| ; Test 8-bit GPR stores. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; Test an i8 store, which should get converted into an i32 truncation. |
| define void @f1(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: stc %r3, 0(%r2) |
| ; CHECK: br %r14 |
| store i8 %val, ptr %dst |
| ret void |
| } |
| |
| ; Test an i32 truncating store. |
| define void @f2(ptr %dst, i32 %val) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: stc %r3, 0(%r2) |
| ; CHECK: br %r14 |
| %trunc = trunc i32 %val to i8 |
| store i8 %trunc, ptr %dst |
| ret void |
| } |
| |
| ; Test an i64 truncating store. |
| define void @f3(ptr %dst, i64 %val) { |
| ; CHECK-LABEL: f3: |
| ; CHECK: stc %r3, 0(%r2) |
| ; CHECK: br %r14 |
| %trunc = trunc i64 %val to i8 |
| store i8 %trunc, ptr %dst |
| ret void |
| } |
| |
| ; Check the high end of the STC range. |
| define void @f4(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f4: |
| ; CHECK: stc %r3, 4095(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 4095 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check the next byte up, which should use STCY instead of STC. |
| define void @f5(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f5: |
| ; CHECK: stcy %r3, 4096(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 4096 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check the high end of the STCY range. |
| define void @f6(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f6: |
| ; CHECK: stcy %r3, 524287(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 524287 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check the next byte up, which needs separate address logic. |
| ; Other sequences besides this one would be OK. |
| define void @f7(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f7: |
| ; CHECK: agfi %r2, 524288 |
| ; CHECK: stc %r3, 0(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 524288 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check the high end of the negative STCY range. |
| define void @f8(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f8: |
| ; CHECK: stcy %r3, -1(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 -1 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check the low end of the STCY range. |
| define void @f9(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f9: |
| ; CHECK: stcy %r3, -524288(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 -524288 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check the next byte down, which needs separate address logic. |
| ; Other sequences besides this one would be OK. |
| define void @f10(ptr %dst, i8 %val) { |
| ; CHECK-LABEL: f10: |
| ; CHECK: agfi %r2, -524289 |
| ; CHECK: stc %r3, 0(%r2) |
| ; CHECK: br %r14 |
| %ptr = getelementptr i8, ptr %dst, i64 -524289 |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check that STC allows an index. |
| define void @f11(i64 %dst, i64 %index, i8 %val) { |
| ; CHECK-LABEL: f11: |
| ; CHECK: stc %r4, 4095(%r3,%r2) |
| ; CHECK: br %r14 |
| %add1 = add i64 %dst, %index |
| %add2 = add i64 %add1, 4095 |
| %ptr = inttoptr i64 %add2 to ptr |
| store i8 %val, ptr %ptr |
| ret void |
| } |
| |
| ; Check that STCY allows an index. |
| define void @f12(i64 %dst, i64 %index, i8 %val) { |
| ; CHECK-LABEL: f12: |
| ; CHECK: stcy %r4, 4096(%r3,%r2) |
| ; CHECK: br %r14 |
| %add1 = add i64 %dst, %index |
| %add2 = add i64 %add1, 4096 |
| %ptr = inttoptr i64 %add2 to ptr |
| store i8 %val, ptr %ptr |
| ret void |
| } |