diff options
| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-16 11:29:37 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-16 11:29:37 +0000 |
| commit | 4fc7355a21e1fa838406e15459aaf54a58fcf909 (patch) | |
| tree | 0198bef41de5fcb25d5bf89940247980f28334a7 /test | |
| parent | e1b2af731e2a45344a7c502232f66c55cd746da0 (diff) | |
| download | external_llvm-4fc7355a21e1fa838406e15459aaf54a58fcf909.zip external_llvm-4fc7355a21e1fa838406e15459aaf54a58fcf909.tar.gz external_llvm-4fc7355a21e1fa838406e15459aaf54a58fcf909.tar.bz2 | |
[SystemZ] Use MVST to implement strcpy and stpcpy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188546 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/SystemZ/strcpy-01.ll | 50 | ||||
| -rw-r--r-- | test/MC/Disassembler/SystemZ/insns.txt | 12 | ||||
| -rw-r--r-- | test/MC/SystemZ/insn-good.s | 10 |
3 files changed, 72 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/strcpy-01.ll b/test/CodeGen/SystemZ/strcpy-01.ll new file mode 100644 index 0000000..29bab62 --- /dev/null +++ b/test/CodeGen/SystemZ/strcpy-01.ll @@ -0,0 +1,50 @@ +; Test strcpy using MVST. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +declare i8 *@strcpy(i8 *%dest, i8 *%src) +declare i8 *@stpcpy(i8 *%dest, i8 *%src) + +; Check strcpy. +define i8 *@f1(i8 *%dest, i8 *%src) { +; CHECK-LABEL: f1: +; CHECK-DAG: lhi %r0, 0 +; CHECK-DAG: lgr [[REG:%r[145]]], %r2 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: mvst [[REG]], %r3 +; CHECK-NEXT: jo [[LABEL]] +; CHECK-NOT: %r2 +; CHECK: br %r14 + %res = call i8 *@strcpy(i8 *%dest, i8 *%src) + ret i8 *%res +} + +; Check stpcpy. +define i8 *@f2(i8 *%dest, i8 *%src) { +; CHECK-LABEL: f2: +; CHECK: lhi %r0, 0 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: mvst %r2, %r3 +; CHECK-NEXT: jo [[LABEL]] +; CHECK-NOT: %r2 +; CHECK: br %r14 + %res = call i8 *@stpcpy(i8 *%dest, i8 *%src) + ret i8 *%res +} + +; Check correct operation with other loads and stores. The load must +; come before the loop and the store afterwards. +define i32 @f3(i32 %dummy, i8 *%dest, i8 *%src, i32 *%resptr, i32 *%storeptr) { +; CHECK-LABEL: f3: +; CHECK-DAG: lhi %r0, 0 +; CHECK-DAG: l %r2, 0(%r5) +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: mvst %r3, %r4 +; CHECK-NEXT: jo [[LABEL]] +; CHECK: mvhi 0(%r6), 0 +; CHECK: br %r14 + %res = load i32 *%resptr + %unused = call i8 *@strcpy(i8 *%dest, i8 *%src) + store i32 0, i32 *%storeptr + ret i32 %res +} diff --git a/test/MC/Disassembler/SystemZ/insns.txt b/test/MC/Disassembler/SystemZ/insns.txt index 5f2bc89..c25bb9f 100644 --- a/test/MC/Disassembler/SystemZ/insns.txt +++ b/test/MC/Disassembler/SystemZ/insns.txt @@ -4678,6 +4678,18 @@ # CHECK: mviy 524287(%r15), 42 0xeb 0x2a 0xff 0xff 0x7f 0x52 +# CHECK: mvst %r0, %r0 +0xb2 0x55 0x00 0x00 + +# CHECK: mvst %r0, %r15 +0xb2 0x55 0x00 0x0f + +# CHECK: mvst %r15, %r0 +0xb2 0x55 0x00 0xf0 + +# CHECK: mvst %r7, %r8 +0xb2 0x55 0x00 0x78 + # CHECK: mxbr %f0, %f0 0xb3 0x4c 0x00 0x00 diff --git a/test/MC/SystemZ/insn-good.s b/test/MC/SystemZ/insn-good.s index a452992..da2b77e 100644 --- a/test/MC/SystemZ/insn-good.s +++ b/test/MC/SystemZ/insn-good.s @@ -5652,6 +5652,16 @@ mviy 524287(%r1), 42 mviy 524287(%r15), 42 +#CHECK: mvst %r0, %r0 # encoding: [0xb2,0x55,0x00,0x00] +#CHECK: mvst %r0, %r15 # encoding: [0xb2,0x55,0x00,0x0f] +#CHECK: mvst %r15, %r0 # encoding: [0xb2,0x55,0x00,0xf0] +#CHECK: mvst %r7, %r8 # encoding: [0xb2,0x55,0x00,0x78] + + mvst %r0,%r0 + mvst %r0,%r15 + mvst %r15,%r0 + mvst %r7,%r8 + #CHECK: mxbr %f0, %f0 # encoding: [0xb3,0x4c,0x00,0x00] #CHECK: mxbr %f0, %f13 # encoding: [0xb3,0x4c,0x00,0x0d] #CHECK: mxbr %f8, %f5 # encoding: [0xb3,0x4c,0x00,0x85] |