forked from OSchip/llvm-project
65 lines
2.2 KiB
LLVM
65 lines
2.2 KiB
LLVM
; RUN: opt -S -licm -loop-guard-widening -licm -debug-pass=Structure < %s 2>&1 | FileCheck %s
|
|
|
|
; Main point of this test is to check the scheduling -- there should be
|
|
; no analysis passes needed between LICM and LoopGuardWidening
|
|
|
|
; CHECK: Loop Pass Manager
|
|
; CHECK: Loop Invariant Code Motion
|
|
; CHECK: Widen guards (within a single loop, as a loop pass)
|
|
; CHECK: Loop Invariant Code Motion
|
|
|
|
declare void @llvm.experimental.guard(i1,...)
|
|
|
|
define void @iter(i32 %a, i32 %b, i1* %c_p) {
|
|
; CHECK-LABEL @iter
|
|
; CHECK: %cond_0 = icmp ult i32 %a, 10
|
|
; CHECK: %cond_1 = icmp ult i32 %b, 10
|
|
; CHECK: %wide.chk = and i1 %cond_0, %cond_1
|
|
; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 %wide.chk) [ "deopt"() ]
|
|
; CHECK-LABEL: loop:
|
|
|
|
entry:
|
|
%cond_0 = icmp ult i32 %a, 10
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ]
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop.preheader, %loop
|
|
%cond_1 = icmp ult i32 %b, 10
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ]
|
|
%cnd = load i1, i1* %c_p
|
|
br i1 %cnd, label %loop, label %leave.loopexit
|
|
|
|
leave.loopexit: ; preds = %loop
|
|
br label %leave
|
|
|
|
leave: ; preds = %leave.loopexit, %entry
|
|
ret void
|
|
}
|
|
|
|
define void @within_loop(i32 %a, i32 %b, i1* %c_p) {
|
|
; CHECK-LABEL @within_loop
|
|
; CHECK: %cond_0 = icmp ult i32 %a, 10
|
|
; CHECK: %cond_1 = icmp ult i32 %b, 10
|
|
; CHECK: %wide.chk = and i1 %cond_0, %cond_1
|
|
; CHECK-LABEL: loop:
|
|
; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 %wide.chk) [ "deopt"() ]
|
|
|
|
entry:
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop.preheader, %loop
|
|
%cond_0 = icmp ult i32 %a, 10
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ]
|
|
%cond_1 = icmp ult i32 %b, 10
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ]
|
|
%cnd = load i1, i1* %c_p
|
|
br i1 %cnd, label %loop, label %leave.loopexit
|
|
|
|
leave.loopexit: ; preds = %loop
|
|
br label %leave
|
|
|
|
leave: ; preds = %leave.loopexit, %entry
|
|
ret void
|
|
}
|
|
|