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cb424d7448dc5ccd1eec482f2d3845d25231c368
RedBear-OS/local/recipes/dev/libclc/source/clang/test/CodeGen/exceptions-seh.c
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vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

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// 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 noundef %numerator, i32 noundef %denominator, ptr noundef %myres)
// CHECK: sdiv i32
// CHECK: store i32 %{{.*}}, ptr
// 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 noundef %numerator, i32 noundef %denominator, ptr noundef %res)
// X64-SAME: personality ptr @__C_specific_handler
// ARM64-SAME: personality ptr @__C_specific_handler
// X86-SAME: personality ptr @_except_handler3
// CHECK: invoke void @try_body(i32 noundef %{{.*}}, i32 noundef %{{.*}}, ptr noundef %{{.*}}) #[[NOINLINE:[0-9]+]]
// CHECK: to label %{{.*}} unwind label %[[catchpad:[^ ]*]]
//
// CHECK: [[catchpad]]
// X64: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [ptr null]
// ARM64: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [ptr null]
// X86: %[[padtoken:[^ ]*]] = catchpad within %{{[^ ]*}} [ptr @"?filt$0@0@safe_div@@"]
// CHECK-NEXT: catchret from %[[padtoken]] to label %[[except:[^ ]*]]
//
// CHECK: [[except]]
// CHECK: store i32 -42, ptr %[[success:[^ ]*]]
//
// CHECK: %[[res:[^ ]*]] = load i32, ptr %[[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 ptr @llvm.frameaddress.p0(i32 1)
// X86: %[[fp:[^ ]*]] = call ptr @llvm.eh.recoverfp(ptr @safe_div, ptr %[[ebp]])
// X86: call ptr @llvm.localrecover(ptr @safe_div, ptr %[[fp]], i32 0)
// X86: load ptr, ptr
// X86: load ptr, ptr
// X86: load i32, ptr
// X86: store i32 %{{.*}}, ptr
// X86: ret i32 1
// Mingw uses msvcrt, so it can also use _except_handler3.
// X86-GNU-LABEL: define dso_local i32 @safe_div(i32 noundef %numerator, i32 noundef %denominator, ptr noundef %res)
// X86-GNU-SAME: personality ptr @_except_handler3
// X64-GNU-LABEL: define dso_local i32 @safe_div(i32 noundef %numerator, i32 noundef %denominator, ptr noundef %res)
// X64-GNU-SAME: personality ptr @__C_specific_handler
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 ptr @__C_specific_handler
// ARM64-SAME: personality ptr @__C_specific_handler
// X86-SAME: personality ptr @_except_handler3
// X64: call void (...) @llvm.localescape(ptr %[[r:[^ ,]*]])
// ARM64: call void (...) @llvm.localescape(ptr %[[r:[^ ,]*]])
// X86: call void (...) @llvm.localescape(ptr %[[r:[^ ,]*]], ptr %[[code:[^ ,]*]])
// CHECK: store i32 42, ptr %[[r]]
// CHECK: invoke void @j() #[[NOINLINE]]
//
// CHECK: catchpad within %{{[^ ]*}} [ptr @"?filt$0@0@filter_expr_capture@@"]
// CHECK: store i32 13, ptr %[[r]]
//
// CHECK: %[[rv:[^ ]*]] = load i32, ptr %[[r]]
// CHECK: ret i32 %[[rv]]
// X64-LABEL: define internal i32 @"?filt$0@0@filter_expr_capture@@"(ptr noundef %exception_pointers, ptr noundef %frame_pointer)
// X64: %[[fp:[^ ]*]] = call ptr @llvm.eh.recoverfp(ptr @filter_expr_capture, ptr %frame_pointer)
// X64: call ptr @llvm.localrecover(ptr @filter_expr_capture, ptr %[[fp]], i32 0)
//
// ARM64-LABEL: define internal i32 @"?filt$0@0@filter_expr_capture@@"(ptr noundef %exception_pointers, ptr noundef %frame_pointer)
// ARM64: %[[fp:[^ ]*]] = call ptr @llvm.eh.recoverfp(ptr @filter_expr_capture, ptr %frame_pointer)
// ARM64: call ptr @llvm.localrecover(ptr @filter_expr_capture, ptr %[[fp]], i32 0)
//
// X86-LABEL: define internal i32 @"?filt$0@0@filter_expr_capture@@"()
// X86: %[[ebp:[^ ]*]] = call ptr @llvm.frameaddress.p0(i32 1)
// X86: %[[fp:[^ ]*]] = call ptr @llvm.eh.recoverfp(ptr @filter_expr_capture, ptr %[[ebp]])
// X86: call ptr @llvm.localrecover(ptr @filter_expr_capture, ptr %[[fp]], i32 0)
//
// CHECK: store i32 -1, ptr %{{.*}}
// 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 ptr @__C_specific_handler
// ARM64-SAME: personality ptr @__C_specific_handler
// X86-SAME: personality ptr @_except_handler3
// CHECK: store i32 42, ptr %[[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 %{{[^ ]*}} [ptr @"?filt$0@0@nested_try@@"]
// CHECK-NEXT: catchret {{.*}} to label %[[except_outer:[^ ]*]]
//
// CHECK: [[except_outer]]
