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a72e83c26e
For historic reasons, the behavior of .align differs between targets. Fortunately, there are alternatives, .p2align and .balign, which make the interpretation of the parameter explicit, and which behave consistently across targets. This patch teaches MC to use .p2align instead of .align, so that people reading code for multiple architectures don't have to remember which way each platform does its .align directive. Differential Revision: http://reviews.llvm.org/D16549 llvm-svn: 258750
147 lines
4.3 KiB
LLVM
147 lines
4.3 KiB
LLVM
; RUN: llc -mtriple=i686-pc-windows-msvc < %s | FileCheck %s
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declare void @may_throw_or_crash()
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declare i32 @_except_handler3(...)
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declare i32 @_except_handler4(...)
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declare i32 @__CxxFrameHandler3(...)
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declare void @llvm.eh.begincatch(i8*, i8*)
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declare void @llvm.eh.endcatch()
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declare i32 @llvm.eh.typeid.for(i8*)
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define internal i32 @catchall_filt() {
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ret i32 1
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}
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define void @use_except_handler3() personality i32 (...)* @_except_handler3 {
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entry:
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invoke void @may_throw_or_crash()
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to label %cont unwind label %lpad
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cont:
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ret void
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lpad:
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%cs = catchswitch within none [label %catch] unwind to caller
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catch:
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%p = catchpad within %cs [i8* bitcast (i32 ()* @catchall_filt to i8*)]
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catchret from %p to label %cont
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}
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; CHECK-LABEL: _use_except_handler3:
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; CHECK: pushl %ebp
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; CHECK: movl %esp, %ebp
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; CHECK: pushl %ebx
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; CHECK: pushl %edi
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; CHECK: pushl %esi
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; CHECK: subl ${{[0-9]+}}, %esp
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; CHECK: movl $-1, -16(%ebp)
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; CHECK: movl $L__ehtable$use_except_handler3, -20(%ebp)
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; CHECK: leal -28(%ebp), %[[node:[^ ,]*]]
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; CHECK: movl $__except_handler3, -24(%ebp)
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; CHECK: movl %fs:0, %[[next:[^ ,]*]]
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; CHECK: movl %[[next]], -28(%ebp)
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; CHECK: movl %[[node]], %fs:0
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; CHECK: calll _may_throw_or_crash
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; CHECK: movl -28(%ebp), %[[next:[^ ,]*]]
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; CHECK: movl %[[next]], %fs:0
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; CHECK: retl
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; CHECK: LBB1_2: # %catch{{$}}
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; CHECK: .section .xdata,"dr"
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; CHECK-LABEL: L__ehtable$use_except_handler3:
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; CHECK-NEXT: .long -1
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; CHECK-NEXT: .long _catchall_filt
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; CHECK-NEXT: .long LBB1_2
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define void @use_except_handler4() personality i32 (...)* @_except_handler4 {
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entry:
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invoke void @may_throw_or_crash()
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to label %cont unwind label %lpad
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cont:
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ret void
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lpad:
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%cs = catchswitch within none [label %catch] unwind to caller
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catch:
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%p = catchpad within %cs [i8* bitcast (i32 ()* @catchall_filt to i8*)]
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catchret from %p to label %cont
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}
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; CHECK-LABEL: _use_except_handler4:
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; CHECK: pushl %ebp
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; CHECK: movl %esp, %ebp
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; CHECK: subl ${{[0-9]+}}, %esp
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; CHECK: movl %esp, -36(%ebp)
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; CHECK: movl $-2, -16(%ebp)
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; CHECK: movl $L__ehtable$use_except_handler4, %[[lsda:[^ ,]*]]
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; CHECK: xorl ___security_cookie, %[[lsda]]
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; CHECK: movl %[[lsda]], -20(%ebp)
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; CHECK: leal -28(%ebp), %[[node:[^ ,]*]]
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; CHECK: movl $__except_handler4, -24(%ebp)
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; CHECK: movl %fs:0, %[[next:[^ ,]*]]
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; CHECK: movl %[[next]], -28(%ebp)
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; CHECK: movl %[[node]], %fs:0
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; CHECK: calll _may_throw_or_crash
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; CHECK: movl -28(%ebp), %[[next:[^ ,]*]]
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; CHECK: movl %[[next]], %fs:0
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; CHECK: retl
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; CHECK: LBB2_2: # %catch{{$}}
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; CHECK: .section .xdata,"dr"
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; CHECK-LABEL: L__ehtable$use_except_handler4:
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; CHECK-NEXT: .long -2
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 9999
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long -2
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; CHECK-NEXT: .long _catchall_filt
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; CHECK-NEXT: .long LBB2_2
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define void @use_CxxFrameHandler3() personality i32 (...)* @__CxxFrameHandler3 {
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invoke void @may_throw_or_crash()
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to label %cont unwind label %catchall
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cont:
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ret void
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catchall:
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%cs = catchswitch within none [label %catch] unwind to caller
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catch:
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%p = catchpad within %cs [i8* null, i32 64, i8* null]
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catchret from %p to label %cont
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}
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; CHECK-LABEL: _use_CxxFrameHandler3:
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; CHECK: pushl %ebp
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; CHECK: movl %esp, %ebp
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; CHECK: subl ${{[0-9]+}}, %esp
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; CHECK: movl %esp, -28(%ebp)
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; CHECK: movl $-1, -16(%ebp)
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; CHECK: leal -24(%ebp), %[[node:[^ ,]*]]
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; CHECK: movl $___ehhandler$use_CxxFrameHandler3, -20(%ebp)
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; CHECK: movl %fs:0, %[[next:[^ ,]*]]
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; CHECK: movl %[[next]], -24(%ebp)
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; CHECK: movl %[[node]], %fs:0
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; CHECK: movl $0, -16(%ebp)
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; CHECK: calll _may_throw_or_crash
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; CHECK: movl -24(%ebp), %[[next:[^ ,]*]]
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; CHECK: movl %[[next]], %fs:0
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; CHECK: retl
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; CHECK: .section .xdata,"dr"
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; CHECK: .p2align 2
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; CHECK-LABEL: L__ehtable$use_CxxFrameHandler3:
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; CHECK-NEXT: .long 429065506
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long ($stateUnwindMap$use_CxxFrameHandler3)
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long ($tryMap$use_CxxFrameHandler3)
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 1
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; CHECK-LABEL: ___ehhandler$use_CxxFrameHandler3:
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; CHECK: movl $L__ehtable$use_CxxFrameHandler3, %eax
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; CHECK: jmp ___CxxFrameHandler3 # TAILCALL
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; CHECK: .safeseh __except_handler3
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; CHECK: .safeseh __except_handler4
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; CHECK: .safeseh ___ehhandler$use_CxxFrameHandler3
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