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llvm-for-llvmta/test/Transforms/Attributor/heap_to_stack.ll

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
declare noalias i8* @malloc(i64)
declare void @nocapture_func_frees_pointer(i8* nocapture)
declare void @func_throws(...)
declare void @sync_func(i8* %p)
declare void @sync_will_return(i8* %p) willreturn nounwind
declare void @no_sync_func(i8* nocapture %p) nofree nosync willreturn
declare void @nofree_func(i8* nocapture %p) nofree nosync willreturn
declare void @foo(i32* %p)
declare void @foo_nounw(i32* %p) nounwind nofree
declare i32 @no_return_call() noreturn
declare void @free(i8* nocapture)
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) nounwind
define void @nofree_arg_only(i8* %p1, i8* %p2) {
; CHECK-LABEL: define {{[^@]+}}@nofree_arg_only
; CHECK-SAME: (i8* nocapture nofree [[P1:%.*]], i8* nocapture [[P2:%.*]]) {
; CHECK-NEXT: tail call void @free(i8* nocapture [[P2]])
; CHECK-NEXT: tail call void @nofree_func(i8* nocapture nofree [[P1]])
; CHECK-NEXT: ret void
;
tail call void @free(i8* %p2)
tail call void @nofree_func(i8* %p1)
ret void
}
; TEST 1 - negative, pointer freed in another function.
define void @test1() {
; CHECK-LABEL: define {{[^@]+}}@test1() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: tail call void @nocapture_func_frees_pointer(i8* noalias nocapture [[TMP1]])
; CHECK-NEXT: tail call void (...) @func_throws()
; CHECK-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @nocapture_func_frees_pointer(i8* %1)
tail call void (...) @func_throws()
tail call void @free(i8* %1)
ret void
}
; TEST 2 - negative, call to a sync function.
define void @test2() {
; CHECK-LABEL: define {{[^@]+}}@test2() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: tail call void @sync_func(i8* [[TMP1]])
; CHECK-NEXT: tail call void @free(i8* nocapture [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @sync_func(i8* %1)
tail call void @free(i8* %1)
ret void
}
; TEST 3 - 1 malloc, 1 free
define void @test3() {
; IS________OPM-LABEL: define {{[^@]+}}@test3() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test3() {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* %1)
ret void
}
define void @test3a(i8* %p) {
; IS________OPM-LABEL: define {{[^@]+}}@test3a
; IS________OPM-SAME: (i8* nocapture [[P:%.*]]) {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @nofree_arg_only(i8* nocapture nofree [[TMP1]], i8* nocapture [[P]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test3a
; IS________NPM-SAME: (i8* nocapture [[P:%.*]]) {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: tail call void @nofree_arg_only(i8* noalias nocapture nofree [[TMP1]], i8* nocapture [[P]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @nofree_arg_only(i8* %1, i8* %p)
tail call void @free(i8* %1)
ret void
}
declare noalias i8* @aligned_alloc(i64, i64)
define void @test3b(i8* %p) {
; IS________OPM-LABEL: define {{[^@]+}}@test3b
; IS________OPM-SAME: (i8* nocapture [[P:%.*]]) {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @aligned_alloc(i64 noundef 32, i64 noundef 128)
; IS________OPM-NEXT: tail call void @nofree_arg_only(i8* nocapture nofree [[TMP1]], i8* nocapture [[P]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test3b
; IS________NPM-SAME: (i8* nocapture [[P:%.*]]) {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 128, align 32
; IS________NPM-NEXT: tail call void @nofree_arg_only(i8* noalias nocapture nofree [[TMP1]], i8* nocapture [[P]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @aligned_alloc(i64 32, i64 128)
tail call void @nofree_arg_only(i8* %1, i8* %p)
tail call void @free(i8* %1)
ret void
}
; leave alone non-constant alignments.
