| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals |
| ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT |
| ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC |
| |
| declare noalias ptr @malloc(i64) allockind("alloc,uninitialized") allocsize(0) |
| |
| declare void @nocapture_func_frees_pointer(ptr nocapture) |
| |
| declare void @func_throws(...) |
| |
| declare void @sync_func(ptr %p) |
| |
| declare void @sync_will_return(ptr %p) willreturn nounwind |
| |
| declare void @no_sync_func(ptr nocapture %p) nofree nosync willreturn |
| |
| declare void @nofree_func(ptr nocapture %p) nofree nosync willreturn |
| |
| declare void @foo(ptr %p) |
| |
| declare void @foo_nounw(ptr %p) nounwind nofree |
| |
| declare void @usei8(i8) |
| declare void @usei8p(ptr nocapture) |
| |
| declare i32 @no_return_call() noreturn |
| |
| declare void @free(ptr nocapture) allockind("free") |
| |
| declare void @llvm.lifetime.start.p0(i64, ptr nocapture) nounwind |
| |
| ;. |
| ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal global ptr undef, align 4 |
| ;. |
| define void @h2s_value_simplify_interaction(i1 %c, ptr %A) { |
| ; CHECK-LABEL: define {{[^@]+}}@h2s_value_simplify_interaction |
| ; CHECK-SAME: (i1 [[C:%.*]], ptr nocapture nofree readnone [[A:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ADD:%.*]] = add i64 2, 2 |
| ; CHECK-NEXT: [[M:%.*]] = tail call noalias align 16 ptr @malloc(i64 noundef [[ADD]]) |
| ; CHECK-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]] |
| ; CHECK: t: |
| ; CHECK-NEXT: br i1 false, label [[DEAD:%.*]], label [[F2:%.*]] |
| ; CHECK: f: |
| ; CHECK-NEXT: br label [[J:%.*]] |
| ; CHECK: f2: |
| ; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[M]], align 16 |
| ; CHECK-NEXT: call void @usei8(i8 [[L]]) |
| ; CHECK-NEXT: call void @no_sync_func(ptr noalias nocapture nofree noundef nonnull align 16 dereferenceable(1) [[M]]) #[[ATTR11:[0-9]+]] |
| ; CHECK-NEXT: br label [[J]] |
| ; CHECK: dead: |
| ; CHECK-NEXT: unreachable |
| ; CHECK: j: |
| ; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[M]], [[F]] ], [ null, [[F2]] ] |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr nocapture nofree noundef align 16 [[PHI]]) #[[ATTR11]] |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %add = add i64 2, 2 |
| %m = tail call noalias align 16 ptr @malloc(i64 %add) |
| br i1 %c, label %t, label %f |
| |
| t: |
| br i1 false, label %dead, label %f2 |
| |
| f: |
| br label %j |
| |
| f2: |
| %l = load i8, ptr %m, align 1 |
| call void @usei8(i8 %l) |
| call void @no_sync_func(ptr noundef %m) nounwind |
| br label %j |
| |
| dead: |
| br label %j |
| |
| j: |
| %phi = phi ptr [ %m, %f ], [ null, %f2 ], [ %A, %dead ] |
| tail call void @no_sync_func(ptr noundef %phi) nounwind |
| ret void |
| } |
| |
| define void @nofree_arg_only(ptr %p1, ptr %p2) { |
| ; CHECK-LABEL: define {{[^@]+}}@nofree_arg_only |
| ; CHECK-SAME: (ptr nocapture nofree [[P1:%.*]], ptr nocapture [[P2:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: tail call void @free(ptr nocapture [[P2]]) |
| ; CHECK-NEXT: tail call void @nofree_func(ptr nocapture nofree [[P1]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| tail call void @free(ptr %p2) |
| tail call void @nofree_func(ptr %p1) |
| ret void |
| } |
| |
| ; TEST 1 - negative, pointer freed in another function. |
| |
| define void @test1() { |
| ; CHECK-LABEL: define {{[^@]+}}@test1() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 4) |
| ; CHECK-NEXT: tail call void @nocapture_func_frees_pointer(ptr noalias nocapture [[I]]) |
| ; CHECK-NEXT: tail call void (...) @func_throws() |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @nocapture_func_frees_pointer(ptr %i) |
