llvm-project/llvm/test/Transforms/Inline/deleted-scc.ll

55 lines
1.6 KiB
LLVM

; RUN: opt -passes=inline < %s -S | FileCheck %s
; CHECK-NOT: define
; CHECK: define void @e()
; CHECK-NOT: define
@b = external local_unnamed_addr global i32, align 4
define void @e() local_unnamed_addr {
entry:
call fastcc void @d()
ret void
}
define internal fastcc void @f() unnamed_addr {
entry:
call fastcc void @d()
ret void
}
define internal fastcc void @d() unnamed_addr {
entry:
br label %L
L: ; preds = %cleanup9, %entry
%cleanup.dest.slot.0 = phi i32 [ undef, %entry ], [ %cleanup.dest.slot.3, %cleanup9 ]
store i32 0, i32* @b, align 4
%tobool.not = icmp eq i32 0, 0
br i1 %tobool.not, label %if.then, label %while.cond
while.cond: ; preds = %cleanup9, %L
%cleanup.dest.slot.2 = phi i32 [ %cleanup.dest.slot.0, %L ], [ 0, %cleanup9 ]
%0 = load i32, i32* @b, align 4
%tobool3.not = icmp eq i32 %0, 0
br i1 %tobool3.not, label %cleanup9, label %while.body4
while.body4: ; preds = %while.cond
call fastcc void @f()
br label %cleanup9
cleanup9: ; preds = %while.cond, %while.body4
%cleanup.dest.slot.3 = phi i32 [ %cleanup.dest.slot.2, %while.body4 ], [ 0, %while.cond ]
switch i32 %cleanup.dest.slot.3, label %common.ret [
i32 0, label %while.cond
i32 2, label %L
]
common.ret: ; preds = %cleanup9, %if.then
ret void
if.then: ; preds = %L
call void @e()
br label %common.ret
}