1; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s 2 3define i8 @f1(i8* %v) { 4entry: 5; CHECK-LABEL: f1: 6; CHECK: ldrb r0, [r0] 7 %tmp = load i8, i8* %v 8 ret i8 %tmp 9} 10 11define i8 @f2(i8* %v) { 12entry: 13; CHECK-LABEL: f2: 14; CHECK: ldrb r0, [r0, #-1] 15 %tmp2 = getelementptr i8, i8* %v, i8 1023 16 %tmp = load i8, i8* %tmp2 17 ret i8 %tmp 18} 19 20define i8 @f3(i32 %base) { 21entry: 22; CHECK-LABEL: f3: 23; CHECK: mov.w r1, #4096 24; CHECK: ldrb r0, [r0, r1] 25 %tmp1 = add i32 %base, 4096 26 %tmp2 = inttoptr i32 %tmp1 to i8* 27 %tmp3 = load i8, i8* %tmp2 28 ret i8 %tmp3 29} 30 31define i8 @f4(i32 %base) { 32entry: 33; CHECK-LABEL: f4: 34; CHECK: ldrb r0, [r0, #-128] 35 %tmp1 = sub i32 %base, 128 36 %tmp2 = inttoptr i32 %tmp1 to i8* 37 %tmp3 = load i8, i8* %tmp2 38 ret i8 %tmp3 39} 40 41define i8 @f5(i32 %base, i32 %offset) { 42entry: 43; CHECK-LABEL: f5: 44; CHECK: ldrb r0, [r0, r1] 45 %tmp1 = add i32 %base, %offset 46 %tmp2 = inttoptr i32 %tmp1 to i8* 47 %tmp3 = load i8, i8* %tmp2 48 ret i8 %tmp3 49} 50 51define i8 @f6(i32 %base, i32 %offset) { 52entry: 53; CHECK-LABEL: f6: 54; CHECK: ldrb.w r0, [r0, r1, lsl #2] 55 %tmp1 = shl i32 %offset, 2 56 %tmp2 = add i32 %base, %tmp1 57 %tmp3 = inttoptr i32 %tmp2 to i8* 58 %tmp4 = load i8, i8* %tmp3 59 ret i8 %tmp4 60} 61 62define i8 @f7(i32 %base, i32 %offset) { 63entry: 64; CHECK-LABEL: f7: 65; CHECK: lsrs r1, r1, #2 66; CHECK: ldrb r0, [r0, r1] 67 %tmp1 = lshr i32 %offset, 2 68 %tmp2 = add i32 %base, %tmp1 69 %tmp3 = inttoptr i32 %tmp2 to i8* 70 %tmp4 = load i8, i8* %tmp3 71 ret i8 %tmp4 72} 73