| tail call void (...) @func_throws() |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 2 - negative, call to a sync function. |
| |
| define void @test2() { |
| ; CHECK-LABEL: define {{[^@]+}}@test2() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 4) |
| ; CHECK-NEXT: tail call void @sync_func(ptr [[I]]) |
| ; CHECK-NEXT: tail call void @free(ptr nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @sync_func(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 3 - 1 malloc, 1 free |
| |
| define void @test3() { |
| ; CHECK-LABEL: define {{[^@]+}}@test3() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @no_sync_func(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| define void @test3a(ptr %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test3a |
| ; CHECK-SAME: (ptr nocapture [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: tail call void @nofree_arg_only(ptr noalias nocapture nofree [[I_H2S]], ptr nocapture [[P]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @nofree_arg_only(ptr %i, ptr %p) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| declare noalias ptr @aligned_alloc(i64 allocalign, i64) allockind("alloc,uninitialized,aligned") allocsize(1) |
| |
| define void @test3b(ptr %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test3b |
| ; CHECK-SAME: (ptr nocapture [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 128, align 32 |
| ; CHECK-NEXT: tail call void @nofree_arg_only(ptr noalias nocapture nofree [[I_H2S]], ptr nocapture [[P]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @aligned_alloc(i64 32, i64 128) |
| tail call void @nofree_arg_only(ptr %i, ptr %p) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; leave alone non-constant alignments. |
| define void @test3c(i64 %alignment) { |
| ; CHECK-LABEL: define {{[^@]+}}@test3c |
| ; CHECK-SAME: (i64 [[ALIGNMENT:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @aligned_alloc(i64 [[ALIGNMENT]], i64 noundef 128) |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @aligned_alloc(i64 %alignment, i64 128) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; leave alone a constant-but-invalid alignment |
| define void @test3d(ptr %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test3d |
| ; CHECK-SAME: (ptr nocapture [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @aligned_alloc(i64 noundef 33, i64 noundef 128) |
| ; CHECK-NEXT: tail call void @nofree_arg_only(ptr noalias nocapture nofree [[I]], ptr nocapture [[P]]) |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @aligned_alloc(i64 33, i64 128) |
| tail call void @nofree_arg_only(ptr %i, ptr %p) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| declare noalias ptr @calloc(i64, i64) allockind("alloc,zeroed") allocsize(0,1) |
| |
| define void @test0() { |
| ; CHECK-LABEL: define {{[^@]+}}@test0() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 8, align 1 |
| ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr [[I_H2S]], i8 0, i64 8, i1 false) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @calloc(i64 2, i64 4) |
| tail call void @no_sync_func(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 4 |
| define void @test4() { |
| ; CHECK-LABEL: define {{[^@]+}}@test4() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: tail call void @nofree_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @nofree_func(ptr %i) |
| ret void |
| } |
| |
| ; TEST 5 - not all exit paths have a call to free, but all uses of malloc |
| ; are in nofree functions and are not captured |
| |
| define void @test5(i32 %arg, ptr %p) { |
| ; CHECK-LABEL: define {{[^@]+}}@test5 |
