forked from OSchip/llvm-project
298 lines
12 KiB
C
298 lines
12 KiB
C
// RUN: %clang_cc1 %s -triple x86_64-pc-win32 -fms-extensions -emit-llvm -o - \
|
|
// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=X64
|
|
// RUN: %clang_cc1 %s -triple i686-pc-win32 -fms-extensions -emit-llvm -o - \
|
|
// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=X86
|
|
// RUN: %clang_cc1 %s -triple aarch64-windows -fms-extensions -emit-llvm -o - \
|
|
// RUN: | FileCheck %s --check-prefixes=CHECK,ARM64
|
|
// RUN: %clang_cc1 %s -triple i686-pc-windows-gnu -fms-extensions -emit-llvm -o - \
|
|
// RUN: | FileCheck %s --check-prefix=X86-GNU
|
|
// RUN: %clang_cc1 %s -triple x86_64-pc-windows-gnu -fms-extensions -emit-llvm -o - \
|
|
// RUN: | FileCheck %s --check-prefix=X64-GNU
|
|
|
|
void try_body(int numerator, int denominator, int *myres) {
|
|
*myres = numerator / denominator;
|
|
}
|
|
// CHECK-LABEL: define dso_local void @try_body(i32 %numerator, i32 %denominator, i32* %myres)
|
|
// CHECK: sdiv i32
|
|
// CHECK: store i32 %{{.*}}, i32*
|
|
// CHECK: ret void
|
|
|
|
int safe_div(int numerator, int denominator, int *res) {
|
|
int myres = 0;
|
|
int success = 1;
|
|
__try {
|
|
try_body(numerator, denominator, &myres);
|
|
} __except (1) {
|
|
success = -42;
|
|
}
|
|
*res = myres;
|
|
return success;
|
|
}
|
|
|
|
// CHECK-LABEL: define dso_local i32 @safe_div(i32 %numerator, i32 %denominator, i32* %res)
|
|
// X64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// ARM64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// X86-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
|
|
// CHECK: invoke void @try_body(i32 %{{.*}}, i32 %{{.*}}, i32* %{{.*}}) #[[NOINLINE:[0-9]+]]
|
|
// CHECK: to label %{{.*}} unwind label %[[catchpad:[^ ]*]]
|
|
//
|
|
// CHECK: [[catchpad]]
|
|
// X64: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [i8* null]
|
|
// ARM64: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [i8* null]
|
|
// X86: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [i8* bitcast (i32 ()* @"?filt$0@0@safe_div@@" to i8*)]
|
|
// CHECK-NEXT: catchret from %[[padtoken]] to label %[[except:[^ ]*]]
|
|
//
|
|
// CHECK: [[except]]
|
|
// CHECK: store i32 -42, i32* %[[success:[^ ]*]]
|
|
//
|
|
// CHECK: %[[res:[^ ]*]] = load i32, i32* %[[success]]
|
|
// CHECK: ret i32 %[[res]]
|
|
|
|
// 32-bit SEH needs this filter to save the exception code.
|
|
//
|
|
// X86-LABEL: define internal i32 @"?filt$0@0@safe_div@@"()
|
|
// X86: %[[ebp:[^ ]*]] = call i8* @llvm.frameaddress(i32 1)
|
|
// X86: %[[fp:[^ ]*]] = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 (i32, i32, i32*)* @safe_div to i8*), i8* %[[ebp]])
|
|
// X86: call i8* @llvm.localrecover(i8* bitcast (i32 (i32, i32, i32*)* @safe_div to i8*), i8* %[[fp]], i32 0)
|
|
// X86: load i8*, i8**
|
|
// X86: load i32*, i32**
|
|
// X86: load i32, i32*
|
|
// X86: store i32 %{{.*}}, i32*
|
|
// X86: ret i32 1
|
|
|
|
// Mingw uses msvcrt, so it can also use _except_handler3.
