1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -licm %s | FileCheck %s --check-prefix=NO_ASSUME 3; RUN: opt -S -licm --enable-knowledge-retention %s | FileCheck %s --check-prefix=USE_ASSUME 4; ModuleID = '../pr23608.ll' 5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 6target triple = "x86_64-unknown-linux-gnu" 7 8%struct.PyFrameObject = type { i32 } 9 10@a = common global %struct.PyFrameObject* null, align 8 11@__msan_origin_tls = external thread_local(initialexec) global i32 12 13define void @fn1() { 14; NO_ASSUME-LABEL: @fn1( 15; NO_ASSUME-NEXT: entry: 16; NO_ASSUME-NEXT: br label [[INDIRECTGOTO:%.*]] 17; NO_ASSUME: while.cond: 18; NO_ASSUME-NEXT: [[TMP:%.*]] = load %struct.PyFrameObject*, %struct.PyFrameObject** @a, align 8 19; NO_ASSUME-NEXT: [[F_IBLOCK:%.*]] = getelementptr inbounds [[STRUCT_PYFRAMEOBJECT:%.*]], %struct.PyFrameObject* [[TMP]], i64 0, i32 0 20; NO_ASSUME-NEXT: br label [[BB2:%.*]] 21; NO_ASSUME: bb: 22; NO_ASSUME-NEXT: call void @__msan_warning_noreturn() 23; NO_ASSUME-NEXT: unreachable 24; NO_ASSUME: bb2: 25; NO_ASSUME-NEXT: [[TMP4:%.*]] = ptrtoint i32* [[F_IBLOCK]] to i64 26; NO_ASSUME-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[TMP4]], 0 27; NO_ASSUME-NEXT: br i1 [[TOBOOL]], label [[BB13:%.*]], label [[BB15:%.*]] 28; NO_ASSUME: bb13: 29; NO_ASSUME-NEXT: [[F_IBLOCK_LCSSA:%.*]] = phi i32* [ [[F_IBLOCK]], [[BB2]] ] 30; NO_ASSUME-NEXT: [[TMP4_LE:%.*]] = ptrtoint i32* [[F_IBLOCK_LCSSA]] to i64 31; NO_ASSUME-NEXT: [[TMP8_LE:%.*]] = inttoptr i64 [[TMP4_LE]] to i32* 32; NO_ASSUME-NEXT: call void @__msan_warning_noreturn() 33; NO_ASSUME-NEXT: unreachable 34; NO_ASSUME: bb15: 35; NO_ASSUME-NEXT: br i1 [[TOBOOL]], label [[WHILE_END:%.*]], label [[WHILE_COND:%.*]] 36; NO_ASSUME: while.end: 37; NO_ASSUME-NEXT: ret void 38; NO_ASSUME: indirectgoto: 39; NO_ASSUME-NEXT: indirectbr i8* null, [label [[INDIRECTGOTO]], label %while.cond] 40; 41; USE_ASSUME-LABEL: @fn1( 42; USE_ASSUME-NEXT: entry: 43; USE_ASSUME-NEXT: br label [[INDIRECTGOTO:%.*]] 44; USE_ASSUME: while.cond: 45; USE_ASSUME-NEXT: [[TMP:%.*]] = load %struct.PyFrameObject*, %struct.PyFrameObject** @a, align 8 46; USE_ASSUME-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(i64* inttoptr (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665) to i64*), i64 8), "nonnull"(i64* inttoptr (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665) to i64*)), "align"(i64* inttoptr (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665) to i64*), i64 8) ] 47; USE_ASSUME-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(i32* inttoptr (i64 add (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665), i64 35184372088832) to i32*), i64 4), "nonnull"(i32* inttoptr (i64 add (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665), i64 35184372088832) to i32*)), "align"(i32* inttoptr (i64 add (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665), i64 35184372088832) to i32*), i64 8) ] 48; USE_ASSUME-NEXT: [[F_IBLOCK:%.