309 lines
12 KiB
C
309 lines
12 KiB
C
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// Check that backend stack layout diagnostics are working correctly with and
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// without debug information, and when optimizations are enabled
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//
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// REQUIRES: x86-registered-target
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//
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// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: %clang_cc1 %s -emit-codegen-only -triple x86_64-unknown-linux-gnu -target-cpu corei7 -Rpass-analysis=stack-frame-layout -o /dev/null -O0 2>&1 | FileCheck %s --check-prefix=O0-NODEBUG
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// RUN: %clang_cc1 %s -emit-codegen-only -triple x86_64-unknown-linux-gnu -target-cpu corei7 -Rpass-analysis=stack-frame-layout -o /dev/null -O0 -debug-info-kind=constructor -dwarf-version=5 -debugger-tuning=gdb 2>&1 | FileCheck %s --check-prefix=O0-DEBUG
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// RUN: %clang_cc1 %s -emit-codegen-only -triple x86_64-unknown-linux-gnu -target-cpu corei7 -funwind-tables=2 -O3 -Rpass-analysis=stack-frame-layout -debug-info-kind=constructor -dwarf-version=5 -debugger-tuning=gdb -opt-record-file %t/stack-layout-remark.c.yml -opt-record-passes stack-frame-layout 2>&1 | FileCheck %s --check-prefix=O3-DEBUG
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// RUN: cat %t/stack-layout-remark.c.yml | FileCheck %s --check-prefix=YAML
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#define NULL (void*)0
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extern void* allocate(unsigned size);
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extern void deallocate(void* ptr);
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extern int work(char *ary, int size);
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extern int rand(void);
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// Test YAML Ouput
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// YAML: --- !Analysis
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// YAML: Pass: stack-frame-layout
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// YAML: Name: StackLayout
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// YAML: DebugLoc: { File: '{{.*}}stack-layout-remark.c',{{[[:space:]]*}}Line: [[# @LINE + 24]],
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// YAML: Function: foo
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// YAML: Args:
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// YAML: - Offset: '-40'
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// YAML: - Type: Variable
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// YAML: - Align: '16'
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// YAML: - Size: '32'
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// YAML: - DataLoc: 'a @ {{.*}}stack-layout-remark.c:[[# @LINE + 19]]'
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// YAML: - DataLoc: 'f @ {{.*}}stack-layout-remark.c:[[# @LINE + 21]]'
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// O0-NODEBUG: Function: foo
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// O0-NODEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32
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// O0-NODEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32
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//
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// O0-DEBUG: Function: foo
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// O0-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32
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// O0-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]]
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// O0-DEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32
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// O0-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 11]]
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// O3-DEBUG: Function: foo
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// O3-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32
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// O3-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 4]]
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// O3-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 6]]
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void foo() {
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{
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char a[32] = {0};
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work(a, sizeof(a));
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}
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char f[32] = {0};
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work(f, sizeof(f));
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}
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// O0-NODEBUG: Function: bar
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// O0-NODEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32
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// O0-NODEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32
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// O0-DEBUG: Function: bar
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// O0-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32
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// O0-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]]
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// O0-DEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32
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// O0-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]]
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// O3-DEBUG: Function: bar
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// O3-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32
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// O3-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 4]]
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// O3-DEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32
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// O3-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 4]]
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void bar() {
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char f[32] = {0};
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{
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char a[32] = {0};
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work(a, sizeof(a));
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}
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work(f, sizeof(f));
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}
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struct Array {
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int *data;
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int size;
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};
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struct Result {
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struct Array *data;
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int sum;
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};
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// O0-NODEBUG: Function: cleanup_array
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// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG: Function: cleanup_array
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// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 5]]
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// O3-DEBUG: Function: cleanup_array
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// O3-DEBUG: Function: cleanup_result
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// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8
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void cleanup_array(struct Array *a) {
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if (!a)
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return;
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if (!a->data)
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return;
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deallocate(a->data);
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}
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// O0-NODEBUG: Function: cleanup_result
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// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG: Function: cleanup_result
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// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: res @ {{.*}}stack-layout-remark.c:[[# @LINE + 1]]
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void cleanup_result(struct Result *res) {
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if (!res)
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return;
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if (!res->data)
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return;
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cleanup_array(res->data);
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deallocate(res->data);
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}
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extern void use_dot_vector(struct Array *data);
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// O0-NODEBUG: Function: do_work
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// O0-NODEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-48], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-52], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-56], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG: Function: do_work
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// O0-DEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: A @ {{.*}}stack-layout-remark.c:[[# @LINE + 20]]
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// O0-DEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: B @ {{.*}}stack-layout-remark.c:[[# @LINE + 18]]
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// O0-DEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: out @ {{.*}}stack-layout-remark.c:[[# @LINE + 16]]