|
|
// X86-GNU-LABEL: define dso_local i32 @safe_div(i32 %numerator, i32 %denominator, i32* %res)
|
|
// X86-GNU-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
|
|
// X64-GNU-LABEL: define dso_local i32 @safe_div(i32 %numerator, i32 %denominator, i32* %res)
|
|
// X64-GNU-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
|
|
void j(void);
|
|
|
|
int filter_expr_capture(void) {
|
|
int r = 42;
|
|
__try {
|
|
j();
|
|
} __except(r = -1) {
|
|
r = 13;
|
|
}
|
|
return r;
|
|
}
|
|
|
|
// CHECK-LABEL: define dso_local i32 @filter_expr_capture()
|
|
// X64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// ARM64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// X86-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
|
|
// X64: call void (...) @llvm.localescape(i32* %[[r:[^ ,]*]])
|
|
// ARM64: call void (...) @llvm.localescape(i32* %[[r:[^ ,]*]])
|
|
// X86: call void (...) @llvm.localescape(i32* %[[r:[^ ,]*]], i32* %[[code:[^ ,]*]])
|
|
// CHECK: store i32 42, i32* %[[r]]
|
|
// CHECK: invoke void @j() #[[NOINLINE]]
|
|
//
|
|
// CHECK: catchpad within %{{[^ ]*}} [i8* bitcast (i32 ({{.*}})* @"?filt$0@0@filter_expr_capture@@" to i8*)]
|
|
// CHECK: store i32 13, i32* %[[r]]
|
|
//
|
|
// CHECK: %[[rv:[^ ]*]] = load i32, i32* %[[r]]
|
|
// CHECK: ret i32 %[[rv]]
|
|
|
|
// X64-LABEL: define internal i32 @"?filt$0@0@filter_expr_capture@@"(i8* %exception_pointers, i8* %frame_pointer)
|
|
// X64: %[[fp:[^ ]*]] = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %frame_pointer)
|
|
// X64: call i8* @llvm.localrecover(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %[[fp]], i32 0)
|
|
//
|
|
// ARM64-LABEL: define internal i32 @"?filt$0@0@filter_expr_capture@@"(i8* %exception_pointers, i8* %frame_pointer)
|
|
// ARM64: %[[fp:[^ ]*]] = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %frame_pointer)
|
|
// ARM64: call i8* @llvm.localrecover(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %[[fp]], i32 0)
|
|
//
|
|
// X86-LABEL: define internal i32 @"?filt$0@0@filter_expr_capture@@"()
|
|
// X86: %[[ebp:[^ ]*]] = call i8* @llvm.frameaddress(i32 1)
|
|
// X86: %[[fp:[^ ]*]] = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %[[ebp]])
|
|
// X86: call i8* @llvm.localrecover(i8* bitcast (i32 ()* @filter_expr_capture to i8*), i8* %[[fp]], i32 0)
|
|
//
|
|
// CHECK: store i32 -1, i32* %{{.*}}
|
|
// CHECK: ret i32 -1
|
|
|
|
int nested_try(void) {
|
|
int r = 42;
|
|
__try {
|
|
__try {
|
|
j();
|
|
r = 0;
|
|
} __except(_exception_code() == 123) {
|
|
r = 123;
|
|
}
|
|
} __except(_exception_code() == 456) {
|
|
r = 456;
|
|
}
|
|
return r;
|
|
}
|
|
// CHECK-LABEL: define dso_local i32 @nested_try()
|
|
// X64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// ARM64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// X86-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
|
|
// CHECK: store i32 42, i32* %[[r:[^ ,]*]]
|
|
// CHECK: invoke void @j() #[[NOINLINE]]
|
|
// CHECK: to label %[[cont:[^ ]*]] unwind label %[[cswitch_inner:[^ ]*]]
|
|
//
|
|
// CHECK: [[cswitch_inner]]
|
|
// CHECK: %[[cs_inner:[^ ]*]] = catchswitch within none [label %[[cpad_inner:[^ ]*]]] unwind label %[[cswitch_outer:[^ ]*]]
|
|
//
|
|
// CHECK: [[cswitch_outer]]
|
|
// CHECK: %[[cs_outer:[^ ]*]] = catchswitch within none [label %[[cpad_outer:[^ ]*]]] unwind to caller
|
|
//
|
|
// CHECK: [[cpad_outer]]
|
|
// CHECK: catchpad within %{{[^ ]*}} [i8* bitcast (i32 ({{.*}})* @"?filt$0@0@nested_try@@" to i8*)]
|
|
// CHECK-NEXT: catchret {{.*}} to label %[[except_outer:[^ ]*]]
|
|
//
|
|
// CHECK: [[except_outer]]
|
|
// CHECK: store i32 456, i32* %[[r]]