define void @test3c(i64 %alignment) {
; CHECK-LABEL: define {{[^@]+}}@test3c
; CHECK-SAME: (i64 [[ALIGNMENT:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @aligned_alloc(i64 [[ALIGNMENT]], i64 noundef 128)
; CHECK-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @aligned_alloc(i64 %alignment, i64 128)
tail call void @free(i8* %1)
ret void
}
declare noalias i8* @calloc(i64, i64)
define void @test0() {
; IS________OPM-LABEL: define {{[^@]+}}@test0() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @calloc(i64 noundef 2, i64 noundef 4)
; IS________OPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test0() {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 8, align 1
; IS________NPM-NEXT: [[CALLOC_BC:%.*]] = bitcast i8* [[TMP1]] to i8*
; IS________NPM-NEXT: call void @llvm.memset.p0i8.i64(i8* [[CALLOC_BC]], i8 0, i64 8, i1 false)
; IS________NPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @calloc(i64 2, i64 4)
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* %1)
ret void
}
; TEST 4
define void @test4() {
; IS________OPM-LABEL: define {{[^@]+}}@test4() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @nofree_func(i8* noalias nocapture nofree [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test4() {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: tail call void @nofree_func(i8* noalias nocapture nofree [[TMP1]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @nofree_func(i8* %1)
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, i8* %p) {
; IS________OPM-LABEL: define {{[^@]+}}@test5
; IS________OPM-SAME: (i32 [[TMP0:%.*]], i8* nocapture [[P:%.*]]) {
; IS________OPM-NEXT: [[TMP2:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP0]], 0
; IS________OPM-NEXT: br i1 [[TMP3]], label [[TMP5:%.*]], label [[TMP4:%.*]]
; IS________OPM: 4:
; IS________OPM-NEXT: tail call void @nofree_func(i8* noalias nocapture nofree [[TMP2]])
; IS________OPM-NEXT: br label [[TMP6:%.*]]
; IS________OPM: 5:
; IS________OPM-NEXT: tail call void @nofree_arg_only(i8* nocapture nofree [[TMP2]], i8* nocapture [[P]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP2]])
; IS________OPM-NEXT: br label [[TMP6]]
; IS________OPM: 6:
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test5
; IS________NPM-SAME: (i32 [[TMP0:%.*]], i8* nocapture [[P:%.*]]) {
; IS________NPM-NEXT: [[TMP2:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP0]], 0
; IS________NPM-NEXT: br i1 [[TMP3]], label [[TMP5:%.*]], label [[TMP4:%.*]]
; IS________NPM: 4:
; IS________NPM-NEXT: tail call void @nofree_func(i8* noalias nocapture nofree [[TMP2]])
; IS________NPM-NEXT: br label [[TMP6:%.*]]
; IS________NPM: 5:
; IS________NPM-NEXT: tail call void @nofree_arg_only(i8* noalias nocapture nofree [[TMP2]], i8* nocapture [[P]])
; IS________NPM-NEXT: br label [[TMP6]]
; IS________NPM: 6:
; IS________NPM-NEXT: ret void
;
%2 = tail call noalias i8* @malloc(i64 4)
%3 = icmp eq i32 %0, 0
br i1 %3, label %5, label %4
4: ; preds = %1
tail call void @nofree_func(i8* %2)
br label %6
5: ; preds = %1
tail call void @nofree_arg_only(i8* %2, i8* %p)
tail call void @free(i8* %2)
br label %6
6: ; preds = %5, %4
ret void
}
; TEST 6 - all exit paths have a call to free
define void @test6(i32) {
; IS________OPM-LABEL: define {{[^@]+}}@test6
; IS________OPM-SAME: (i32 [[TMP0:%.*]]) {
; IS________OPM-NEXT: [[TMP2:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP0]], 0
; IS________OPM-NEXT: br i1 [[TMP3]], label [[TMP5:%.*]], label [[TMP4:%.*]]
; IS________OPM: 4:
; IS________OPM-NEXT: tail call void @nofree_func(i8* noalias nocapture nofree [[TMP2]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP2]])
; IS________OPM-NEXT: br label [[TMP6:%.*]]
; IS________OPM: 5:
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture [[TMP2]])
; IS________OPM-NEXT: br label [[TMP6]]
; IS________OPM: 6:
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test6
; IS________NPM-SAME: (i32 [[TMP0:%.*]]) {
; IS________NPM-NEXT: [[TMP2:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP0]], 0
; IS________NPM-NEXT: br i1 [[TMP3]], label [[TMP5:%.*]], label [[TMP4:%.*]]
; IS________NPM: 4:
; IS________NPM-NEXT: tail call void @nofree_func(i8* noalias nocapture nofree [[TMP2]])
; IS________NPM-NEXT: br label [[TMP6:%.*]]
; IS________NPM: 5:
; IS________NPM-NEXT: br label [[TMP6]]
; IS________NPM: 6:
; IS________NPM-NEXT: ret void
;
%2 = tail call noalias i8* @malloc(i64 4)
%3 = icmp eq i32 %0, 0
br i1 %3, label %5, label %4
4: ; preds = %1
tail call void @nofree_func(i8* %2)
tail call void @free(i8* %2)
br label %6
5: ; preds = %1
tail call void @free(i8* %2)
br label %6
6: ; preds = %5, %4
ret void
}
; TEST 7 - free is dead.
