; Check that unaligned accesses are allowed in general. We check the ; few exceptions (like CRL) in their respective test files. ; ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s ; Check that these four byte stores become a single word store. define void @f1(ptr %ptr) { ; CHECK: f1 ; CHECK: iilf [[REG:%r[0-5]]], 66051 ; CHECK: st [[REG]], 0(%r2) ; CHECK: br %r14 %off1 = getelementptr i8, ptr %ptr, i64 1 %off2 = getelementptr i8, ptr %ptr, i64 2 %off3 = getelementptr i8, ptr %ptr, i64 3 store i8 0, ptr %ptr store i8 1, ptr %off1 store i8 2, ptr %off2 store i8 3, ptr %off3 ret void } ; Check that unaligned 2-byte accesses are allowed. define i16 @f2(ptr %src, ptr %dst) { ; CHECK-LABEL: f2: ; CHECK: lh %r2, 0(%r2) ; CHECK: sth %r2, 0(%r3) ; CHECK: br %r14 %val = load i16, ptr %src, align 1 store i16 %val, ptr %dst, align 1 ret i16 %val } ; Check that unaligned 4-byte accesses are allowed. define i32 @f3(ptr %src1, ptr %src2, ptr %dst) { ; CHECK-LABEL: f3: ; CHECK: l %r2, 0(%r2) ; CHECK: s %r2, 0(%r3) ; CHECK: st %r2, 0(%r4) ; CHECK: br %r14 %val1 = load i32, ptr %src1, align 1 %val2 = load i32, ptr %src2, align 2 %sub = sub i32 %val1, %val2 store i32 %sub, ptr %dst, align 1 ret i32 %sub } ; Check that unaligned 8-byte accesses are allowed. define i64 @f4(ptr %src1, ptr %src2, ptr %dst) { ; CHECK-LABEL: f4: ; CHECK: lg %r2, 0(%r2) ; CHECK: sg %r2, 0(%r3) ; CHECK: stg %r2, 0(%r4) ; CHECK: br %r14 %val1 = load i64, ptr %src1, align 1 %val2 = load i64, ptr %src2, align 2 %sub = sub i64 %val1, %val2 store i64 %sub, ptr %dst, align 4 ret i64 %sub }