| ; 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: [[F_IBLOCK_LCSSA:%.*]] = phi ptr [ [[TMP]], [[BB2]] ] |
| ; NO_ASSUME-NEXT: [[TMP4_LE:%.*]] = ptrtoint ptr [[F_IBLOCK_LCSSA]] to i64 |
| ; NO_ASSUME-NEXT: [[TMP8_LE:%.*]] = inttoptr i64 [[TMP4_LE]] 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: call void @llvm.assume(i1 true) [ "dereferenceable"(ptr inttoptr (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665) to ptr), i64 8), "nonnull"(ptr inttoptr (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665) to ptr)), "align"(ptr inttoptr (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665) to ptr), i64 8) ] |
| ; USE_ASSUME-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(ptr inttoptr (i64 add (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665), i64 35184372088832) to ptr), i64 4), "nonnull"(ptr inttoptr (i64 add (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665), i64 35184372088832) to ptr)), "align"(ptr inttoptr (i64 add (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665), i64 35184372088832) to ptr), i64 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: [[F_IBLOCK_LCSSA:%.*]] = phi ptr [ [[TMP]], [[BB2]] ] |
| ; USE_ASSUME-NEXT: [[TMP4_LE:%.*]] = ptrtoint ptr [[F_IBLOCK_LCSSA]] to i64 |
| ; USE_ASSUME-NEXT: [[TMP8_LE:%.*]] = inttoptr i64 [[TMP4_LE]] 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 |
| %_msld = load i64, ptr inttoptr (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665) to ptr), align 8 |
| %tmp1 = load i32, ptr inttoptr (i64 add (i64 and (i64 ptrtoint (ptr @a to i64), i64 -70368744177665), i64 35184372088832) to ptr), 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() |