMDHSA-NEXT: [[TMP:%.*]] = tail call dereferenceable(512) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; AMDHSA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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; MESA-LABEL: define ptr addrspace(4) @baz() {
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; MESA-NEXT: [[ENTRY:.*:]]
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; MESA-NEXT: [[TMP:%.*]] = tail call dereferenceable(512) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; MESA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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entry:
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%tmp = tail call dereferenceable(512) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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ret ptr addrspace(4) %tmp
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}
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define ptr addrspace(4) @derefornull() {
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; AMDHSA-LABEL: define ptr addrspace(4) @derefornull() {
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; AMDHSA-NEXT: [[ENTRY:.*:]]
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; AMDHSA-NEXT: [[TMP:%.*]] = tail call dereferenceable(256) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; AMDHSA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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; MESA-LABEL: define ptr addrspace(4) @derefornull() {
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; MESA-NEXT: [[ENTRY:.*:]]
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; MESA-NEXT: [[TMP:%.*]] = tail call dereferenceable(64) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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; MESA-NEXT: ret ptr addrspace(4) [[TMP]]
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;
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entry:
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%tmp = tail call dereferenceable_or_null(64) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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ret ptr addrspace(4) %tmp
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}
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; When amdgpu-no-implicitarg-ptr is set, calling the intrinsic is UB and the
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; call should be folded to poison.
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define ptr addrspace(4) @no_implicitarg_ptr() #2 {
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; AMDHSA-LABEL: define ptr addrspace(4) @no_implicitarg_ptr(
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; AMDHSA-SAME: ) #[[ATTR0:[0-9]+]] {
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; AMDHSA-NEXT: [[ENTRY:.*:]]
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; AMDHSA-NEXT: ret ptr addrspace(4) poison
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;
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; MESA-LABEL: define ptr addrspace(4) @no_implicitarg_ptr(
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; MESA-SAME: ) #[[ATTR0:[0-9]+]] {
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; MESA-NEXT: [[ENTRY:.*:]]
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; MESA-NEXT: ret ptr addrspace(4) poison
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;
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entry:
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%tmp = tail call ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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ret ptr addrspace(4) %tmp
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}
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; When amdgpu-no-implicitarg-ptr is set, a load from the intrinsic's returned
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; pointer is also UB. The call folds to poison and loading from poison yields
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; poison via existing InstCombine rules.
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define i32 @no_implicitarg_ptr_load() #2 {
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; AMDHSA-LABEL: define i32 @no_implicitarg_ptr_load(
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; AMDHSA-SAME: ) #[[ATTR0]] {
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; AMDHSA-NEXT: [[ENTRY:.*:]]
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; AMDHSA-NEXT: store i1 true, ptr poison, align 1
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; AMDHSA-NEXT: ret i32 poison
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;
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; MESA-LABEL: define i32 @no_implicitarg_ptr_load(
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; MESA-SAME: ) #[[ATTR0]] {
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; MESA-NEXT: [[ENTRY:.*:]]
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; MESA-NEXT: store i1 true, ptr poison, align 1
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; MESA-NEXT: ret i32 poison
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;
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entry:
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%ptr = call ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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%val = load i32, ptr addrspace(4) %ptr
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ret i32 %val
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}
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; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
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declare noundef align 4 ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr() #1
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attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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attributes #2 = { "amdgpu-no-implicitarg-ptr" }
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"amdhsa_code_object_version", i32 600}
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