define void @test7() {
; IS________OPM: Function Attrs: noreturn
; IS________OPM-LABEL: define {{[^@]+}}@test7
; IS________OPM-SAME: () [[ATTR3:#.*]] {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[TMP2:%.*]] = tail call i32 @no_return_call() [[ATTR3]]
; IS________OPM-NEXT: unreachable
;
; IS________NPM: Function Attrs: noreturn
; IS________NPM-LABEL: define {{[^@]+}}@test7
; IS________NPM-SAME: () [[ATTR3:#.*]] {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: [[TMP2:%.*]] = tail call i32 @no_return_call() [[ATTR3]]
; IS________NPM-NEXT: unreachable
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call i32 @no_return_call()
tail call void @free(i8* %1)
ret void
}
; TEST 8 - Negative: bitcast pointer used in capture function
define void @test8() {
; CHECK-LABEL: define {{[^@]+}}@test8() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; CHECK-NEXT: store i32 10, i32* [[TMP2]], align 4
; CHECK-NEXT: tail call void @foo(i32* align 4 [[TMP2]])
; CHECK-NEXT: tail call void @free(i8* nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @foo(i32* %2)
tail call void @free(i8* %1)
ret void
}
; TEST 9 - FIXME: malloc should be converted.
define void @test9() {
; IS________OPM-LABEL: define {{[^@]+}}@test9() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________OPM-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; IS________OPM-NEXT: store i32 10, i32* [[TMP2]], align 4
; IS________OPM-NEXT: tail call void @foo_nounw(i32* nofree align 4 [[TMP2]]) [[ATTR5:#.*]]
; IS________OPM-NEXT: tail call void @free(i8* nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test9() {
; IS________NPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________NPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________NPM-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; IS________NPM-NEXT: store i32 10, i32* [[TMP2]], align 4
; IS________NPM-NEXT: tail call void @foo_nounw(i32* nofree align 4 [[TMP2]]) [[ATTR6:#.*]]
; IS________NPM-NEXT: tail call void @free(i8* nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @foo_nounw(i32* %2)
tail call void @free(i8* %1)
ret void
}
; TEST 10 - 1 malloc, 1 free
define i32 @test10() {
; IS________OPM-LABEL: define {{[^@]+}}@test10() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________OPM-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; IS________OPM-NEXT: store i32 10, i32* [[TMP2]], align 4
; IS________OPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; IS________OPM-NEXT: ret i32 [[TMP3]]
;
; IS________NPM-LABEL: define {{[^@]+}}@test10() {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________NPM-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; IS________NPM-NEXT: store i32 10, i32* [[TMP2]], align 4
; IS________NPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS________NPM-NEXT: ret i32 [[TMP3]]
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @free(i8* %1)
ret i32 %3
}
define i32 @test_lifetime() {
; IS________OPM-LABEL: define {{[^@]+}}@test_lifetime() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________OPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noalias nocapture nofree nonnull align 4 dereferenceable(4) [[TMP1]])
; IS________OPM-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; IS________OPM-NEXT: store i32 10, i32* [[TMP2]], align 4