|
|
// CHECK: br label %[[outer_try_cont:[^ ]*]]
|
|
//
|
|
// CHECK: [[outer_try_cont]]
|
|
// CHECK: %[[r_load:[^ ]*]] = load i32, i32* %[[r]]
|
|
// CHECK: ret i32 %[[r_load]]
|
|
//
|
|
// CHECK: [[cpad_inner]]
|
|
// CHECK: catchpad within %[[cs_inner]] [i8* bitcast (i32 ({{.*}})* @"?filt$1@0@nested_try@@" to i8*)]
|
|
// CHECK-NEXT: catchret {{.*}} to label %[[except_inner:[^ ]*]]
|
|
//
|
|
// CHECK: [[except_inner]]
|
|
// CHECK: store i32 123, i32* %[[r]]
|
|
// CHECK: br label %[[inner_try_cont:[^ ]*]]
|
|
//
|
|
// CHECK: [[inner_try_cont]]
|
|
// CHECK: br label %[[outer_try_cont]]
|
|
//
|
|
// CHECK: [[cont]]
|
|
// CHECK: store i32 0, i32* %[[r]]
|
|
// CHECK: br label %[[inner_try_cont]]
|
|
//
|
|
// CHECK-LABEL: define internal i32 @"?filt$0@0@nested_try@@"({{.*}})
|
|
// X86: call i8* @llvm.x86.seh.recoverfp({{.*}})
|
|
// CHECK: load i32*, i32**
|
|
// CHECK: load i32, i32*
|
|
// CHECK: icmp eq i32 %{{.*}}, 456
|
|
//
|
|
// CHECK-LABEL: define internal i32 @"?filt$1@0@nested_try@@"({{.*}})
|
|
// X86: call i8* @llvm.x86.seh.recoverfp({{.*}})
|
|
// CHECK: load i32*, i32**
|
|
// CHECK: load i32, i32*
|
|
// CHECK: icmp eq i32 %{{.*}}, 123
|
|
|
|
int basic_finally(int g) {
|
|
__try {
|
|
j();
|
|
} __finally {
|
|
++g;
|
|
}
|
|
return g;
|
|
}
|
|
// CHECK-LABEL: define dso_local i32 @basic_finally(i32 %g)
|
|
// X64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// ARM64-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
|
|
// X86-SAME: personality i8* bitcast (i32 (...)* @_except_handler3 to i8*)
|
|
// CHECK: %[[g_addr:[^ ]*]] = alloca i32, align 4
|
|
// CHECK: call void (...) @llvm.localescape(i32* %[[g_addr]])
|
|
// CHECK: store i32 %g, i32* %[[g_addr]]
|
|
//
|
|
// CHECK: invoke void @j()
|
|
// CHECK: to label %[[cont:[^ ]*]] unwind label %[[cleanuppad:[^ ]*]]
|
|
//
|
|
// CHECK: [[cont]]
|
|
// CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
|
|
// CHECK: call void @"?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 0, i8* %[[fp]])
|
|
// CHECK: load i32, i32* %[[g_addr]], align 4
|
|
// CHECK: ret i32
|
|
//
|
|
// CHECK: [[cleanuppad]]
|
|
// CHECK: %[[padtoken:[^ ]*]] = cleanuppad within none []
|
|
// CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
|
|
// CHECK: call void @"?fin$0@0@basic_finally@@"({{i8( zeroext)?}} 1, i8* %[[fp]])
|
|
// CHECK: cleanupret from %[[padtoken]] unwind to caller
|
|
|
|
// CHECK: define internal void @"?fin$0@0@basic_finally@@"({{i8( zeroext)?}} %abnormal_termination, i8* %frame_pointer)
|
|
// CHECK: call i8* @llvm.localrecover(i8* bitcast (i32 (i32)* @basic_finally to i8*), i8* %frame_pointer, i32 0)
|
|
// CHECK: load i32, i32* %{{.*}}, align 4
|
|
// CHECK: add nsw i32 %{{.*}}, 1
|
|
// CHECK: store i32 %{{.*}}, i32* %{{.*}}, align 4
|
|
// CHECK: ret void
|
|
|
|
int returns_int(void);
|
|
int except_return(void) {
|
|
__try {
|
|
return returns_int();
|
|
} __except(1) {
|
|
return 42;
|
|
}
|
|
}
|
|
// CHECK-LABEL: define dso_local i32 @except_return()
|
|
// CHECK: %[[tmp:[^ ]*]] = invoke i32 @returns_int()
|
|
// CHECK: to label %[[cont:[^ ]*]] unwind label %[[catchpad:[^ ]*]]
|
|
//
|
|
// CHECK: [[catchpad]]
|
|
// CHECK: catchpad
|
|
// CHECK: catchret
|
|
// CHECK: store i32 42, i32* %[[rv:[^ ]*]]
|
|
// CHECK: br label %[[retbb:[^ ]*]]
|
|
//
|
|
// CHECK: [[cont]]
|
|
// CHECK: store i32 %[[tmp]], i32* %[[rv]]
|
|
// CHECK: br label %[[retbb]]
|
|
//
|
|
// CHECK: [[retbb]]
|
|
// CHECK: %[[r:[^ ]*]] = load i32, i32* %[[rv]]
|
|
// CHECK: ret i32 %[[r]]
|
|
|
|
|
|
// PR 24751: don't assert if a variable is used twice in a __finally block.
