| ; 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, ptr %var1, i32 1 | |
| %val1 = load i8, ptr %var1 | |
| %val2 = load i8, ptr %var3 | |
| %sum = add i8 %val1, %val2 | |
| ret i8 %sum | |
| } |