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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s | FileCheck %s
; RUN: opt -passes='simplifycfg<sink-common-insts;hoist-common-insts>,verify' -S %s | FileCheck %s
declare void @clobber1()
declare void @clobber2()
define void @sink(ptr %arg, i1 %c) {
; CHECK-LABEL: define void @sink(
; CHECK-SAME: ptr [[ARG:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: bb:
; CHECK-NEXT: br i1 [[C]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK: then:
; CHECK-NEXT: call void @clobber1()
; CHECK-NEXT: store ptr null, ptr [[ARG]], align 8
; CHECK-NEXT: br label [[EXIT:%.*]]
; CHECK: else:
; CHECK-NEXT: call void @clobber2()
; CHECK-NEXT: store ptr null, ptr [[ARG]], align 8, !mmra [[META0:![0-9]+]]
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
bb:
br i1 %c, label %then, label %else
then:
call void @clobber1()
store ptr null, ptr %arg, align 8
br label %exit
else:
call void @clobber2()
store ptr null, ptr %arg, align 8, !mmra !0
br label %exit
exit:
ret void
}
define void @hoist_store(ptr %arg, i1 %c) {
; CHECK-LABEL: define void @hoist_store(
; CHECK-SAME: ptr [[ARG:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: bb:
; CHECK-NEXT: br i1 [[C]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK: then:
; CHECK-NEXT: store ptr null, ptr [[ARG]], align 8
; CHECK-NEXT: call void @clobber1()
; CHECK-NEXT: br label [[EXIT:%.*]]
; CHECK: else:
; CHECK-NEXT: store ptr null, ptr [[ARG]], align 8, !mmra [[META0]]
; CHECK-NEXT: call void @clobber2()
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
bb:
br i1 %c, label %then, label %else
then:
store ptr null, ptr %arg, align 8
call void @clobber1()
br label %exit
else:
store ptr null, ptr %arg, align 8, !mmra !0
call void @clobber2()
br label %exit
exit:
ret void
}
define ptr @sink_load(ptr %arg, i1 %c) {
; CHECK-LABEL: define ptr @sink_load(
; CHECK-SAME: ptr [[ARG:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: bb:
; CHECK-NEXT: br i1 [[C]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK: then:
; CHECK-NEXT: call void @clobber1()
; CHECK-NEXT: [[L1:%.*]] = load ptr, ptr [[ARG]], align 8
; CHECK-NEXT: br label [[EXIT:%.*]]
; CHECK: else:
; CHECK-NEXT: call void @clobber2()
; CHECK-NEXT: [[L2:%.*]] = load ptr, ptr [[ARG]], align 8, !mmra [[META0]]
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[L1]], [[THEN]] ], [ [[L2]], [[ELSE]] ]
; CHECK-NEXT: ret ptr [[P]]
;
bb:
br i1 %c, label %then, label %else
then:
call void @clobber1()
%l1 = load ptr, ptr %arg, align 8
br label %exit
else:
call void @clobber2()
%l2 = load ptr, ptr %arg, align 8, !mmra !0
br label %exit
exit:
%p = phi ptr [ %l1, %then ], [ %l2, %else ]
ret ptr %p
}
define ptr @hoist_load(ptr %arg, i1 %c) {
; CHECK-LABEL: define ptr @hoist_load(
; CHECK-SAME: ptr [[ARG:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT: bb:
; CHECK-NEXT: br i1 [[C]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK: then:
; CHECK-NEXT: [[L1:%.*]] = load ptr, ptr [[ARG]], align 8
; CHECK-NEXT: call void @clobber1()
; CHECK-NEXT: br label [[EXIT:%.*]]
; CHECK: else:
; CHECK-NEXT: [[L2:%.*]] = load ptr, ptr [[ARG]], align 8, !mmra [[META0]]
; CHECK-NEXT: call void @clobber2()
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[L1]], [[THEN]] ], [ [[L2]], [[ELSE]] ]
; CHECK-NEXT: ret ptr [[P]]
;
bb:
br i1 %c, label %then, label %else
then:
%l1 = load ptr, ptr %arg, align 8
call void @clobber1()
br label %exit
else:
%l2 = load ptr, ptr %arg, align 8, !mmra !0
call void @clobber2()
br label %exit
exit:
%p = phi ptr [ %l1, %then ], [ %l2, %else ]
ret ptr %p
}
!0 = !{!"foo", !"bar"}
;.
; CHECK: [[META0]] = !{!"foo", !"bar"}
;.
|