; IS________OPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; IS________OPM-NEXT: ret i32 [[TMP3]]
;
; IS________NPM-LABEL: define {{[^@]+}}@test_lifetime() {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; IS________NPM-NEXT: call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noalias nocapture nofree nonnull align 4 dereferenceable(4) [[TMP1]])
; IS________NPM-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; IS________NPM-NEXT: store i32 10, i32* [[TMP2]], align 4
; IS________NPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS________NPM-NEXT: ret i32 [[TMP3]]
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @no_sync_func(i8* %1)
call void @llvm.lifetime.start.p0i8(i64 4, i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @free(i8* %1)
ret i32 %3
}
; TEST 11
define void @test11() {
; IS________OPM-LABEL: define {{[^@]+}}@test11() {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: tail call void @sync_will_return(i8* [[TMP1]]) [[ATTR5]]
; IS________OPM-NEXT: tail call void @free(i8* nocapture [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test11() {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: tail call void @sync_will_return(i8* [[TMP1]]) [[ATTR6]]
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
tail call void @sync_will_return(i8* %1)
tail call void @free(i8* %1)
ret void
}
; TEST 12
define i32 @irreducible_cfg(i32 %0) {
; IS________OPM-LABEL: define {{[^@]+}}@irreducible_cfg
; IS________OPM-SAME: (i32 [[TMP0:%.*]]) {
; IS________OPM-NEXT: [[TMP2:%.*]] = call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[TMP3:%.*]] = bitcast i8* [[TMP2]] to i32*
; IS________OPM-NEXT: store i32 10, i32* [[TMP3]], align 4
; IS________OPM-NEXT: [[TMP4:%.*]] = icmp eq i32 [[TMP0]], 1
; IS________OPM-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP7:%.*]]
; IS________OPM: 5:
; IS________OPM-NEXT: [[TMP6:%.*]] = add nsw i32 [[TMP0]], 5
; IS________OPM-NEXT: br label [[TMP13:%.*]]
; IS________OPM: 7:
; IS________OPM-NEXT: br label [[TMP8:%.*]]
; IS________OPM: 8:
; IS________OPM-NEXT: [[DOT0:%.*]] = phi i32 [ [[TMP14:%.*]], [[TMP13]] ], [ 1, [[TMP7]] ]
; IS________OPM-NEXT: [[TMP9:%.*]] = load i32, i32* [[TMP3]], align 4
; IS________OPM-NEXT: [[TMP10:%.*]] = add nsw i32 [[TMP9]], -1
; IS________OPM-NEXT: store i32 [[TMP10]], i32* [[TMP3]], align 4
; IS________OPM-NEXT: [[TMP11:%.*]] = icmp ne i32 [[TMP9]], 0
; IS________OPM-NEXT: br i1 [[TMP11]], label [[TMP12:%.*]], label [[TMP15:%.*]]
; IS________OPM: 12:
; IS________OPM-NEXT: br label [[TMP13]]
; IS________OPM: 13:
; IS________OPM-NEXT: [[DOT1:%.*]] = phi i32 [ [[TMP6]], [[TMP5]] ], [ [[DOT0]], [[TMP12]] ]
; IS________OPM-NEXT: [[TMP14]] = add nsw i32 [[DOT1]], 1
; IS________OPM-NEXT: br label [[TMP8]]
; IS________OPM: 15:
; IS________OPM-NEXT: [[TMP16:%.*]] = load i32, i32* [[TMP3]], align 4
; IS________OPM-NEXT: [[TMP17:%.*]] = bitcast i32* [[TMP3]] to i8*
; IS________OPM-NEXT: call void @free(i8* nocapture [[TMP17]])
; IS________OPM-NEXT: [[TMP18:%.*]] = load i32, i32* [[TMP3]], align 4
; IS________OPM-NEXT: ret i32 [[TMP18]]
;
; IS________NPM-LABEL: define {{[^@]+}}@irreducible_cfg
; IS________NPM-SAME: (i32 [[TMP0:%.*]]) {
; IS________NPM-NEXT: [[TMP2:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: [[TMP3:%.*]] = bitcast i8* [[TMP2]] to i32*
