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