// CHECK: store i32 456, ptr %[[r]]
// CHECK: br label %[[outer_try_cont:[^ ]*]]
//
// CHECK: [[outer_try_cont]]
// CHECK: %[[r_load:[^ ]*]] = load i32, ptr %[[r]]
// CHECK: ret i32 %[[r_load]]
//
// CHECK: [[cpad_inner]]
// CHECK: catchpad within %[[cs_inner]] [ptr @"?filt$1@0@nested_try@@"]
// CHECK-NEXT: catchret {{.*}} to label %[[except_inner:[^ ]*]]
//
// CHECK: [[except_inner]]
// CHECK: store i32 123, ptr %[[r]]
// CHECK: br label %[[inner_try_cont:[^ ]*]]
//
// CHECK: [[inner_try_cont]]
// CHECK: br label %[[outer_try_cont]]
//
// CHECK: [[cont]]
// CHECK: store i32 0, ptr %[[r]]
// CHECK: br label %[[inner_try_cont]]
//
// CHECK-LABEL: define internal i32 @"?filt$0@0@nested_try@@"({{.*}})
// X86: call ptr @llvm.eh.recoverfp({{.*}})
// CHECK: load ptr, ptr
// CHECK: load i32, ptr
// CHECK: icmp eq i32 %{{.*}}, 456
//
// CHECK-LABEL: define internal i32 @"?filt$1@0@nested_try@@"({{.*}})
// X86: call ptr @llvm.eh.recoverfp({{.*}})
// CHECK: load ptr, ptr
// CHECK: load i32, ptr
// 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 noundef %g)
// X64-SAME: personality ptr @__C_specific_handler
// ARM64-SAME: personality ptr @__C_specific_handler
// X86-SAME: personality ptr @_except_handler3
// CHECK: %[[g_addr:[^ ]*]] = alloca i32, align 4
// CHECK: call void (...) @llvm.localescape(ptr %[[g_addr]])
// CHECK: store i32 %g, ptr %[[g_addr]]
//
// CHECK: invoke void @j()
// CHECK: to label %[[cont:[^ ]*]] unwind label %[[cleanuppad:[^ ]*]]
//
// CHECK: [[cont]]
// CHECK: %[[fp:[^ ]*]] = call ptr @llvm.localaddress()
// CHECK: call void @"?fin$0@0@basic_finally@@"({{i8 noundef( zeroext)?}} 0, ptr noundef %[[fp]])
// CHECK: load i32, ptr %[[g_addr]], align 4
// CHECK: ret i32
//
// CHECK: [[cleanuppad]]
// CHECK: %[[padtoken:[^ ]*]] = cleanuppad within none []
// CHECK: %[[fp:[^ ]*]] = call ptr @llvm.localaddress()
// CHECK: call void @"?fin$0@0@basic_finally@@"({{i8 noundef( zeroext)?}} 1, ptr noundef %[[fp]])
// CHECK: cleanupret from %[[padtoken]] unwind to caller
// CHECK: define internal void @"?fin$0@0@basic_finally@@"({{i8 noundef( zeroext)?}} %abnormal_termination, ptr noundef %frame_pointer)
// CHECK: call ptr @llvm.localrecover(ptr @basic_finally, ptr %frame_pointer, i32 0)
// CHECK: load i32, ptr %{{.*}}, align 4
// CHECK: add nsw i32 %{{.*}}, 1
// CHECK: store i32 %{{.*}}, ptr %{{.*}}, 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, ptr %[[rv:[^ ]*]]
// CHECK: br label %[[retbb:[^ ]*]]
//
// CHECK: [[cont]]
// CHECK: store i32 %[[tmp]], ptr %[[rv]]
// CHECK: br label %[[retbb]]
//
// CHECK: [[retbb]]
// CHECK: %[[r:[^ ]*]] = load i32, ptr %[[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(ptr [[X]])
// CHECK-NEXT: store i32 {{.*}}, ptr [[X]], align 4
// CHECK-NEXT: [[LOCAL:%.*]] = call ptr @llvm.localaddress()
// CHECK-NEXT: call void [[FINALLY:@.*]](i8 noundef{{ zeroext | }}0, ptr noundef [[LOCAL]])
// CHECK: define internal void [[FINALLY]](
// CHECK: [[LOCAL:%.*]] = call ptr @llvm.localrecover(
// CHECK-NEXT: [[Y:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[Z:%.*]] = alloca i32, align 4
// CHECK-NEXT: store ptr
// CHECK-NEXT: store i8
// CHECK-NEXT: [[T0:%.*]] = load i32, ptr [[LOCAL]], align 4
// CHECK-NEXT: store i32 [[T0]], ptr [[Y]], align 4
// CHECK-NEXT: [[T0:%.*]] = load i32, ptr [[LOCAL]], align 4
// CHECK-NEXT: store i32 [[T0]], ptr [[Z]], align 4
// CHECK-NEXT: ret void
int exception_code_in_except(void) {
__try {
try_body(0, 0, 0);
} __except(1) {
return _exception_code();
}
return 0;
}
// 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 noundef 0, i32 noundef 0, ptr noundef null)
// CHECK: %[[pad:[^ ]*]] = catchpad
// CHECK: catchret from %[[pad]]
// X64: %[[code:[^ ]*]] = call i32 @llvm.eh.exceptioncode(token %[[pad]])
// X64: store i32 %[[code]], ptr %[[code_slot]]
// ARM64: %[[code:[^ ]*]] = call i32 @llvm.eh.exceptioncode(token %[[pad]])
// ARM64: store i32 %[[code]], ptr %[[code_slot]]
// CHECK: %[[ret1:[^ ]*]] = load i32, ptr %[[code_slot]]
// CHECK: store i32 %[[ret1]], ptr %[[ret_slot]]
// CHECK: %[[ret2:[^ ]*]] = load i32, ptr %[[ret_slot]]
// CHECK: ret i32 %[[ret2]]
// CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} }
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