mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 12:02:58 +02:00
c8b1f095a3
The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 llvm-svn: 239940
66 lines
1.3 KiB
LLVM
66 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=WIN64
|
|
|
|
declare void @bar()
|
|
declare void @baz()
|
|
declare i32 @personality(...)
|
|
|
|
; Check for 'nop' between the last call and the epilogue.
|
|
define void @foo1() personality i32 (...)* @personality {
|
|
|
|
invoke void @bar()
|
|
to label %normal
|
|
unwind label %catch
|
|
|
|
normal:
|
|
ret void
|
|
|
|
catch:
|
|
%1 = landingpad { i8*, i32 } cleanup
|
|
resume { i8*, i32 } %1
|
|
}
|
|
; WIN64-LABEL: foo1:
|
|
; WIN64: .seh_proc foo1
|
|
; WIN64: callq bar
|
|
; WIN64: nop
|
|
; WIN64: addq ${{[0-9]+}}, %rsp
|
|
; WIN64: retq
|
|
; Check for 'ud2' after noreturn call
|
|
; WIN64: callq _Unwind_Resume
|
|
; WIN64-NEXT: ud2
|
|
; WIN64: .seh_endproc
|
|
|
|
|
|
; Check it still works when blocks are reordered.
|
|
@something = global i32 0
|
|
define void @foo2(i1 zeroext %cond ) {
|
|
br i1 %cond, label %a, label %b, !prof !0
|
|
a:
|
|
call void @bar()
|
|
br label %done
|
|
b:
|
|
call void @baz()
|
|
store i32 0, i32* @something
|
|
br label %done
|
|
done:
|
|
ret void
|
|
}
|
|
!0 = !{!"branch_weights", i32 100, i32 0}
|
|
; WIN64-LABEL: foo2:
|
|
; WIN64: callq bar
|
|
; WIN64: nop
|
|
; WIN64: addq ${{[0-9]+}}, %rsp
|
|
; WIN64: retq
|
|
|
|
|
|
; Check nop is not emitted when call is not adjacent to epilogue.
|
|
define i32 @foo3() {
|
|
call void @bar()
|
|
ret i32 0
|
|
}
|
|
; WIN64-LABEL: foo3:
|
|
; WIN64: callq bar
|
|
; WIN64: xorl
|
|
; WIN64-NOT: nop
|
|
; WIN64: addq ${{[0-9]+}}, %rsp
|
|
; WIN64: retq
|