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[COFF, ARM64] Enable SEH for ARM64 Windows 

Reviewers: rnk, mstorsjo, ssijaric, haripul, TomTan

Reviewed By: rnk

Subscribers: kristof.beyls, chrib, cfe-commits

Differential Revision: https://reviews.llvm.org/D50029

llvm-svn: 338405
This commit is contained in:
Mandeep Singh Grang 2018-07-31 17:42:05 +00:00
parent 1f4b9cb6fe
commit 1f6fb8d063
3 changed files with 17 additions and 1 deletions
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3
clang/include/clang/Basic/TargetInfo.h
View File

@ -1139,7 +1139,8 @@ public:
bool isSEHTrySupported() const {
return getTriple().isOSWindows() &&
(getTriple().getArch() == llvm::Triple::x86 ||
getTriple().getArch() == llvm::Triple::x86_64);
getTriple().getArch() == llvm::Triple::x86_64 ||
getTriple().getArch() == llvm::Triple::aarch64);
}
/// Return true if {|} are normal characters in the asm string.

1
clang/test/CodeGen/exceptions-seh-finally.c
View File

@ -1,5 +1,6 @@
// RUN: %clang_cc1 %s -triple x86_64-pc-win32 -fms-extensions -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -triple i686-pc-win32 -fms-extensions -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -triple aarch64-windows -fms-extensions -emit-llvm -o - | FileCheck %s
void abort(void) __attribute__((noreturn));
void might_crash(void);

14
clang/test/CodeGen/exceptions-seh.c
View File

@ -2,6 +2,8 @@
// 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 - \
@ -29,12 +31,14 @@ int safe_div(int numerator, int denominator, int *res) {
// 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:[^ ]*]]
//
@ -76,8 +80,10 @@ int filter_expr_capture(void) {
// 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]]
@ -92,6 +98,10 @@ int filter_expr_capture(void) {
// 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]])
@ -116,6 +126,7 @@ int nested_try(void) {
}
// 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]]
@ -176,6 +187,7 @@ int basic_finally(int 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]])
@ -275,6 +287,8 @@ int exception_code_in_except(void) {
// 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]]