29 lines · plain
1; RUN: llc -mtriple=arm %s -o - | FileCheck %s2; RUN: llc -mtriple=thumbv7 %s -o - | FileCheck %s3 4; We ended up feeding a deleted node back to TableGen when we converted "Off *5; 410" into "(Off * 205) << 1", where the multiplication already existed in the6; DAG.7 8; CHECK-LABEL: addrmode_cse_mutation:9; CHECK: {{mul|muls}} [[OFFSET:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}10; CHECK: {{ldrb|ldrb.w}} {{r[0-9]+}}, [r0, [[OFFSET]], lsl #3]11define i32 @addrmode_cse_mutation(ptr %base, i32 %count) {12 %offset = mul i32 %count, 27728813 %ptr = getelementptr i8, ptr %base, i32 %offset14 %val = load volatile i8, ptr %ptr15 %res = mul i32 %count, 3466116 ret i32 %res17}18 19; CHECK-LABEL: addrmode_cse_multi_use:20; CHECK-NOT: {{ldrb|ldrb.w}} {{r[0-9]+}}, [{{r[0-9]+}}, {{r[0-9]+}}, lsl #3]21define i32 @addrmode_cse_multi_use(ptr %base, i32 %count) {22 %offset = mul i32 %count, 27728823 %ptr = getelementptr i8, ptr %base, i32 %offset24 %val = load volatile i8, ptr %ptr25 %res = mul i32 %count, 3466126 %res.1 = add i32 %res, %offset27 ret i32 %res.128}29