*]] = getelementptr inbounds [[STRUCT_PYFRAMEOBJECT:%.*]], %struct.PyFrameObject* [[TMP]], i64 0, i32 0 49; USE_ASSUME-NEXT: br label [[BB2:%.*]] 50; USE_ASSUME: bb: 51; USE_ASSUME-NEXT: call void @__msan_warning_noreturn() 52; USE_ASSUME-NEXT: unreachable 53; USE_ASSUME: bb2: 54; USE_ASSUME-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(%struct.PyFrameObject* [[TMP]], i64 4), "nonnull"(%struct.PyFrameObject* [[TMP]]), "align"(%struct.PyFrameObject* [[TMP]], i64 4) ] 55; USE_ASSUME-NEXT: [[TMP4:%.*]] = ptrtoint i32* [[F_IBLOCK]] to i64 56; USE_ASSUME-NEXT: [[TOBOOL:%.*]] = icmp eq i64 [[TMP4]], 0 57; USE_ASSUME-NEXT: br i1 [[TOBOOL]], label [[BB13:%.*]], label [[BB15:%.*]] 58; USE_ASSUME: bb13: 59; USE_ASSUME-NEXT: [[F_IBLOCK_LCSSA:%.*]] = phi i32* [ [[F_IBLOCK]], [[BB2]] ] 60; USE_ASSUME-NEXT: [[TMP4_LE:%.*]] = ptrtoint i32* [[F_IBLOCK_LCSSA]] to i64 61; USE_ASSUME-NEXT: [[TMP8_LE:%.*]] = inttoptr i64 [[TMP4_LE]] to i32* 62; USE_ASSUME-NEXT: call void @__msan_warning_noreturn() 63; USE_ASSUME-NEXT: unreachable 64; USE_ASSUME: bb15: 65; USE_ASSUME-NEXT: br i1 [[TOBOOL]], label [[WHILE_END:%.*]], label [[WHILE_COND:%.*]] 66; USE_ASSUME: while.end: 67; USE_ASSUME-NEXT: ret void 68; USE_ASSUME: indirectgoto: 69; USE_ASSUME-NEXT: indirectbr i8* null, [label [[INDIRECTGOTO]], label %while.cond] 70; 71entry: 72 br label %indirectgoto 73 74while.cond: ; preds = %indirectgoto, %bb15 75 %tmp = load %struct.PyFrameObject*, %struct.PyFrameObject** @a, align 8 76 %_msld = load i64, i64* inttoptr (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665) to i64*), align 8 77 %tmp1 = load i32, i32* inttoptr (i64 add (i64 and (i64 ptrtoint (%struct.PyFrameObject** @a to i64), i64 -70368744177665), i64 35184372088832) to i32*), align 8 78 %f_iblock = getelementptr inbounds %struct.PyFrameObject, %struct.PyFrameObject* %tmp, i64 0, i32 0 79 br label %bb2 80 81bb: ; preds = %while.cond 82 call void @__msan_warning_noreturn() 83 unreachable 84 85bb2: ; preds = %while.cond 86 %tmp3 = load i32, i32* %f_iblock, align 4 87 %tmp4 = ptrtoint i32* %f_iblock to i64 88 %tmp8 = inttoptr i64 %tmp4 to i32* 89 %tobool = icmp eq i64 %tmp4, 0 90 br i1 %tobool, label %bb13, label %bb15 91 92bb13: ; preds = %bb2 93 %.lcssa7 = phi i32* [ %tmp8, %bb2 ] 94 call void @__msan_warning_noreturn() 95 unreachable 96 97bb15: ; preds = %bb2 98 br i1 %tobool, label %while.end, label %while.cond 99 100while.end: ; preds = %bb15 101 ret void 102 103indirectgoto: ; preds = %indirectgoto, %entry 104 indirectbr i8* null, [label %indirectgoto, label %while.cond] 105} 106 107declare void @__msan_warning_noreturn() 108