llvm-6502/test/Transforms/Inline/inline_returns_twice.ll
David Majnemer cc714e2142 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-17 20:52:32 +00:00

85 lines
1.6 KiB
LLVM

; RUN: opt < %s -inline -S | FileCheck %s
; Check that functions with "returns_twice" calls are only inlined,
; if they are themselves marked as such.
declare i32 @a() returns_twice
define i32 @inner1() {
entry:
%call = call i32 @a() returns_twice
%add = add nsw i32 1, %call
ret i32 %add
}
define i32 @outer1() {
entry:
; CHECK-LABEL: define i32 @outer1(
; CHECK: call i32 @inner1()
%call = call i32 @inner1()
%add = add nsw i32 1, %call
ret i32 %add
}
define i32 @inner2() returns_twice {
entry:
%call = call i32 @a() returns_twice
%add = add nsw i32 1, %call
ret i32 %add
}
define i32 @outer2() {
entry:
; CHECK-LABEL: define i32 @outer2(
; CHECK: call i32 @a()
%call = call i32 @inner2() returns_twice
%add = add nsw i32 1, %call
ret i32 %add
}
define i32 @inner3() personality i8* null {
entry:
%invoke = invoke i32 @a() returns_twice
to label %cont unwind label %lpad
cont:
%add = add nsw i32 1, %invoke
ret i32 %add
lpad:
%lp = landingpad i32 cleanup
resume i32 %lp
}
define i32 @outer3() {
entry:
; CHECK-LABEL: define i32 @outer3(
; CHECK: call i32 @inner3()
%call = call i32 @inner3()
%add = add nsw i32 1, %call
ret i32 %add
}
define i32 @inner4() returns_twice personality i8* null {
entry:
%invoke = invoke i32 @a() returns_twice
to label %cont unwind label %lpad
cont:
%add = add nsw i32 1, %invoke
ret i32 %add
lpad:
%lp = landingpad i32 cleanup
resume i32 %lp
}
define i32 @outer4() {
entry:
; CHECK-LABEL: define i32 @outer4(
; CHECK: invoke i32 @a()
%call = call i32 @inner4() returns_twice
%add = add nsw i32 1, %call
ret i32 %add
}