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// O0-DEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: len @ {{.*}}stack-layout-remark.c:[[# @LINE + 19]]
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// O0-DEBUG-NEXT: Offset: [SP-48], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: AB @ {{.*}}stack-layout-remark.c:[[# @LINE + 18]]
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// O0-DEBUG-NEXT: Offset: [SP-52], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: sum @ {{.*}}stack-layout-remark.c:[[# @LINE + 32]]
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// O0-DEBUG-NEXT: Offset: [SP-56], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: i @ {{.*}}stack-layout-remark.c:[[# @LINE + 31]]
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// O3-DEBUG: Function: do_work
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// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-16], Type: Spill, Align: 8, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-24], Type: Spill, Align: 16, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-32], Type: Spill, Align: 8, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-40], Type: Spill, Align: 16, Size: 8
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int do_work(struct Array *A, struct Array *B, struct Result *out) {
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if (!A || !B)
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return -1;
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if (A->size != B->size)
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return -1;
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const int len = A->size;
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struct Array *AB;
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if (out->data == NULL) {
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AB = (struct Array *)allocate(sizeof(struct Array));
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AB->data = NULL;
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AB->size = 0;
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out->data = AB;
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} else {
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AB = out->data;
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}
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if (AB->data)
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deallocate(AB->data);
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AB->data = (int *)allocate(len * sizeof(int));
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AB->size = len;
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int sum = 0;
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for (int i = 0; i < len; ++i) {
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AB->data[i] = A->data[i] * B->data[i];
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sum += AB->data[i];
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}
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return sum;
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}
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// O0-NODEBUG: Function: gen_array
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// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-12], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-28], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG: Function: gen_array
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// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: Offset: [SP-12], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: size @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]]
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// O0-DEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: res @ {{.*}}stack-layout-remark.c:[[# @LINE + 11]]
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// O0-DEBUG-NEXT: Offset: [SP-28], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: i @ {{.*}}stack-layout-remark.c:[[# @LINE + 13]]
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// O3-DEBUG: Function: gen_array
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// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-16], Type: Spill, Align: 8, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-24], Type: Spill, Align: 16, Size: 8
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struct Array *gen_array(int size) {
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if (size < 0)
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return NULL;
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struct Array *res = (struct Array *)allocate(sizeof(struct Array));
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res->size = size;
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res->data = (int *)allocate(size * sizeof(int));
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for (int i = 0; i < size; ++i) {
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res->data[i] = rand();
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}
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return res;
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}
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// YAML: --- !Analysis
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// YAML: Pass: stack-frame-layout
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// YAML: Name: StackLayout
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// YAML: DebugLoc: { File: '{{.*}}stack-layout-remark.c',{{[[:space:]]*}}Line: [[# @LINE + 59]],
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// YAML: Function: caller
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// YAML: Args:
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// YAML: - Offset: '-8'
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// YAML: - Type: Spill
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// YAML: - Align: '16'
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// YAML: - Size: '8'
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// YAML: - Offset: '-16'
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// YAML: - Type: Spill
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// YAML: - Align: '8'
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// YAML: - Size: '8'
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// YAML: - Offset: '-24'
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// YAML: - Type: Spill
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// YAML: - Align: '16'
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// YAML: - Size: '8'
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// YAML: - Offset: '-32'
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// YAML: - Type: Spill
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// YAML: - Align: '8'
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// YAML: - Size: '8'
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// YAML: - Offset: '-40'
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// YAML: - Type: Spill
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// YAML: - Align: '16'
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// YAML: - Size: '8'
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// YAML: - Offset: '-48'
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// YAML: - Type: Spill
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// YAML: - Align: '8'
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// YAML: - Size: '8'
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// O0-NODEBUG: Function: caller
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// O0-NODEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8
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// O0-NODEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4
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// O0-NODEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG: Function: caller
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// O0-DEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: size @ {{.*}}stack-layout-remark.c:[[# @LINE + 20]]
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// O0-DEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: A @ {{.*}}stack-layout-remark.c:[[# @LINE + 19]]
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// O0-DEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: B @ {{.*}}stack-layout-remark.c:[[# @LINE + 18]]
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// O0-DEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8
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// O0-DEBUG-NEXT: res @ {{.*}}stack-layout-remark.c:[[# @LINE + 17]]
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// O0-DEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: ret @ {{.*}}stack-layout-remark.c:[[# @LINE + 16]]
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// O0-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 4, Size: 4
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// O0-DEBUG-NEXT: err @ {{.*}}stack-layout-remark.c:[[# @LINE + 16]]
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// O3-DEBUG: Function: caller
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// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-16], Type: Spill, Align: 8, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-24], Type: Spill, Align: 16, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-32], Type: Spill, Align: 8, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-40], Type: Spill, Align: 16, Size: 8
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// O3-DEBUG-NEXT: Offset: [SP-48], Type: Spill, Align: 8, Size: 8
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int caller() {
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const int size = 100;
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struct Array *A = gen_array(size);
|
||
|
|
struct Array *B = gen_array(size);
|
||
|
|
struct Result *res = (struct Result *)allocate(sizeof(struct Result));
|
||
|
|
int ret = -1;
|
||
|
|
|
||
|
|
int err = do_work(A, B, res);
|
||
|
|
if (err == -1) {
|
||
|
|
goto cleanup;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = res->sum;
|
||
|
|
if (ret == -1)
|
||
|
|
return caller();
|
||
|
|
|
||
|
|
use_dot_vector(res->data);
|
||
|
|
|
||
|
|
cleanup:
|
||
|
|
cleanup_array(A);
|
||
|
|
cleanup_array(B);
|
||
|
|
cleanup_result(res);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|