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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-10-01 12:22:49 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-10-01 12:22:49 +0000 |
| commit | 9813dbf396e63f6d4fd99fe0f6651e831cb7414b (patch) | |
| tree | 6ad5a9f5502149ac3e65afd8654182584b78bccb /test/CodeGen/SystemZ | |
| parent | 9a05f040e70494ab0092faa9ed10dc70ff1f4e66 (diff) | |
| download | llvm-9813dbf396e63f6d4fd99fe0f6651e831cb7414b.tar.gz llvm-9813dbf396e63f6d4fd99fe0f6651e831cb7414b.tar.bz2 llvm-9813dbf396e63f6d4fd99fe0f6651e831cb7414b.tar.xz | |
[SystemZ] Add truncating high-word stores (STCH and STHH)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191743 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/SystemZ')
| -rw-r--r-- | test/CodeGen/SystemZ/asm-18.ll | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/asm-18.ll b/test/CodeGen/SystemZ/asm-18.ll index 6eb0083f83..df2c920232 100644 --- a/test/CodeGen/SystemZ/asm-18.ll +++ b/test/CodeGen/SystemZ/asm-18.ll @@ -146,3 +146,49 @@ define void @f6(i16 *%ptr1, i16 *%ptr2) { "h,r,h,r"(i32 %ext1, i32 %ext2, i32 %ext3, i32 %ext4) ret void } + +; Test truncating stores of high and low registers into 8-bit memory. +define void @f7(i8 *%ptr1, i8 *%ptr2) { +; CHECK-LABEL: f7: +; CHECK: blah [[REG1:%r[0-5]]], [[REG2:%r[0-5]]] +; CHECK-DAG: stch [[REG1]], 0(%r2) +; CHECK-DAG: stc [[REG2]], 0(%r3) +; CHECK-DAG: stch [[REG1]], 4096(%r2) +; CHECK-DAG: stcy [[REG2]], 524287(%r3) +; CHECK: br %r14 + %res = call { i32, i32 } asm "blah $0, $1", "=h,=r"() + %res1 = extractvalue { i32, i32 } %res, 0 + %res2 = extractvalue { i32, i32 } %res, 1 + %trunc1 = trunc i32 %res1 to i8 + %trunc2 = trunc i32 %res2 to i8 + %ptr3 = getelementptr i8 *%ptr1, i64 4096 + %ptr4 = getelementptr i8 *%ptr2, i64 524287 + store i8 %trunc1, i8 *%ptr1 + store i8 %trunc2, i8 *%ptr2 + store i8 %trunc1, i8 *%ptr3 + store i8 %trunc2, i8 *%ptr4 + ret void +} + +; Test truncating stores of high and low registers into 16-bit memory. +define void @f8(i16 *%ptr1, i16 *%ptr2) { +; CHECK-LABEL: f8: +; CHECK: blah [[REG1:%r[0-5]]], [[REG2:%r[0-5]]] +; CHECK-DAG: sthh [[REG1]], 0(%r2) +; CHECK-DAG: sth [[REG2]], 0(%r3) +; CHECK-DAG: sthh [[REG1]], 4096(%r2) +; CHECK-DAG: sthy [[REG2]], 524286(%r3) +; CHECK: br %r14 + %res = call { i32, i32 } asm "blah $0, $1", "=h,=r"() + %res1 = extractvalue { i32, i32 } %res, 0 + %res2 = extractvalue { i32, i32 } %res, 1 + %trunc1 = trunc i32 %res1 to i16 + %trunc2 = trunc i32 %res2 to i16 + %ptr3 = getelementptr i16 *%ptr1, i64 2048 + %ptr4 = getelementptr i16 *%ptr2, i64 262143 + store i16 %trunc1, i16 *%ptr1 + store i16 %trunc2, i16 *%ptr2 + store i16 %trunc1, i16 *%ptr3 + store i16 %trunc2, i16 *%ptr4 + ret void +} |