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llvm-project/llvm/test/CodeGen/Generic/donothing.ll

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add a new @llvm.donothing intrinsic that, well, does nothing, and teach CodeGen to ignore calls to it llvm-svn: 159383
2012-06-29 06:30:12 +08:00
; RUN: llc < %s | FileCheck %s
declare i32 @__gxx_personality_v0(...)
declare void @__cxa_call_unexpected(i8*)
declare void @llvm.donothing() readnone
; CHECK: f1
Move the personality function from LandingPadInst to Function 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
2015-06-18 04:52:32 +08:00
define void @f1() nounwind uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
add a new @llvm.donothing intrinsic that, well, does nothing, and teach CodeGen to ignore calls to it llvm-svn: 159383
2012-06-29 06:30:12 +08:00
entry:
Fix broken check lines. I really need to find a way to automate this, but I can't come up with a regex that has no false positives while handling tricky cases like custom check prefixes. llvm-svn: 162097
2012-08-17 20:28:26 +08:00
; CHECK-NOT: donothing
add a new @llvm.donothing intrinsic that, well, does nothing, and teach CodeGen to ignore calls to it llvm-svn: 159383
2012-06-29 06:30:12 +08:00
invoke void @llvm.donothing()
to label %invoke.cont unwind label %lpad
invoke.cont:
ret void
lpad:
Move the personality function from LandingPadInst to Function 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
2015-06-18 04:52:32 +08:00
%0 = landingpad { i8*, i32 }
add a new @llvm.donothing intrinsic that, well, does nothing, and teach CodeGen to ignore calls to it llvm-svn: 159383
2012-06-29 06:30:12 +08:00
filter [0 x i8*] zeroinitializer
%1 = extractvalue { i8*, i32 } %0, 0
tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
unreachable
}
; CHECK: f2
define void @f2() nounwind {
entry:
Fix broken check lines. I really need to find a way to automate this, but I can't come up with a regex that has no false positives while handling tricky cases like custom check prefixes. llvm-svn: 162097
2012-08-17 20:28:26 +08:00
; CHECK-NOT: donothing
add a new @llvm.donothing intrinsic that, well, does nothing, and teach CodeGen to ignore calls to it llvm-svn: 159383
2012-06-29 06:30:12 +08:00
call void @llvm.donothing()
ret void
}