| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s |
| ; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s |
| |
| ; A collection of tests for exercising the base inference logic in the |
| ; findBasePointers. That is, the logic which proves a potentially derived |
| ; pointer is actually a base pointer itself. |
| |
| define i8 addrspace(1)* @test(i8 addrspace(1)* %a) gc "statepoint-example" { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[A:%.*]]) ] |
| ; CHECK-NEXT: [[A_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[A_RELOCATED]] |
| ; |
| call void @foo() |
| ret i8 addrspace(1)* %a |
| } |
| |
| define i8 addrspace(1)* @test_select(i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_select( |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i8 addrspace(1)* [[A1:%.*]], i8 addrspace(1)* [[A2:%.*]] |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[SEL]]) ] |
| ; CHECK-NEXT: [[SEL_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[SEL_RELOCATED]] |
| ; |
| %sel = select i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2 |
| call void @foo() |
| ret i8 addrspace(1)* %sel |
| } |
| |
| define i8 addrspace(1)* @test_phi1(i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_phi1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]] |
| ; CHECK: taken: |
| ; CHECK-NEXT: br label [[MERGE:%.*]] |
| ; CHECK: untaken: |
| ; CHECK-NEXT: br label [[MERGE]] |
| ; CHECK: merge: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi i8 addrspace(1)* [ [[A1:%.*]], [[TAKEN]] ], [ [[A2:%.*]], [[UNTAKEN]] ] |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[PHI]]) ] |
| ; CHECK-NEXT: [[PHI_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[PHI_RELOCATED]] |
| ; |
| entry: |
| br i1 %c, label %taken, label %untaken |
| taken: |
| br label %merge |
| untaken: |
| br label %merge |
| merge: |
| %phi = phi i8 addrspace(1)* [%a1, %taken], [%a2, %untaken] |
| call void @foo() |
| ret i8 addrspace(1)* %phi |
| } |
| |
| define i8 addrspace(1)* @test_phi_lcssa(i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_phi_lcssa( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[MERGE:%.*]] |
| ; CHECK: merge: |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[A1:%.*]]) ] |
| ; CHECK-NEXT: [[A1_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[A1_RELOCATED]] |
| ; |
| entry: |
| br label %merge |
| merge: |
| %phi = phi i8 addrspace(1)* [%a1, %entry] |
| call void @foo() |
| ret i8 addrspace(1)* %phi |
| } |
| |
| |
| define i8 addrspace(1)* @test_loop1(i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_loop1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi i8 addrspace(1)* [ [[A1:%.*]], [[ENTRY:%.*]] ], [ [[A2:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[LOOP]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[PHI]]) ] |
| ; CHECK-NEXT: [[PHI_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[PHI_RELOCATED]] |
| ; |
| entry: |
| br label %loop |
| loop: |
| %phi = phi i8 addrspace(1)* [%a1, %entry], [%a2, %loop] |
| br i1 %c, label %exit, label %loop |
| exit: |
| %phi2 = phi i8 addrspace(1)* [%phi, %loop] |
| call void @foo() |
| ret i8 addrspace(1)* %phi2 |
| } |
| |
| define i8 addrspace(1)* @test_loop2(i1 %c, i8 addrspace(1)* %a1) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_loop2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi i8 addrspace(1)* [ [[A1:%.*]], [[ENTRY:%.*]] ], [ [[O2:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: [[ADDR:%.*]] = bitcast i8 addrspace(1)* [[PHI]] to i8 addrspace(1)* addrspace(1)* |
| ; CHECK-NEXT: [[O2]] = load i8 addrspace(1)*, i8 addrspace(1)* addrspace(1)* [[ADDR]], align 8 |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[LOOP]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[PHI]]) ] |
| ; CHECK-NEXT: [[PHI_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[PHI_RELOCATED]] |
| ; |
| entry: |
| br label %loop |
| loop: |
| %phi = phi i8 addrspace(1)* [%a1, %entry], [%o2, %loop] |
| %addr = bitcast i8 addrspace(1)* %phi to i8 addrspace(1)* addrspace(1)* |
| %o2 = load i8 addrspace(1)*, i8 addrspace(1)* addrspace(1)* %addr |
| br i1 %c, label %exit, label %loop |
| exit: |
| %phi2 = phi i8 addrspace(1)* [%phi, %loop] |
| call void @foo() |
| ret i8 addrspace(1)* %phi2 |
| } |
| |
| ; %phi1 and phi2 are not base pointers, but they do have a single |
| ; base pointer which is %a1 |
