; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=licm %s | FileCheck %s --check-prefix=NO_ASSUME
; RUN: opt -S -passes=licm --enable-knowledge-retention %s | FileCheck %s --check-prefix=USE_ASSUME
; ModuleID = '../pr23608.ll'
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%struct.PyFrameObject = type { i32 }
@a = common global ptr null, align 8
@__msan_origin_tls = external thread_local(initialexec) global i32
define void @fn1() {
; NO_ASSUME-LABEL: @fn1(
; NO_ASSUME-NEXT: entry:
; NO_ASSUME-NEXT: br label [[INDIRECTGOTO:%.*]]
; NO_ASSUME: while.cond:
; NO_ASSUME-NEXT: [[TMP:%.*]] = load ptr, ptr @a, align 8
; NO_ASSUME-NEXT: br label [[BB2:%.*]]
; NO_ASSUME: bb:
; NO_ASSUME-NEXT: call void @__msan_warning_noreturn()
; NO_ASSUME-NEXT: unreachable
; NO_ASSUME: bb2:
; NO_ASSUME-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP]] to i64
; NO_ASSUME-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[TMP4]], 0
; NO_ASSUME-NEXT: br i1 [[TOBOOL]], label [[BB13:%.*]], label [[BB15:%.*]]
; NO_ASSUME: bb13:
; NO_ASSUME-NEXT: [[TMP4_LCSSA:%.*]] = phi i64 [ [[TMP4]], [[BB2]] ]
; NO_ASSUME-NEXT: [[TMP8_LE:%.*]] = inttoptr i64 [[TMP4_LCSSA]] to ptr
; NO_ASSUME-NEXT: call void @__msan_warning_noreturn()
; NO_ASSUME-NEXT: unreachable
; NO_ASSUME: bb15:
; NO_ASSUME-NEXT: br i1 [[TOBOOL]], label [[WHILE_END:%.*]], label [[WHILE_COND:%.*]]
; NO_ASSUME: while.end:
; NO_ASSUME-NEXT: ret void
; NO_ASSUME: indirectgoto:
; NO_ASSUME-NEXT: indirectbr ptr null, [label [[INDIRECTGOTO]], label %while.cond]
;
; USE_ASSUME-LABEL: @fn1(
; USE_ASSUME-NEXT: entry:
; USE_ASSUME-NEXT: br label [[INDIRECTGOTO:%.*]]
; USE_ASSUME: while.cond:
; USE_ASSUME-NEXT: [[TMP:%.*]] = load ptr, ptr @a, align 8
; USE_ASSUME-NEXT: br label [[BB2:%.*]]
; USE_ASSUME: bb:
; USE_ASSUME-NEXT: call void @__msan_warning_noreturn()
; USE_ASSUME-NEXT: unreachable
; USE_ASSUME: bb2:
; USE_ASSUME-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(ptr [[TMP]], i64 4), "nonnull"(ptr [[TMP]]), "align"(ptr [[TMP]], i64 4) ]
; USE_ASSUME-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP]] to i64
; USE_ASSUME-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[TMP4]], 0
; USE_ASSUME-NEXT: br i1 [[TOBOOL]], label [[BB13:%.*]], label [[BB15:%.*]]
; USE_ASSUME: bb13:
; USE_ASSUME-NEXT: [[TMP4_LCSSA:%.*]] = phi i64 [ [[TMP4]], [[BB2]] ]
; USE_ASSUME-NEXT: [[TMP8_LE:%.*]] = inttoptr i64 [[TMP4_LCSSA]] to ptr
; USE_ASSUME-NEXT: call void @__msan_warning_noreturn()
; USE_ASSUME-NEXT: unreachable
; USE_ASSUME: bb15:
; USE_ASSUME-NEXT: br i1 [[TOBOOL]], label [[WHILE_END:%.*]], label [[WHILE_COND:%.*]]
; USE_ASSUME: while.end:
; USE_ASSUME-NEXT: ret void
; USE_ASSUME: indirectgoto:
; USE_ASSUME-NEXT: indirectbr ptr null, [label [[INDIRECTGOTO]], label %while.cond]
;
entry:
br label %indirectgoto
while.cond: ; preds = %indirectgoto, %bb15
%tmp = load ptr, ptr @a, align 8
%and = and i64 ptrtoint (ptr @a to i64), -70368744177665
%itop = inttoptr i64 %and to ptr
%_msld = load i64, ptr %itop, align 8
%add = add i64 %and, 35184372088832
%itop2 = inttoptr i64 %add to ptr
%tmp1 = load i32, ptr %itop2, align 8
br label %bb2
bb: ; preds = %while.cond
call void @__msan_warning_noreturn()
unreachable
bb2: ; preds = %while.cond
%tmp3 = load i32, ptr %tmp, align 4
%tmp4 = ptrtoint ptr %tmp to i64
%tmp8 = inttoptr i64 %tmp4 to ptr
%tobool = icmp eq i64 %tmp4, 0
br i1 %tobool, label %bb13, label %bb15
bb13: ; preds = %bb2
%.lcssa7 = phi ptr [ %tmp8, %bb2 ]
call void @__msan_warning_noreturn()
unreachable
bb15: ; preds = %bb2
br i1 %tobool, label %while.end, label %while.cond
while.end: ; preds = %bb15
ret void
indirectgoto: ; preds = %indirectgoto, %entry
indirectbr ptr null, [label %indirectgoto, label %while.cond]
}
declare void @__msan_warning_noreturn()
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