| ; CHECK-SAME: (i32 [[ARG:%.*]], ptr nocapture [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: [[I1:%.*]] = icmp eq i32 [[ARG]], 0 |
| ; CHECK-NEXT: br i1 [[I1]], label [[BB3:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: tail call void @nofree_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: br label [[BB4:%.*]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: tail call void @nofree_arg_only(ptr noalias nocapture nofree [[I_H2S]], ptr nocapture [[P]]) |
| ; CHECK-NEXT: br label [[BB4]] |
| ; CHECK: bb4: |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| %i1 = icmp eq i32 %arg, 0 |
| br i1 %i1, label %bb3, label %bb2 |
| |
| bb2: |
| tail call void @nofree_func(ptr %i) |
| br label %bb4 |
| |
| bb3: |
| tail call void @nofree_arg_only(ptr %i, ptr %p) |
| tail call void @free(ptr %i) |
| br label %bb4 |
| |
| bb4: |
| ret void |
| } |
| |
| ; TEST 6 - all exit paths have a call to free |
| |
| define void @test6(i32 %arg) { |
| ; CHECK-LABEL: define {{[^@]+}}@test6 |
| ; CHECK-SAME: (i32 [[ARG:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: [[I1:%.*]] = icmp eq i32 [[ARG]], 0 |
| ; CHECK-NEXT: br i1 [[I1]], label [[BB3:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: tail call void @nofree_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: br label [[BB4:%.*]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: br label [[BB4]] |
| ; CHECK: bb4: |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| %i1 = icmp eq i32 %arg, 0 |
| br i1 %i1, label %bb3, label %bb2 |
| |
| bb2: |
| tail call void @nofree_func(ptr %i) |
| tail call void @free(ptr %i) |
| br label %bb4 |
| |
| bb3: |
| tail call void @free(ptr %i) |
| br label %bb4 |
| |
| bb4: |
| ret void |
| } |
| |
| ; TEST 7 - free is dead. |
| |
| define void @test7() { |
| ; CHECK-LABEL: define {{[^@]+}}@test7() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: [[I1:%.*]] = tail call i32 @no_return_call() #[[ATTR4:[0-9]+]] |
| ; CHECK-NEXT: unreachable |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| %i1 = tail call i32 @no_return_call() |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 8 - Negative: bitcast pointer used in capture function |
| |
| define void @test8() { |
| ; CHECK-LABEL: define {{[^@]+}}@test8() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 4) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr nocapture nofree [[I]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I]], align 4 |
| ; CHECK-NEXT: tail call void @foo(ptr nonnull align 4 dereferenceable(4) [[I]]) |
| ; CHECK-NEXT: tail call void @free(ptr nocapture nonnull align 4 dereferenceable(4) [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @no_sync_func(ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @foo(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 9 - FIXME: malloc should be converted. |
| define void @test9() { |
| ; CHECK-LABEL: define {{[^@]+}}@test9() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 4) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr nocapture nofree [[I]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I]], align 4 |
| ; CHECK-NEXT: tail call void @foo_nounw(ptr nofree nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR11]] |
| ; CHECK-NEXT: tail call void @free(ptr nocapture nonnull align 4 dereferenceable(4) [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @no_sync_func(ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @foo_nounw(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 10 - 1 malloc, 1 free |
| |
| define i32 @test10() { |
| ; CHECK-LABEL: define {{[^@]+}}@test10() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: ret i32 [[I2]] |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @no_sync_func(ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @free(ptr %i) |
