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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -prune-eh -enable-new-pm=0 < %s | FileCheck --check-prefixes=ALL,OLDPM %s
; RUN: opt -S -passes='function-attrs,function(simplifycfg)' < %s | FileCheck --check-prefixes=ALL,NEWPM %s
declare void @may_throw()
; @callee below may be an optimized form of this function, which can
; throw at runtime (see r265762 for more details):
;
; define linkonce_odr void @callee(i32* %ptr) noinline {
; entry:
; %val0 = load atomic i32, i32* %ptr unordered, align 4
; %val1 = load atomic i32, i32* %ptr unordered, align 4
; %cmp = icmp eq i32 %val0, %val1
; br i1 %cmp, label %left, label %right
; left:
; ret void
; right:
; call void @may_throw()
; ret void
; }
define linkonce_odr void @callee(i32* %ptr) noinline {
; ALL-LABEL: @callee(
; ALL-NEXT: ret void
;
ret void
}
define i32 @caller(i32* %ptr) personality i32 3 {
; OLDPM-LABEL: @caller(
; OLDPM-NEXT: entry:
; OLDPM-NEXT: invoke void @callee(i32* [[PTR:%.*]])
; OLDPM-NEXT: to label [[NORMAL:%.*]] unwind label [[UNWIND:%.*]]
; OLDPM: normal:
; OLDPM-NEXT: ret i32 1
; OLDPM: unwind:
; OLDPM-NEXT: [[RES:%.*]] = landingpad { i8*, i32 }
; OLDPM-NEXT: cleanup
; OLDPM-NEXT: ret i32 2
;
; NEWPM-LABEL: @caller(
; NEWPM-NEXT: entry:
; NEWPM-NEXT: invoke void @callee(i32* [[PTR:%.*]])
; NEWPM-NEXT: to label [[COMMON_RET:%.*]] unwind label [[UNWIND:%.*]]
; NEWPM: common.ret:
; NEWPM-NEXT: [[COMMON_RET_OP:%.*]] = phi i32 [ 2, [[UNWIND]] ], [ 1, [[ENTRY:%.*]] ]
; NEWPM-NEXT: ret i32 [[COMMON_RET_OP]]
; NEWPM: unwind:
; NEWPM-NEXT: [[RES:%.*]] = landingpad { i8*, i32 }
; NEWPM-NEXT: cleanup
; NEWPM-NEXT: br label [[COMMON_RET]]
;
entry:
invoke void @callee(i32* %ptr)
to label %normal unwind label %unwind
normal:
ret i32 1
unwind:
%res = landingpad { i8*, i32 }
cleanup
ret i32 2
}
|
