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SimplifyCFG allows tail merging with code which terminates in unreachable which, in turn, makes it possible for an invoke to end up in a funclet which it was not originally part of. Using operand bundles on invokes allows us to determine whether or not an invoke was part of a funclet in the source program. Furthermore, it allows us to unambiguously answer questions about the legality of inlining into call sites which the personality may have trouble with. Differential Revision: http://reviews.llvm.org/D15517 llvm-svn: 255674
27 lines
898 B
LLVM
27 lines
898 B
LLVM
; RUN: llc -mtriple=x86_64-pc-windows-coreclr < %s | FileCheck %s
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declare void @ProcessCLRException()
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declare i8 addrspace(1)* @llvm.eh.exceptionpointer.p1i8(token)
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declare void @f()
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declare void @g(i32 addrspace(1)*)
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; CHECK-LABEL: test1: # @test1
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define void @test1() personality i8* bitcast (void ()* @ProcessCLRException to i8*) {
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entry:
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invoke void @f()
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to label %exit unwind label %catch.pad
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catch.pad:
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%cs1 = catchswitch within none [label %catch.body] unwind to caller
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catch.body:
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; CHECK: {{^[^: ]+}}: # %catch.body
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; CHECK: movq %rdx, %rcx
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; CHECK-NEXT: callq g
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%catch = catchpad within %cs1 [i32 5]
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%exn = call i8 addrspace(1)* @llvm.eh.exceptionpointer.p1i8(token %catch)
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%cast_exn = bitcast i8 addrspace(1)* %exn to i32 addrspace(1)*
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call void @g(i32 addrspace(1)* %cast_exn) [ "funclet"(token %catch) ]
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catchret from %catch to label %exit
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exit:
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ret void
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}
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