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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
56 lines
1.6 KiB
LLVM
56 lines
1.6 KiB
LLVM
; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s
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%Iter = type { i32, i32, i32 }
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%frame.reverse = type { %Iter, %Iter }
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declare i32 @pers(...)
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declare void @llvm.stackrestore(i8*)
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declare i8* @llvm.stacksave()
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declare void @begin(%Iter* sret)
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declare void @plus(%Iter* sret, %Iter*, i32)
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declare void @reverse(%frame.reverse* inalloca align 4)
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define i32 @main() personality i32 (...)* @pers {
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%temp.lvalue = alloca %Iter
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br label %blah
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blah:
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%inalloca.save = call i8* @llvm.stacksave()
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%rev_args = alloca inalloca %frame.reverse, align 4
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%beg = getelementptr %frame.reverse, %frame.reverse* %rev_args, i32 0, i32 0
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%end = getelementptr %frame.reverse, %frame.reverse* %rev_args, i32 0, i32 1
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; CHECK: calll __chkstk
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; CHECK: movl %esp, %[[beg:[^ ]*]]
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; CHECK: leal 12(%[[beg]]), %[[end:[^ ]*]]
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call void @begin(%Iter* sret %temp.lvalue)
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; CHECK: calll _begin
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invoke void @plus(%Iter* sret %end, %Iter* %temp.lvalue, i32 4)
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to label %invoke.cont unwind label %lpad
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; Uses end as sret param.
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; CHECK: pushl %[[end]]
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; CHECK: calll _plus
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invoke.cont:
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call void @begin(%Iter* sret %beg)
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; CHECK: pushl %[[beg]]
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; CHECK: calll _begin
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invoke void @reverse(%frame.reverse* inalloca align 4 %rev_args)
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to label %invoke.cont5 unwind label %lpad
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invoke.cont5: ; preds = %invoke.cont
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call void @llvm.stackrestore(i8* %inalloca.save)
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ret i32 0
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lpad: ; preds = %invoke.cont, %entry
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%lp = landingpad { i8*, i32 }
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cleanup
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unreachable
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}
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