62 lines
2.3 KiB
LLVM
62 lines
2.3 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
||
|
|
; RUN: opt -newgvn %s -S | FileCheck %s
|
||
|
|
|
||
|
|
declare void @use(i32)
|
||
|
|
|
||
|
|
; Make sure !tbaa metadata is preserved when only ssa_copy calls introduced by
|
||
|
|
; PredicateInfo are replaced.
|
||
|
|
|
||
|
|
define i32 @test(i32* %p1, i32* %p2, i1 %c) {
|
||
|
|
; CHECK-LABEL: @test(
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: [[LV:%.*]] = load i32, i32* [[P1:%.*]], align 8, !tbaa !0
|
||
|
|
; CHECK-NEXT: [[CMP_1:%.*]] = icmp slt i32 [[LV]], 1
|
||
|
|
; CHECK-NEXT: br i1 [[CMP_1]], label [[EXIT:%.*]], label [[IF_FALSE:%.*]]
|
||
|
|
; CHECK: if.false:
|
||
|
|
; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT]], label [[FOR_CHECK:%.*]]
|
||
|
|
; CHECK: for.check:
|
||
|
|
; CHECK-NEXT: [[CMP_2:%.*]] = icmp sgt i32 [[LV]], 0
|
||
|
|
; CHECK-NEXT: br i1 [[CMP_2]], label [[FOR_PH:%.*]], label [[EXIT]]
|
||
|
|
; CHECK: for.ph:
|
||
|
|
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
|
||
|
|
; CHECK: for.body:
|
||
|
|
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[FOR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
|
||
|
|
; CHECK-NEXT: call void @use(i32 [[IV]])
|
||
|
|
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
|
||
|
|
; CHECK-NEXT: [[CMP_3:%.*]] = icmp ne i32 [[IV_NEXT]], [[LV]]
|
||
|
|
; CHECK-NEXT: br i1 [[CMP_3]], label [[FOR_BODY]], label [[EXIT]]
|
||
|
|
; CHECK: exit:
|
||
|
|
; CHECK-NEXT: ret i32 [[LV]]
|
||
|
|
;
|
||
|
|
entry:
|
||
|
|
%lv = load i32, i32* %p1, align 8, !tbaa !0
|
||
|
|
%cmp.1 = icmp slt i32 %lv, 1
|
||
|
|
br i1 %cmp.1, label %exit, label %if.false
|
||
|
|
|
||
|
|
if.false: ; preds = %entry
|
||
|
|
br i1 %c, label %exit, label %for.check
|
||
|
|
|
||
|
|
for.check: ; preds = %if.false
|
||
|
|
%cmp.2 = icmp sgt i32 %lv, 0
|
||
|
|
br i1 %cmp.2, label %for.ph, label %exit
|
||
|
|
|
||
|
|
for.ph: ; preds = %for.check
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
for.body: ; preds = %for.body, %for.ph
|
||
|
|
%iv = phi i32 [ 0, %for.ph ], [ %iv.next, %for.body ]
|
||
|
|
call void @use(i32 %iv)
|
||
|
|
%iv.next = add nuw nsw i32 %iv, 1
|
||
|
|
%cmp.3 = icmp ne i32 %iv.next, %lv
|
||
|
|
br i1 %cmp.3, label %for.body, label %exit
|
||
|
|
|
||
|
|
exit: ; preds = %for.body, %for.check, %if.false, %entry
|
||
|
|
ret i32 %lv
|
||
|
|
}
|
||
|
|
|
||
|
|
!0 = !{!1, !2, i64 0}
|
||
|
|
!1 = !{!"FULL", !2, i64 0, !2, i64 4, !3, i64 8}
|
||
|
|
!2 = !{!"int", !3, i64 0}
|
||
|
|
!3 = !{!"omnipotent char", !4, i64 0}
|
||
|
|
!4 = !{!"Simple C/C++ TBAA"}
|