mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-13 14:35:54 +00:00
d382d6f3fc
OpenCL 2.0 introduces the notion of memory scopes in atomic operations to
global and local memory. These scopes restrict how synchronization is
achieved, which can result in improved performance.
This change extends existing notion of synchronization scopes in LLVM to
support arbitrary scopes expressed as target-specific strings, in addition to
the already defined scopes (single thread, system).
The LLVM IR and MIR syntax for expressing synchronization scopes has changed
to use *syncscope("<scope>")*, where <scope> can be "singlethread" (this
replaces *singlethread* keyword), or a target-specific name. As before, if
the scope is not specified, it defaults to CrossThread/System scope.
Implementation details:
- Mapping from synchronization scope name/string to synchronization scope id
is stored in LLVM context;
- CrossThread/System and SingleThread scopes are pre-defined to efficiently
check for known scopes without comparing strings;
- Synchronization scope names are stored in SYNC_SCOPE_NAMES_BLOCK in
the bitcode.
Differential Revision: https://reviews.llvm.org/D21723
llvm-svn: 307722
330 lines
14 KiB
LLVM
330 lines
14 KiB
LLVM
; RUN: llvm-dis < %s.bc| FileCheck %s
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; RUN: verify-uselistorder < %s.bc
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; memOperations.3.2.ll.bc was generated by passing this file to llvm-as-3.2.
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; The test checks that LLVM does not misread memory related instructions of
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; older bitcode files.
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define void @alloca(){
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entry:
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; CHECK: %res1 = alloca i8
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%res1 = alloca i8
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; CHECK-NEXT: %res2 = alloca i8, i32 2
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%res2 = alloca i8, i32 2
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; CHECK-NEXT: %res3 = alloca i8, i32 2, align 4
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%res3 = alloca i8, i32 2, align 4
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; CHECK-NEXT: %res4 = alloca i8, align 4
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%res4 = alloca i8, align 4
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ret void
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}
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define void @load(){
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entry:
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%ptr1 = alloca i8
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store i8 2, i8* %ptr1
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; CHECK: %res1 = load i8, i8* %ptr1
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%res1 = load i8, i8* %ptr1
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; CHECK-NEXT: %res2 = load volatile i8, i8* %ptr1
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%res2 = load volatile i8, i8* %ptr1
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; CHECK-NEXT: %res3 = load i8, i8* %ptr1, align 1
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%res3 = load i8, i8* %ptr1, align 1
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; CHECK-NEXT: %res4 = load volatile i8, i8* %ptr1, align 1
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%res4 = load volatile i8, i8* %ptr1, align 1
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; CHECK-NEXT: %res5 = load i8, i8* %ptr1, !nontemporal !0
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%res5 = load i8, i8* %ptr1, !nontemporal !0
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; CHECK-NEXT: %res6 = load volatile i8, i8* %ptr1, !nontemporal !0
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%res6 = load volatile i8, i8* %ptr1, !nontemporal !0
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; CHECK-NEXT: %res7 = load i8, i8* %ptr1, align 1, !nontemporal !0
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%res7 = load i8, i8* %ptr1, align 1, !nontemporal !0
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; CHECK-NEXT: %res8 = load volatile i8, i8* %ptr1, align 1, !nontemporal !0
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%res8 = load volatile i8, i8* %ptr1, align 1, !nontemporal !0
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; CHECK-NEXT: %res9 = load i8, i8* %ptr1, !invariant.load !1
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%res9 = load i8, i8* %ptr1, !invariant.load !1
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; CHECK-NEXT: %res10 = load volatile i8, i8* %ptr1, !invariant.load !1
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%res10 = load volatile i8, i8* %ptr1, !invariant.load !1
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; CHECK-NEXT: %res11 = load i8, i8* %ptr1, align 1, !invariant.load !1
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%res11 = load i8, i8* %ptr1, align 1, !invariant.load !1
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; CHECK-NEXT: %res12 = load volatile i8, i8* %ptr1, align 1, !invariant.load !1
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%res12 = load volatile i8, i8* %ptr1, align 1, !invariant.load !1
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; CHECK-NEXT: %res13 = load i8, i8* %ptr1, {{[(!nontemporal !0, !invariant.load !1) | (!invariant.load !1, !nontemporal !0)]}}
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%res13 = load i8, i8* %ptr1, !nontemporal !0, !invariant.load !1
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; CHECK-NEXT: %res14 = load volatile i8, i8* %ptr1, {{[(!nontemporal !0, !invariant.load !1) | (!invariant.load !1, !nontemporal !0)]}}
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%res14 = load volatile i8, i8* %ptr1, !nontemporal !0, !invariant.load !1