| ret i32 %i2 |
| } |
| |
| define i32 @test_lifetime() { |
| ; CHECK-LABEL: define {{[^@]+}}@test_lifetime() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I_H2S]]) |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 noundef 4, ptr noalias nocapture nofree nonnull align 4 dereferenceable(4) [[I_H2S]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: ret i32 [[I2]] |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @no_sync_func(ptr %i) |
| call void @llvm.lifetime.start.p0(i64 4, ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @free(ptr %i) |
| ret i32 %i2 |
| } |
| |
| ; TEST 11 |
| |
| define void @test11() { |
| ; CHECK-LABEL: define {{[^@]+}}@test11() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: tail call void @sync_will_return(ptr [[I_H2S]]) #[[ATTR11]] |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| tail call void @sync_will_return(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| ; TEST 12 |
| define i32 @irreducible_cfg(i32 %arg) { |
| ; CHECK-LABEL: define {{[^@]+}}@irreducible_cfg |
| ; CHECK-SAME: (i32 [[ARG:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: store i32 10, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: [[I2:%.*]] = icmp eq i32 [[ARG]], 1 |
| ; CHECK-NEXT: br i1 [[I2]], label [[BB3:%.*]], label [[BB5:%.*]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[I4:%.*]] = add nsw i32 [[ARG]], 5 |
| ; CHECK-NEXT: br label [[BB11:%.*]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: br label [[BB6:%.*]] |
| ; CHECK: bb6: |
| ; CHECK-NEXT: [[DOT0:%.*]] = phi i32 [ [[I12:%.*]], [[BB11]] ], [ 1, [[BB5]] ] |
| ; CHECK-NEXT: [[I7:%.*]] = load i32, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: [[I8:%.*]] = add nsw i32 [[I7]], -1 |
| ; CHECK-NEXT: store i32 [[I8]], ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: [[I9:%.*]] = icmp ne i32 [[I7]], 0 |
| ; CHECK-NEXT: br i1 [[I9]], label [[BB10:%.*]], label [[BB13:%.*]] |
| ; CHECK: bb10: |
| ; CHECK-NEXT: br label [[BB11]] |
| ; CHECK: bb11: |
| ; CHECK-NEXT: [[DOT1:%.*]] = phi i32 [ [[I4]], [[BB3]] ], [ [[DOT0]], [[BB10]] ] |
| ; CHECK-NEXT: [[I12]] = add nsw i32 [[DOT1]], 1 |
| ; CHECK-NEXT: br label [[BB6]] |
| ; CHECK: bb13: |
| ; CHECK-NEXT: [[I16:%.*]] = load i32, ptr [[I_H2S]], align 4 |
| ; CHECK-NEXT: ret i32 [[I16]] |
| ; |
| bb: |
| %i = call noalias ptr @malloc(i64 4) |
| store i32 10, ptr %i, align 4 |
| %i2 = icmp eq i32 %arg, 1 |
| br i1 %i2, label %bb3, label %bb5 |
| |
| bb3: |
| %i4 = add nsw i32 %arg, 5 |
| br label %bb11 |
| |
| bb5: |
| br label %bb6 |
| |
| bb6: |
| %.0 = phi i32 [ %i12, %bb11 ], [ 1, %bb5 ] |
| %i7 = load i32, ptr %i, align 4 |
| %i8 = add nsw i32 %i7, -1 |
| store i32 %i8, ptr %i, align 4 |
| %i9 = icmp ne i32 %i7, 0 |
| br i1 %i9, label %bb10, label %bb13 |
| |
| bb10: |
| br label %bb11 |
| |
| bb11: |
| %.1 = phi i32 [ %i4, %bb3 ], [ %.0, %bb10 ] |
| %i12 = add nsw i32 %.1, 1 |
| br label %bb6 |
| |
| bb13: |
| %i14 = load i32, ptr %i, align 4 |
| call void @free(ptr %i) |
| %i16 = load i32, ptr %i, align 4 |
| ret i32 %i16 |
| } |
| |
| |
| define i32 @malloc_in_loop(i32 %arg) { |
| ; CHECK-LABEL: define {{[^@]+}}@malloc_in_loop |
| ; CHECK-SAME: (i32 [[ARG:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[I1:%.*]] = alloca ptr, align 8 |
| ; CHECK-NEXT: [[I11:%.*]] = alloca i8, i32 0, align 8 |
| ; CHECK-NEXT: store i32 [[ARG]], ptr [[I]], align 4 |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: [[I3:%.*]] = load i32, ptr [[I]], align 4 |
| ; CHECK-NEXT: [[I4:%.*]] = add nsw i32 [[I3]], -1 |
| ; CHECK-NEXT: store i32 [[I4]], ptr [[I]], align 4 |
| ; CHECK-NEXT: [[I5:%.*]] = icmp sgt i32 [[I4]], 0 |