; IS________NPM-NEXT: store i32 10, i32* [[TMP3]], align 4
; IS________NPM-NEXT: [[TMP4:%.*]] = icmp eq i32 [[TMP0]], 1
; IS________NPM-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP7:%.*]]
; IS________NPM: 5:
; IS________NPM-NEXT: [[TMP6:%.*]] = add nsw i32 [[TMP0]], 5
; IS________NPM-NEXT: br label [[TMP13:%.*]]
; IS________NPM: 7:
; IS________NPM-NEXT: br label [[TMP8:%.*]]
; IS________NPM: 8:
; IS________NPM-NEXT: [[DOT0:%.*]] = phi i32 [ [[TMP14:%.*]], [[TMP13]] ], [ 1, [[TMP7]] ]
; IS________NPM-NEXT: [[TMP9:%.*]] = load i32, i32* [[TMP3]], align 4
; IS________NPM-NEXT: [[TMP10:%.*]] = add nsw i32 [[TMP9]], -1
; IS________NPM-NEXT: store i32 [[TMP10]], i32* [[TMP3]], align 4
; IS________NPM-NEXT: [[TMP11:%.*]] = icmp ne i32 [[TMP9]], 0
; IS________NPM-NEXT: br i1 [[TMP11]], label [[TMP12:%.*]], label [[TMP15:%.*]]
; IS________NPM: 12:
; IS________NPM-NEXT: br label [[TMP13]]
; IS________NPM: 13:
; IS________NPM-NEXT: [[DOT1:%.*]] = phi i32 [ [[TMP6]], [[TMP5]] ], [ [[DOT0]], [[TMP12]] ]
; IS________NPM-NEXT: [[TMP14]] = add nsw i32 [[DOT1]], 1
; IS________NPM-NEXT: br label [[TMP8]]
; IS________NPM: 15:
; IS________NPM-NEXT: [[TMP16:%.*]] = bitcast i32* [[TMP3]] to i8*
; IS________NPM-NEXT: [[TMP17:%.*]] = load i32, i32* [[TMP3]], align 4
; IS________NPM-NEXT: ret i32 [[TMP17]]
;
%2 = call noalias i8* @malloc(i64 4)
%3 = bitcast i8* %2 to i32*
store i32 10, i32* %3, align 4
%4 = icmp eq i32 %0, 1
br i1 %4, label %5, label %7
5: ; preds = %1
%6 = add nsw i32 %0, 5
br label %13
7: ; preds = %1
br label %8
8: ; preds = %13, %7
%.0 = phi i32 [ %14, %13 ], [ 1, %7 ]
%9 = load i32, i32* %3, align 4
%10 = add nsw i32 %9, -1
store i32 %10, i32* %3, align 4
%11 = icmp ne i32 %9, 0
br i1 %11, label %12, label %15
12: ; preds = %8
br label %13
13: ; preds = %12, %5
%.1 = phi i32 [ %6, %5 ], [ %.0, %12 ]
%14 = add nsw i32 %.1, 1
br label %8
15: ; preds = %8
%16 = load i32, i32* %3, align 4
%17 = bitcast i32* %3 to i8*
call void @free(i8* %17)
%18 = load i32, i32* %3, align 4
ret i32 %18
}
define i32 @malloc_in_loop(i32 %0) {
; IS________OPM-LABEL: define {{[^@]+}}@malloc_in_loop
; IS________OPM-SAME: (i32 [[TMP0:%.*]]) {
; IS________OPM-NEXT: [[TMP2:%.*]] = alloca i32, align 4
; IS________OPM-NEXT: [[TMP3:%.*]] = alloca i32*, align 8
; IS________OPM-NEXT: store i32 [[TMP0]], i32* [[TMP2]], align 4
; IS________OPM-NEXT: br label [[TMP4:%.*]]
; IS________OPM: 4:
; IS________OPM-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP2]], align 4
; IS________OPM-NEXT: [[TMP6:%.*]] = add nsw i32 [[TMP5]], -1
; IS________OPM-NEXT: store i32 [[TMP6]], i32* [[TMP2]], align 4
; IS________OPM-NEXT: [[TMP7:%.*]] = icmp sgt i32 [[TMP6]], 0
; IS________OPM-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP11:%.*]]
; IS________OPM: 8:
; IS________OPM-NEXT: [[TMP9:%.*]] = call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: [[TMP10:%.*]] = bitcast i8* [[TMP9]] to i32*
; IS________OPM-NEXT: store i32 1, i32* [[TMP10]], align 8
; IS________OPM-NEXT: br label [[TMP4]]
; IS________OPM: 11:
; IS________OPM-NEXT: ret i32 5
;
; IS________NPM-LABEL: define {{[^@]+}}@malloc_in_loop
; IS________NPM-SAME: (i32 [[TMP0:%.*]]) {
; IS________NPM-NEXT: [[TMP2:%.*]] = alloca i32, align 4
; IS________NPM-NEXT: [[TMP3:%.*]] = alloca i32*, align 8