| define i8 addrspace(1)* @test_loop3(i1 %c, i8 addrspace(1)* %a1) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_loop3( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi i8 addrspace(1)* [ [[A1:%.*]], [[ENTRY:%.*]] ], [ [[GEP:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: [[GEP]] = getelementptr i8, i8 addrspace(1)* [[PHI]], i64 16 |
| ; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[LOOP]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[PHI]], i8 addrspace(1)* [[A1]]) ] |
| ; CHECK-NEXT: [[PHI_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0) |
| ; CHECK-NEXT: [[A1_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[PHI_RELOCATED]] |
| ; |
| entry: |
| br label %loop |
| loop: |
| %phi = phi i8 addrspace(1)* [%a1, %entry], [%gep, %loop] |
| %gep = getelementptr i8, i8 addrspace(1)* %phi, i64 16 |
| br i1 %c, label %exit, label %loop |
| exit: |
| %phi2 = phi i8 addrspace(1)* [%phi, %loop] |
| call void @foo() |
| ret i8 addrspace(1)* %phi2 |
| } |
| |
| define <2 x i8 addrspace(1)*> @test_vec_passthrough(<2 x i8 addrspace(1)*> %a) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_vec_passthrough( |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(<2 x i8 addrspace(1)*> [[A:%.*]]) ] |
| ; CHECK-NEXT: [[A_RELOCATED:%.*]] = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret <2 x i8 addrspace(1)*> [[A_RELOCATED]] |
| ; |
| call void @foo() |
| ret <2 x i8 addrspace(1)*> %a |
| } |
| |
| |
| define <2 x i8 addrspace(1)*> @test_insert(i8 addrspace(1)* %a) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_insert( |
| ; CHECK-NEXT: [[VEC:%.*]] = insertelement <2 x i8 addrspace(1)*> zeroinitializer, i8 addrspace(1)* [[A:%.*]], i64 0 |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(<2 x i8 addrspace(1)*> [[VEC]]) ] |
| ; CHECK-NEXT: [[VEC_RELOCATED:%.*]] = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret <2 x i8 addrspace(1)*> [[VEC_RELOCATED]] |
| ; |
| %vec = insertelement <2 x i8 addrspace(1)*> zeroinitializer, i8 addrspace(1)* %a, i64 0 |
| call void @foo() |
| ret <2 x i8 addrspace(1)*> %vec |
| } |
| |
| define i8 addrspace(1)* @test_extract(<2 x i8 addrspace(1)*> %a) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_extract( |
| ; CHECK-NEXT: [[EE:%.*]] = extractelement <2 x i8 addrspace(1)*> [[A:%.*]], i64 0 |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[EE]]) ] |
| ; CHECK-NEXT: [[EE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret i8 addrspace(1)* [[EE_RELOCATED]] |
| ; |
| %ee = extractelement <2 x i8 addrspace(1)*> %a, i64 0 |
| call void @foo() |
| ret i8 addrspace(1)* %ee |
| } |
| |
| define <2 x i8 addrspace(1)*> @test_shuffle(<2 x i8 addrspace(1)*> %a1) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_shuffle( |
| ; CHECK-NEXT: [[RES:%.*]] = shufflevector <2 x i8 addrspace(1)*> [[A1:%.*]], <2 x i8 addrspace(1)*> [[A1]], <2 x i32> zeroinitializer |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(<2 x i8 addrspace(1)*> [[RES]]) ] |
| ; CHECK-NEXT: [[RES_RELOCATED:%.*]] = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret <2 x i8 addrspace(1)*> [[RES_RELOCATED]] |
| ; |
| %res = shufflevector <2 x i8 addrspace(1)*> %a1, <2 x i8 addrspace(1)*> %a1, <2 x i32> zeroinitializer |
| call void @foo() |
| ret <2 x i8 addrspace(1)*> %res |
| } |
| |
| define <2 x i8 addrspace(1)*> @test_shuffle2(<2 x i8 addrspace(1)*> %a1, <2 x i8 addrspace(1)*> %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_shuffle2( |
| ; CHECK-NEXT: [[RES:%.*]] = shufflevector <2 x i8 addrspace(1)*> [[A1:%.*]], <2 x i8 addrspace(1)*> [[A2:%.*]], <2 x i32> zeroinitializer |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(<2 x i8 addrspace(1)*> [[RES]]) ] |
| ; CHECK-NEXT: [[RES_RELOCATED:%.*]] = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret <2 x i8 addrspace(1)*> [[RES_RELOCATED]] |
| ; |
| %res = shufflevector <2 x i8 addrspace(1)*> %a1, <2 x i8 addrspace(1)*> %a2, <2 x i32> zeroinitializer |
| call void @foo() |
| ret <2 x i8 addrspace(1)*> %res |
| } |
| |
| define <4 x i8 addrspace(1)*> @test_shuffle_concat(<2 x i8 addrspace(1)*> %a1, <2 x i8 addrspace(1)*> %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_shuffle_concat( |
| ; CHECK-NEXT: [[RES:%.*]] = shufflevector <2 x i8 addrspace(1)*> [[A1:%.*]], <2 x i8 addrspace(1)*> [[A2:%.*]], <4 x i32> <i32 0, i32 1, i32 2, i32 3> |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(<4 x i8 addrspace(1)*> [[RES]]) ] |
