51 lines
1.3 KiB
LLVM
51 lines
1.3 KiB
LLVM
; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
|
|
|
|
; CHECK-LABEL: @invert_branch_on_arg_inf_loop(
|
|
; CHECK: entry:
|
|
; CHECK: %arg.inv = xor i1 %arg, true
|
|
define void @invert_branch_on_arg_inf_loop(i32 addrspace(1)* %out, i1 %arg) {
|
|
entry:
|
|
br i1 %arg, label %for.end, label %sesestart
|
|
sesestart:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
store i32 999, i32 addrspace(1)* %out, align 4
|
|
br i1 %arg, label %for.body, label %seseend
|
|
seseend:
|
|
ret void
|
|
|
|
for.end: ; preds = %Flow
|
|
ret void
|
|
}
|
|
|
|
|
|
; CHECK-LABEL: @invert_branch_on_arg_jump_into_loop(
|
|
; CHECK: entry:
|
|
; CHECK: %arg.inv = xor i1 %arg, true
|
|
; CHECK: Flow:
|
|
; CHECK: Flow1:
|
|
define void @invert_branch_on_arg_jump_into_loop(i32 addrspace(1)* %out, i32 %n, i1 %arg) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%i = phi i32 [0, %entry], [%i.inc, %end.loop]
|
|
%ptr = getelementptr i32, i32 addrspace(1)* %out, i32 %i
|
|
store i32 %i, i32 addrspace(1)* %ptr, align 4
|
|
br i1 %arg, label %mid.loop, label %end.loop
|
|
|
|
mid.loop:
|
|
store i32 333, i32 addrspace(1)* %out, align 4
|
|
br label %for.end
|
|
|
|
end.loop:
|
|
%i.inc = add i32 %i, 1
|
|
%cmp = icmp ne i32 %i.inc, %n
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret void
|
|
}
|
|
|