; IS________NPM-NEXT: store i32 [[TMP0]], i32* [[TMP2]], align 4
; IS________NPM-NEXT: br label [[TMP4:%.*]]
; IS________NPM: 4:
; IS________NPM-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP2]], align 4
; IS________NPM-NEXT: [[TMP6:%.*]] = add nsw i32 [[TMP5]], -1
; IS________NPM-NEXT: store i32 [[TMP6]], i32* [[TMP2]], align 4
; IS________NPM-NEXT: [[TMP7:%.*]] = icmp sgt i32 [[TMP6]], 0
; IS________NPM-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP11:%.*]]
; IS________NPM: 8:
; IS________NPM-NEXT: [[TMP9:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: [[TMP10:%.*]] = bitcast i8* [[TMP9]] to i32*
; IS________NPM-NEXT: store i32 1, i32* [[TMP10]], align 8
; IS________NPM-NEXT: br label [[TMP4]]
; IS________NPM: 11:
; IS________NPM-NEXT: ret i32 5
;
%2 = alloca i32, align 4
%3 = alloca i32*, align 8
store i32 %0, i32* %2, align 4
br label %4
4: ; preds = %8, %1
%5 = load i32, i32* %2, align 4
%6 = add nsw i32 %5, -1
store i32 %6, i32* %2, align 4
%7 = icmp sgt i32 %6, 0
br i1 %7, label %8, label %11
8: ; preds = %4
%9 = call noalias i8* @malloc(i64 4)
%10 = bitcast i8* %9 to i32*
store i32 1, i32* %10, align 8
br label %4
11: ; preds = %4
ret i32 5
}
; Malloc/Calloc too large
define i32 @test13() {
; CHECK-LABEL: define {{[^@]+}}@test13() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 256)
; CHECK-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; CHECK-NEXT: store i32 10, i32* [[TMP2]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; CHECK-NEXT: tail call void @free(i8* noalias nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; CHECK-NEXT: ret i32 [[TMP3]]
;
%1 = tail call noalias i8* @malloc(i64 256)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @free(i8* %1)
ret i32 %3
}
define i32 @test_sle() {
; CHECK-LABEL: define {{[^@]+}}@test_sle() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef -1)
; CHECK-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; CHECK-NEXT: store i32 10, i32* [[TMP2]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; CHECK-NEXT: tail call void @free(i8* noalias nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; CHECK-NEXT: ret i32 [[TMP3]]
;
%1 = tail call noalias i8* @malloc(i64 -1)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @free(i8* %1)
ret i32 %3
}
define i32 @test_overflow() {
; CHECK-LABEL: define {{[^@]+}}@test_overflow() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @calloc(i64 noundef 65537, i64 noundef 65537)
; CHECK-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to i32*
; CHECK-NEXT: store i32 10, i32* [[TMP2]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; CHECK-NEXT: tail call void @free(i8* noalias nocapture nonnull align 4 dereferenceable(4) [[TMP1]])
; CHECK-NEXT: ret i32 [[TMP3]]
;
%1 = tail call noalias i8* @calloc(i64 65537, i64 65537)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
%3 = load i32, i32* %2
tail call void @free(i8* %1)
ret i32 %3
}
define void @test14() {
; CHECK-LABEL: define {{[^@]+}}@test14() {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @calloc(i64 noundef 64, i64 noundef 4)
; CHECK-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; CHECK-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @calloc(i64 64, i64 4)
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* %1)
ret void
}
define void @test15(i64 %S) {
