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cac831b368
This is the forth patch in the coroutine series. CoroEaly pass now lowers coro.resume and coro.destroy intrinsics by replacing them with an indirect call to an address returned by coro.subfn.addr intrinsic. This is done so that CGPassManager recognizes devirtualization when CoroElide replaces a call to coro.subfn.addr with an appropriate function address. Patch by Gor Nishanov! Differential Revision: https://reviews.llvm.org/D22998 llvm-svn: 277765
80 lines
1.9 KiB
LLVM
80 lines
1.9 KiB
LLVM
; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s
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; PR1042
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define i32 @foo() {
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; CHECK: The unwind destination does not have an exception handling instruction
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%A = invoke i32 @foo( )
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to label %L unwind label %L ; <i32> [#uses=1]
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L: ; preds = %0, %0
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ret i32 %A
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}
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; PR1042
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define i32 @bar() {
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br i1 false, label %L1, label %L2
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L1: ; preds = %0
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%A = invoke i32 @bar( )
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to label %L unwind label %L ; <i32> [#uses=1]
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L2: ; preds = %0
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br label %L
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L: ; preds = %L2, %L1, %L1
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; CHECK: The unwind destination does not have an exception handling instruction
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ret i32 %A
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}
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declare i32 @__gxx_personality_v0(...)
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declare void @llvm.donothing()
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declare void @llvm.trap()
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declare i8 @llvm.expect.i8(i8,i8)
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declare i32 @fn(i8 (i8, i8)*)
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define void @f1() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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; OK
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invoke void @llvm.donothing()
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to label %conta unwind label %contb
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conta:
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ret void
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contb:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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ret void
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}
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define i8 @f2() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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; CHECK: Cannot invoke an intrinsic other than donothing, patchpoint, statepoint, coro_resume or coro_destroy
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invoke void @llvm.trap()
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to label %cont unwind label %lpad
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cont:
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ret i8 3
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lpad:
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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ret i8 2
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}
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define i32 @f3() {
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entry:
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; CHECK: Cannot take the address of an intrinsic
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%call = call i32 @fn(i8 (i8, i8)* @llvm.expect.i8)
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ret i32 %call
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}
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define void @f4() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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entry:
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invoke void @llvm.donothing()
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to label %cont unwind label %cont
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cont:
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; CHECK: Block containing LandingPadInst must be jumped to only by the unwind edge of an invoke.
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%0 = landingpad { i8*, i32 }
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filter [0 x i8*] zeroinitializer
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ret void
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}
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