| ; RUN: llc -mtriple=arm64_32-apple-ios8.0 %s -o - | FileCheck %s |
| |
| ; We're provoking LocalStackSlotAllocation to create some shared frame bases |
| ; here: it wants multiple <fi#N> using instructions that can be satisfied by a |
| ; single base, but not within the addressing-mode. |
| ; |
| ; When that happens it's important that we don't mix our pointer sizes |
| ; (e.g. try to create an ldr from a w-register base). |
| define i8 @test_register_wrangling() { |
| ; CHECK-LABEL: test_register_wrangling: |
| ; CHECK: add [[TMP:x[0-9]+]], sp, |
| ; CHECK: add x[[BASE:[0-9]+]], [[TMP]], |
| ; CHECK: ldrb {{w[0-9]+}}, [x[[BASE]], #1] |
| ; CHECK: ldrb {{w[0-9]+}}, [x[[BASE]]] |
| |
| %var1 = alloca i8, i32 4100 |
| %var3 = alloca i8 |
| %dummy = alloca i8, i32 4100 |
| |
| %var1p1 = getelementptr i8, i8* %var1, i32 1 |
| %val1 = load i8, i8* %var1 |
| %val2 = load i8, i8* %var3 |
| |
| %sum = add i8 %val1, %val2 |
| ret i8 %sum |
| } |