|
|
// Also, make sure we don't do redundant work to capture/project it.
|
|
void finally_capture_twice(int x) {
|
|
__try {
|
|
} __finally {
|
|
int y = x;
|
|
int z = x;
|
|
}
|
|
}
|
|
//
|
|
// CHECK-LABEL: define dso_local void @finally_capture_twice(
|
|
// CHECK: [[X:%.*]] = alloca i32, align 4
|
|
// CHECK: call void (...) @llvm.localescape(i32* [[X]])
|
|
// CHECK-NEXT: store i32 {{.*}}, i32* [[X]], align 4
|
|
// CHECK-NEXT: [[LOCAL:%.*]] = call i8* @llvm.localaddress()
|
|
// CHECK-NEXT: call void [[FINALLY:@.*]](i8{{ zeroext | }}0, i8* [[LOCAL]])
|
|
// CHECK: define internal void [[FINALLY]](
|
|
// CHECK: [[LOCAL:%.*]] = call i8* @llvm.localrecover(
|
|
// CHECK: [[X:%.*]] = bitcast i8* [[LOCAL]] to i32*
|
|
// CHECK-NEXT: [[Y:%.*]] = alloca i32, align 4
|
|
// CHECK-NEXT: [[Z:%.*]] = alloca i32, align 4
|
|
// CHECK-NEXT: store i8*
|
|
// CHECK-NEXT: store i8
|
|
// CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[X]], align 4
|
|
// CHECK-NEXT: store i32 [[T0]], i32* [[Y]], align 4
|
|
// CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[X]], align 4
|
|
// CHECK-NEXT: store i32 [[T0]], i32* [[Z]], align 4
|
|
// CHECK-NEXT: ret void
|
|
|
|
int exception_code_in_except(void) {
|
|
__try {
|
|
try_body(0, 0, 0);
|
|
} __except(1) {
|
|
return _exception_code();
|
|
}
|
|
}
|
|
|
|
// CHECK-LABEL: define dso_local i32 @exception_code_in_except()
|
|
// CHECK: %[[ret_slot:[^ ]*]] = alloca i32
|
|
// CHECK: %[[code_slot:[^ ]*]] = alloca i32
|
|
// CHECK: invoke void @try_body(i32 0, i32 0, i32* null)
|
|
// CHECK: %[[pad:[^ ]*]] = catchpad
|
|
// CHECK: catchret from %[[pad]]
|
|
// X64: %[[code:[^ ]*]] = call i32 @llvm.eh.exceptioncode(token %[[pad]])
|
|
// X64: store i32 %[[code]], i32* %[[code_slot]]
|
|
// ARM64: %[[code:[^ ]*]] = call i32 @llvm.eh.exceptioncode(token %[[pad]])
|
|
// ARM64: store i32 %[[code]], i32* %[[code_slot]]
|
|
// CHECK: %[[ret1:[^ ]*]] = load i32, i32* %[[code_slot]]
|
|
// CHECK: store i32 %[[ret1]], i32* %[[ret_slot]]
|
|
// CHECK: %[[ret2:[^ ]*]] = load i32, i32* %[[ret_slot]]
|
|
// CHECK: ret i32 %[[ret2]]
|
|
|
|
// CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} }
|