; CHECK-LABEL: define {{[^@]+}}@test15
; CHECK-SAME: (i64 [[S:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 [[S]])
; CHECK-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree [[TMP1]])
; CHECK-NEXT: tail call void @free(i8* noalias nocapture [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 %S)
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* %1)
ret void
}
define void @test16a(i8 %v, i8** %P) {
; IS________OPM-LABEL: define {{[^@]+}}@test16a
; IS________OPM-SAME: (i8 [[V:%.*]], i8** nocapture nofree readnone [[P:%.*]]) {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: store i8 [[V]], i8* [[TMP1]], align 1
; IS________OPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree nonnull dereferenceable(1) [[TMP1]])
; IS________OPM-NEXT: tail call void @free(i8* noalias nocapture nonnull dereferenceable(1) [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test16a
; IS________NPM-SAME: (i8 [[V:%.*]], i8** nocapture nofree readnone [[P:%.*]]) {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: store i8 [[V]], i8* [[TMP1]], align 1
; IS________NPM-NEXT: tail call void @no_sync_func(i8* noalias nocapture nofree nonnull dereferenceable(1) [[TMP1]])
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
store i8 %v, i8* %1
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* nonnull dereferenceable(1) %1)
ret void
}
define void @test16b(i8 %v, i8** %P) {
; CHECK-LABEL: define {{[^@]+}}@test16b
; CHECK-SAME: (i8 [[V:%.*]], i8** nocapture writeonly [[P:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: store i8* [[TMP1]], i8** [[P]], align 8
; CHECK-NEXT: tail call void @no_sync_func(i8* nocapture nofree [[TMP1]])
; CHECK-NEXT: tail call void @free(i8* nocapture [[TMP1]])
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
store i8* %1, i8** %P
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* %1)
ret void
}
define void @test16c(i8 %v, i8** %P) {
; IS________OPM-LABEL: define {{[^@]+}}@test16c
; IS________OPM-SAME: (i8 [[V:%.*]], i8** nocapture writeonly [[P:%.*]]) {
; IS________OPM-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; IS________OPM-NEXT: store i8* [[TMP1]], i8** [[P]], align 8
; IS________OPM-NEXT: tail call void @no_sync_func(i8* nocapture nofree [[TMP1]]) [[ATTR5]]
; IS________OPM-NEXT: tail call void @free(i8* nocapture [[TMP1]])
; IS________OPM-NEXT: ret void
;
; IS________NPM-LABEL: define {{[^@]+}}@test16c
; IS________NPM-SAME: (i8 [[V:%.*]], i8** nocapture writeonly [[P:%.*]]) {
; IS________NPM-NEXT: [[TMP1:%.*]] = alloca i8, i64 4, align 1
; IS________NPM-NEXT: store i8* [[TMP1]], i8** [[P]], align 8
; IS________NPM-NEXT: tail call void @no_sync_func(i8* nocapture nofree [[TMP1]]) [[ATTR6]]
; IS________NPM-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
store i8* %1, i8** %P
tail call void @no_sync_func(i8* %1) nounwind
tail call void @free(i8* %1)
ret void
}
define void @test16d(i8 %v, i8** %P) {
; CHECK-LABEL: define {{[^@]+}}@test16d
; CHECK-SAME: (i8 [[V:%.*]], i8** nocapture writeonly [[P:%.*]]) {
; CHECK-NEXT: [[TMP1:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
; CHECK-NEXT: store i8* [[TMP1]], i8** [[P]], align 8
; CHECK-NEXT: ret void
;
%1 = tail call noalias i8* @malloc(i64 4)
store i8* %1, i8** %P
ret void
}
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