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; CHECK-NEXT: %res15 = load i8, i8* %ptr1, align 1, {{[(!nontemporal !0, !invariant.load !1) | (!invariant.load !1, !nontemporal !0)]}}
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%res15 = load i8, i8* %ptr1, align 1, !nontemporal !0, !invariant.load !1
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; CHECK-NEXT: %res16 = load volatile i8, i8* %ptr1, align 1, {{[(!nontemporal !0, !invariant.load !1) | (!invariant.load !1, !nontemporal !0)]}}
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%res16 = load volatile i8, i8* %ptr1, align 1, !nontemporal !0, !invariant.load !1
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ret void
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}
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define void @loadAtomic(){
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entry:
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%ptr1 = alloca i8
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store i8 2, i8* %ptr1
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; CHECK: %res1 = load atomic i8, i8* %ptr1 unordered, align 1
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%res1 = load atomic i8, i8* %ptr1 unordered, align 1
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; CHECK-NEXT: %res2 = load atomic i8, i8* %ptr1 monotonic, align 1
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%res2 = load atomic i8, i8* %ptr1 monotonic, align 1
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; CHECK-NEXT: %res3 = load atomic i8, i8* %ptr1 acquire, align 1
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%res3 = load atomic i8, i8* %ptr1 acquire, align 1
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; CHECK-NEXT: %res4 = load atomic i8, i8* %ptr1 seq_cst, align 1
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%res4 = load atomic i8, i8* %ptr1 seq_cst, align 1
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; CHECK-NEXT: %res5 = load atomic volatile i8, i8* %ptr1 unordered, align 1
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%res5 = load atomic volatile i8, i8* %ptr1 unordered, align 1
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; CHECK-NEXT: %res6 = load atomic volatile i8, i8* %ptr1 monotonic, align 1
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%res6 = load atomic volatile i8, i8* %ptr1 monotonic, align 1
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; CHECK-NEXT: %res7 = load atomic volatile i8, i8* %ptr1 acquire, align 1
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%res7 = load atomic volatile i8, i8* %ptr1 acquire, align 1
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; CHECK-NEXT: %res8 = load atomic volatile i8, i8* %ptr1 seq_cst, align 1
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%res8 = load atomic volatile i8, i8* %ptr1 seq_cst, align 1
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; CHECK-NEXT: %res9 = load atomic i8, i8* %ptr1 syncscope("singlethread") unordered, align 1
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%res9 = load atomic i8, i8* %ptr1 syncscope("singlethread") unordered, align 1
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; CHECK-NEXT: %res10 = load atomic i8, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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%res10 = load atomic i8, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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; CHECK-NEXT: %res11 = load atomic i8, i8* %ptr1 syncscope("singlethread") acquire, align 1
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%res11 = load atomic i8, i8* %ptr1 syncscope("singlethread") acquire, align 1
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; CHECK-NEXT: %res12 = load atomic i8, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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%res12 = load atomic i8, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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; CHECK-NEXT: %res13 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") unordered, align 1
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%res13 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") unordered, align 1
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; CHECK-NEXT: %res14 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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%res14 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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; CHECK-NEXT: %res15 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") acquire, align 1
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%res15 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") acquire, align 1
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; CHECK-NEXT: %res16 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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%res16 = load atomic volatile i8, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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ret void
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}
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define void @store(){
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entry:
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%ptr1 = alloca i8
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; CHECK: store i8 2, i8* %ptr1
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store i8 2, i8* %ptr1
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; CHECK-NEXT: store volatile i8 2, i8* %ptr1
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store volatile i8 2, i8* %ptr1
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; CHECK-NEXT: store i8 2, i8* %ptr1, align 1
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store i8 2, i8* %ptr1, align 1
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; CHECK-NEXT: store volatile i8 2, i8* %ptr1, align 1
