1; RUN: llc -mcpu=pwr7 -mattr=-altivec -verify-machineinstrs \ 2; RUN: -mtriple=powerpc-unknown-aix < %s | FileCheck %s --check-prefix 32BIT 3 4; RUN: llc -mcpu=pwr7 -mattr=-altivec -verify-machineinstrs \ 5; RUN: -mtriple=powerpc64-unknown-aix < %s | FileCheck %s --check-prefix 64BIT 6 7; Use an overaligned buffer to force base-pointer usage. Test verifies: 8; - base pointer register (r30) is saved/defined/restored. 9; - frame pointer register (r31) is saved/defined/restored. 10; - stack frame is allocated with correct alignment. 11; - Address of %AlignedBuffer is calculated based off offset from the stack 12; pointer. 13 14define float @caller(float %f) { 15 %AlignedBuffer = alloca [32 x i32], align 32 16 call void @callee(ptr %AlignedBuffer) 17 ret float %f 18} 19 20declare void @callee(ptr) 21 22; 32BIT-LABEL: .caller: 23; 32BIT: stw 30, -16(1) 24; 32BIT: mr 30, 1 25; 32BIT: clrlwi 0, 1, 27 26; 32BIT: subfic 0, 0, -224 27; 32BIT: stwux 1, 1, 0 28; 32BIT: addi 3, 1, 64 29; 32BIT: stw 31, -12(30) 30; 32BIT: bl .callee 31; 32BIT: lwz 31, -12(30) 32; 32BIT: mr 1, 30 33; 32BIT: lwz 30, -16(1) 34 35; 64BIT-LABEL: .caller: 36; 64BIT: std 30, -24(1) 37; 64BIT: mr 30, 1 38; 64BIT: clrldi 0, 1, 59 39; 64BIT: subfic 0, 0, -288 40; 64BIT: stdux 1, 1, 0 41; 64BIT: addi 3, 1, 128 42; 64BIT: std 31, -16(30) 43; 64BIT: bl .callee 44; 64BIT: ld 31, -16(30) 45; 64BIT: mr 1, 30 46; 64BIT: ld 30, -24(1) 47