| ; CHECK-NEXT: br i1 [[I5]], label [[BB6:%.*]], label [[BB9:%.*]] |
| ; CHECK: bb6: |
| ; CHECK-NEXT: [[I7_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: br label [[BB2]] |
| ; CHECK: bb9: |
| ; CHECK-NEXT: ret i32 5 |
| ; |
| bb: |
| %i = alloca i32, align 4 |
| %i1 = alloca ptr, align 8 |
| store i32 %arg, ptr %i, align 4 |
| br label %bb2 |
| |
| bb2: |
| %i3 = load i32, ptr %i, align 4 |
| %i4 = add nsw i32 %i3, -1 |
| store i32 %i4, ptr %i, align 4 |
| %i5 = icmp sgt i32 %i4, 0 |
| br i1 %i5, label %bb6, label %bb9 |
| |
| bb6: |
| %i7 = call noalias ptr @malloc(i64 4) |
| store i32 1, ptr %i7, align 8 |
| br label %bb2 |
| |
| bb9: |
| ret i32 5 |
| } |
| |
| ; Malloc/Calloc too large |
| define i32 @test13() { |
| ; CHECK-LABEL: define {{[^@]+}}@test13() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 256) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I]], align 4 |
| ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr [[I]], align 4 |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture nonnull align 4 dereferenceable(4) [[I]]) |
| ; CHECK-NEXT: ret i32 [[I2]] |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 256) |
| tail call void @no_sync_func(ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @free(ptr %i) |
| ret i32 %i2 |
| } |
| |
| define i32 @test_sle() { |
| ; CHECK-LABEL: define {{[^@]+}}@test_sle() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef -1) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I]], align 4 |
| ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr [[I]], align 4 |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture nonnull align 4 dereferenceable(4) [[I]]) |
| ; CHECK-NEXT: ret i32 [[I2]] |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 -1) |
| tail call void @no_sync_func(ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @free(ptr %i) |
| ret i32 %i2 |
| } |
| |
| define i32 @test_overflow() { |
| ; CHECK-LABEL: define {{[^@]+}}@test_overflow() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @calloc(i64 noundef 65537, i64 noundef 65537) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I]]) |
| ; CHECK-NEXT: store i32 10, ptr [[I]], align 4 |
| ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr [[I]], align 4 |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture nonnull align 4 dereferenceable(4) [[I]]) |
| ; CHECK-NEXT: ret i32 [[I2]] |
| ; |
| bb: |
| %i = tail call noalias ptr @calloc(i64 65537, i64 65537) |
| tail call void @no_sync_func(ptr %i) |
| store i32 10, ptr %i, align 4 |
| %i2 = load i32, ptr %i, align 4 |
| tail call void @free(ptr %i) |
| ret i32 %i2 |
| } |
| |
| define void @test14() { |
| ; CHECK-LABEL: define {{[^@]+}}@test14() { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @calloc(i64 noundef 64, i64 noundef 4) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I]]) |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @calloc(i64 64, i64 4) |
| tail call void @no_sync_func(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| define void @test15(i64 %S) { |
| ; CHECK-LABEL: define {{[^@]+}}@test15 |
| ; CHECK-SAME: (i64 [[S:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 [[S]]) |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree [[I]]) |
| ; CHECK-NEXT: tail call void @free(ptr noalias nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 %S) |
| tail call void @no_sync_func(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| define void @test16a(i8 %v, ptr %P) { |
| ; CHECK-LABEL: define {{[^@]+}}@test16a |