| ; CHECK-NEXT: [[RES_RELOCATED:%.*]] = call coldcc <4 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v4p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret <4 x i8 addrspace(1)*> [[RES_RELOCATED]] |
| ; |
| %res = shufflevector <2 x i8 addrspace(1)*> %a1, <2 x i8 addrspace(1)*> %a2, <4 x i32> <i32 0, i32 1, i32 2, i32 3> |
| call void @foo() |
| ret <4 x i8 addrspace(1)*> %res |
| } |
| |
| ; TODO: Special case worth handling - we interpret the shuffle as if we need |
| ; to select the base pointers from either input when the mask is known. |
| define <2 x i8 addrspace(1)*> @test_shuffle_broadcast(i8 addrspace(1)* %a) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_shuffle_broadcast( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[IE:%.*]] = insertelement <2 x i8 addrspace(1)*> zeroinitializer, i8 addrspace(1)* [[A:%.*]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST:%.*]] = shufflevector <2 x i8 addrspace(1)*> [[IE]], <2 x i8 addrspace(1)*> undef, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(<2 x i8 addrspace(1)*> [[BROADCAST]]) ] |
| ; CHECK-NEXT: [[BROADCAST_RELOCATED:%.*]] = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: ret <2 x i8 addrspace(1)*> [[BROADCAST_RELOCATED]] |
| ; |
| entry: |
| %ie = insertelement <2 x i8 addrspace(1)*> zeroinitializer, i8 addrspace(1)* %a, i64 0 |
| %broadcast = shufflevector <2 x i8 addrspace(1)*> %ie, <2 x i8 addrspace(1)*> undef, <2 x i32> zeroinitializer |
| call void @foo() |
| ret <2 x i8 addrspace(1)*> %broadcast |
| } |
| |
| ; Show a case where only a portion of the sub-graph propagates base pointers. |
| define i8 @test_subgraph(i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_subgraph( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i8 addrspace(1)* [[A1:%.*]], i8 addrspace(1)* [[A2:%.*]] |
| ; CHECK-NEXT: br i1 [[C]], label [[TAKEN:%.*]], label [[MERGE:%.*]] |
| ; CHECK: taken: |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, i8 addrspace(1)* [[SEL]], i64 8 |
| ; CHECK-NEXT: br label [[MERGE]] |
| ; CHECK: merge: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi i8 addrspace(1)* [ [[GEP]], [[TAKEN]] ], [ [[SEL]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[PHI]], i8 addrspace(1)* [[SEL]]) ] |
| ; CHECK-NEXT: [[PHI_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0) |
| ; CHECK-NEXT: [[SEL_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1) |
| ; CHECK-NEXT: [[RES:%.*]] = load i8, i8 addrspace(1)* [[PHI_RELOCATED]], align 1 |
| ; CHECK-NEXT: ret i8 [[RES]] |
| ; |
| entry: |
| %sel = select i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2 |
| br i1 %c, label %taken, label %merge |
| taken: |
| %gep = getelementptr i8, i8 addrspace(1)* %sel, i64 8 |
| br label %merge |
| merge: |
| %phi = phi i8 addrspace(1)* [%gep, %taken], [%sel, %entry] |
| call void @foo() |
| %res = load i8, i8 addrspace(1)* %phi |
| ret i8 %res |
| } |
| |
| ; An example of a non-trivial subgraph computing base pointers. |
| define i8 @test_subgraph2(i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2) gc "statepoint-example" { |
| ; CHECK-LABEL: @test_subgraph2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i8 addrspace(1)* [[A1:%.*]], i8 addrspace(1)* [[A2:%.*]] |
| ; CHECK-NEXT: [[IE:%.*]] = insertelement <2 x i8 addrspace(1)*> zeroinitializer, i8 addrspace(1)* [[SEL]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST:%.*]] = shufflevector <2 x i8 addrspace(1)*> [[IE]], <2 x i8 addrspace(1)*> [[IE]], <2 x i32> zeroinitializer |
| ; CHECK-NEXT: [[EE:%.*]] = extractelement <2 x i8 addrspace(1)*> [[BROADCAST]], i32 1 |
| ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[EE]]) ] |
| ; CHECK-NEXT: [[EE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0) |
| ; CHECK-NEXT: [[RES:%.*]] = load i8, i8 addrspace(1)* [[EE_RELOCATED]], align 1 |
| ; CHECK-NEXT: ret i8 [[RES]] |
| ; |
| entry: |
| %sel = select i1 %c, i8 addrspace(1)* %a1, i8 addrspace(1)* %a2 |
| %ie = insertelement <2 x i8 addrspace(1)*> zeroinitializer, i8 addrspace(1)* %sel, i64 0 |
| %broadcast = shufflevector <2 x i8 addrspace(1)*> %ie, <2 x i8 addrspace(1)*> %ie, <2 x i32> zeroinitializer |
| %ee = extractelement <2 x i8 addrspace(1)*> %broadcast, i32 1 |
| call void @foo() |
| %res = load i8, i8 addrspace(1)* %ee |
| ret i8 %res |
| } |
| |
| |
| declare void @foo() |