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store volatile i8 2, i8* %ptr1, align 1
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; CHECK-NEXT: store i8 2, i8* %ptr1, !nontemporal !0
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store i8 2, i8* %ptr1, !nontemporal !0
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; CHECK-NEXT: store volatile i8 2, i8* %ptr1, !nontemporal !0
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store volatile i8 2, i8* %ptr1, !nontemporal !0
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; CHECK-NEXT: store i8 2, i8* %ptr1, align 1, !nontemporal !0
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store i8 2, i8* %ptr1, align 1, !nontemporal !0
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; CHECK-NEXT: store volatile i8 2, i8* %ptr1, align 1, !nontemporal !0
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store volatile i8 2, i8* %ptr1, align 1, !nontemporal !0
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ret void
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}
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define void @storeAtomic(){
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entry:
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%ptr1 = alloca i8
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; CHECK: store atomic i8 2, i8* %ptr1 unordered, align 1
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store atomic i8 2, i8* %ptr1 unordered, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 monotonic, align 1
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store atomic i8 2, i8* %ptr1 monotonic, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 release, align 1
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store atomic i8 2, i8* %ptr1 release, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 seq_cst, align 1
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store atomic i8 2, i8* %ptr1 seq_cst, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 unordered, align 1
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store atomic volatile i8 2, i8* %ptr1 unordered, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 monotonic, align 1
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store atomic volatile i8 2, i8* %ptr1 monotonic, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 release, align 1
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store atomic volatile i8 2, i8* %ptr1 release, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 seq_cst, align 1
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store atomic volatile i8 2, i8* %ptr1 seq_cst, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 syncscope("singlethread") unordered, align 1
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store atomic i8 2, i8* %ptr1 syncscope("singlethread") unordered, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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store atomic i8 2, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 syncscope("singlethread") release, align 1
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store atomic i8 2, i8* %ptr1 syncscope("singlethread") release, align 1
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; CHECK-NEXT: store atomic i8 2, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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store atomic i8 2, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") unordered, align 1
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store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") unordered, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") monotonic, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") release, align 1
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store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") release, align 1
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; CHECK-NEXT: store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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store atomic volatile i8 2, i8* %ptr1 syncscope("singlethread") seq_cst, align 1
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ret void
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}
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define void @cmpxchg(i32* %ptr,i32 %cmp,i32 %new){
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entry:
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;cmpxchg [volatile] <ty>* <pointer>, <ty> <cmp>, <ty> <new> [singlethread] <ordering>
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; CHECK: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new monotonic monotonic
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; CHECK-NEXT: %res1 = extractvalue { i32, i1 } [[TMP]], 0
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%res1 = cmpxchg i32* %ptr, i32 %cmp, i32 %new monotonic monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new monotonic monotonic
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; CHECK-NEXT: %res2 = extractvalue { i32, i1 } [[TMP]], 0
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%res2 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new monotonic monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") monotonic monotonic
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; CHECK-NEXT: %res3 = extractvalue { i32, i1 } [[TMP]], 0
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%res3 = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") monotonic monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") monotonic monotonic
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; CHECK-NEXT: %res4 = extractvalue { i32, i1 } [[TMP]], 0
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%res4 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") monotonic monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new acquire acquire
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; CHECK-NEXT: %res5 = extractvalue { i32, i1 } [[TMP]], 0