| ; CHECK-SAME: (i8 [[V:%.*]], ptr nocapture nofree readnone [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: store i8 [[V]], ptr [[I_H2S]], align 1 |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr noalias nocapture nofree noundef nonnull dereferenceable(1) [[I_H2S]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| store i8 %v, ptr %i, align 1 |
| tail call void @no_sync_func(ptr %i) |
| tail call void @free(ptr nonnull dereferenceable(1) %i) |
| ret void |
| } |
| |
| define void @test16b(i8 %v, ptr %P) { |
| ; CHECK-LABEL: define {{[^@]+}}@test16b |
| ; CHECK-SAME: (i8 [[V:%.*]], ptr nocapture nofree writeonly [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 4) |
| ; CHECK-NEXT: store ptr [[I]], ptr [[P]], align 8 |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr nocapture nofree [[I]]) |
| ; CHECK-NEXT: tail call void @free(ptr nocapture [[I]]) |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| store ptr %i, ptr %P, align 8 |
| tail call void @no_sync_func(ptr %i) |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| define void @test16c(i8 %v, ptr %P) { |
| ; CHECK-LABEL: define {{[^@]+}}@test16c |
| ; CHECK-SAME: (i8 [[V:%.*]], ptr nocapture nofree writeonly [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: store ptr [[I_H2S]], ptr [[P]], align 8 |
| ; CHECK-NEXT: tail call void @no_sync_func(ptr nocapture nofree [[I_H2S]]) #[[ATTR11]] |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| store ptr %i, ptr %P, align 8 |
| tail call void @no_sync_func(ptr %i) nounwind |
| tail call void @free(ptr %i) |
| ret void |
| } |
| |
| define void @test16d(i8 %v, ptr %P) { |
| ; CHECK-LABEL: define {{[^@]+}}@test16d |
| ; CHECK-SAME: (i8 [[V:%.*]], ptr nocapture nofree writeonly [[P:%.*]]) { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = tail call noalias ptr @malloc(i64 noundef 4) |
| ; CHECK-NEXT: store ptr [[I]], ptr [[P]], align 8 |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| store ptr %i, ptr %P, align 8 |
| ret void |
| } |
| |
| @G = internal global ptr undef, align 4 |
| define void @test16e(i8 %v) norecurse { |
| ; CHECK: Function Attrs: norecurse |
| ; CHECK-LABEL: define {{[^@]+}}@test16e |
| ; CHECK-SAME: (i8 [[V:%.*]]) #[[ATTR9:[0-9]+]] { |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I_H2S:%.*]] = alloca i8, i64 4, align 1 |
| ; CHECK-NEXT: store ptr [[I_H2S]], ptr @G, align 8 |
| ; CHECK-NEXT: call void @usei8p(ptr nocapture nofree [[I_H2S]]) #[[ATTR12:[0-9]+]] |
| ; CHECK-NEXT: ret void |
| ; |
| bb: |
| %i = tail call noalias ptr @malloc(i64 4) |
| store ptr %i, ptr @G, align 8 |
| %i1 = load ptr, ptr @G, align 8 |
| call void @usei8p(ptr nocapture nofree %i1) nocallback nosync nounwind willreturn |
| call void @free(ptr %i) |
| ret void |
| } |
| |
| ;. |
| ; CHECK: attributes #[[ATTR0:[0-9]+]] = { allockind("alloc,uninitialized") allocsize(0) } |
| ; CHECK: attributes #[[ATTR1:[0-9]+]] = { nounwind willreturn } |
| ; CHECK: attributes #[[ATTR2:[0-9]+]] = { nofree nosync willreturn } |
| ; CHECK: attributes #[[ATTR3:[0-9]+]] = { nofree nounwind } |
| ; CHECK: attributes #[[ATTR4]] = { noreturn } |
| ; CHECK: attributes #[[ATTR5:[0-9]+]] = { allockind("free") } |
| ; CHECK: attributes #[[ATTR6:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) } |
| ; CHECK: attributes #[[ATTR7:[0-9]+]] = { allockind("alloc,uninitialized,aligned") allocsize(1) } |
| ; CHECK: attributes #[[ATTR8:[0-9]+]] = { allockind("alloc,zeroed") allocsize(0,1) } |
| ; CHECK: attributes #[[ATTR9]] = { norecurse } |
| ; CHECK: attributes #[[ATTR10:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) } |
| ; CHECK: attributes #[[ATTR11]] = { nounwind } |
| ; CHECK: attributes #[[ATTR12]] = { nocallback nosync nounwind willreturn } |
| ;. |
| ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line: |
| ; CGSCC: {{.*}} |
| ; TUNIT: {{.*}} |
