1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=instcombine -S | FileCheck %s 3declare void @use(ptr) 4 5define void @foo(i64 %X) { 6; Currently we cannot handle expressions of the form Offset - X * Scale. 7; CHECK-LABEL: @foo( 8; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[X:%.*]], 2 9; CHECK-NEXT: [[TMP2:%.*]] = sub i64 24, [[TMP1]] 10; CHECK-NEXT: [[TMP3:%.*]] = alloca i8, i64 [[TMP2]], align 4 11; CHECK-NEXT: call void @use(ptr nonnull [[TMP3]]) 12; CHECK-NEXT: ret void 13; 14 %1 = mul nsw i64 %X, -4 15 %2 = add nsw i64 %1, 24 16 %3 = alloca i8, i64 %2, align 4 17 call void @use(ptr %3) 18 ret void 19} 20