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%res5 = cmpxchg i32* %ptr, i32 %cmp, i32 %new acquire acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new acquire acquire
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; CHECK-NEXT: %res6 = extractvalue { i32, i1 } [[TMP]], 0
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%res6 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new acquire acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acquire acquire
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; CHECK-NEXT: %res7 = extractvalue { i32, i1 } [[TMP]], 0
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%res7 = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acquire acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acquire acquire
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; CHECK-NEXT: %res8 = extractvalue { i32, i1 } [[TMP]], 0
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%res8 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acquire acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new release monotonic
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; CHECK-NEXT: %res9 = extractvalue { i32, i1 } [[TMP]], 0
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%res9 = cmpxchg i32* %ptr, i32 %cmp, i32 %new release monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new release monotonic
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; CHECK-NEXT: %res10 = extractvalue { i32, i1 } [[TMP]], 0
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%res10 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new release monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") release monotonic
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; CHECK-NEXT: %res11 = extractvalue { i32, i1 } [[TMP]], 0
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%res11 = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") release monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") release monotonic
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; CHECK-NEXT: %res12 = extractvalue { i32, i1 } [[TMP]], 0
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%res12 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") release monotonic
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new acq_rel acquire
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; CHECK-NEXT: %res13 = extractvalue { i32, i1 } [[TMP]], 0
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%res13 = cmpxchg i32* %ptr, i32 %cmp, i32 %new acq_rel acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new acq_rel acquire
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; CHECK-NEXT: %res14 = extractvalue { i32, i1 } [[TMP]], 0
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%res14 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new acq_rel acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acq_rel acquire
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; CHECK-NEXT: %res15 = extractvalue { i32, i1 } [[TMP]], 0
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%res15 = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acq_rel acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acq_rel acquire
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; CHECK-NEXT: %res16 = extractvalue { i32, i1 } [[TMP]], 0
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%res16 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") acq_rel acquire
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new seq_cst seq_cst
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; CHECK-NEXT: %res17 = extractvalue { i32, i1 } [[TMP]], 0
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%res17 = cmpxchg i32* %ptr, i32 %cmp, i32 %new seq_cst seq_cst
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new seq_cst seq_cst
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; CHECK-NEXT: %res18 = extractvalue { i32, i1 } [[TMP]], 0
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%res18 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new seq_cst seq_cst
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") seq_cst seq_cst
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; CHECK-NEXT: %res19 = extractvalue { i32, i1 } [[TMP]], 0
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%res19 = cmpxchg i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") seq_cst seq_cst
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; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") seq_cst seq_cst
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; CHECK-NEXT: %res20 = extractvalue { i32, i1 } [[TMP]], 0
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%res20 = cmpxchg volatile i32* %ptr, i32 %cmp, i32 %new syncscope("singlethread") seq_cst seq_cst
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ret void
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}
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define void @getelementptr({i8, i8}, {i8, i8}* %s, <4 x i8*> %ptrs, <4 x i64> %offsets ){
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entry:
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; CHECK: %res1 = getelementptr { i8, i8 }, { i8, i8 }* %s, i32 1, i32 1
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%res1 = getelementptr {i8, i8}, {i8, i8}* %s, i32 1, i32 1
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; CHECK-NEXT: %res2 = getelementptr inbounds { i8, i8 }, { i8, i8 }* %s, i32 1, i32 1
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%res2 = getelementptr inbounds {i8, i8}, {i8, i8}* %s, i32 1, i32 1
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; CHECK-NEXT: %res3 = getelementptr i8, <4 x i8*> %ptrs, <4 x i64> %offsets
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%res3 = getelementptr i8, <4 x i8*> %ptrs, <4 x i64> %offsets
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ret void
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}
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!0 = metadata !{ i32 1 }
|
|
!1 = metadata !{}
|