| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=dse -S < %s | FileCheck %s |
| |
| @global = external constant i8 |
| |
| define void @f() { |
| ; CHECK-LABEL: @f( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call noalias i8* @_Znwm(i64 32) |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ugt i8* [[TMP1]], @global |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[TMP2]]) |
| ; CHECK-NEXT: ret void |
| ; |
| %tmp1 = call noalias i8* @_Znwm(i64 32) |
| %tmp2 = icmp ugt i8* %tmp1, @global |
| call void @llvm.assume(i1 %tmp2) |
| store i8 0, i8* %tmp1, align 1 |
| ret void |
| } |
| |
| define void @f2() { |
| ; CHECK-LABEL: @f2( |
| ; CHECK-NEXT: [[TMP1:%.*]] = call noalias i8* @_Znwm(i64 32) |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ugt i8* [[TMP1]], @global |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[TMP2]]) |
| ; CHECK-NEXT: call void @quux(i8* @global) |
| ; CHECK-NEXT: ret void |
| ; |
| %tmp1 = call noalias i8* @_Znwm(i64 32) |
| %tmp2 = icmp ugt i8* %tmp1, @global |
| call void @llvm.assume(i1 %tmp2) |
| store i8 0, i8* %tmp1, align 1 |
| call void @quux(i8* @global) |
| ret void |
| } |
| |
| declare i8* @_Znwm(i64) |
| |
| declare void @llvm.assume(i1) |
| |
| declare void @quux(i8*) |
