diff options
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/strlen-01.ll | 39 | ||||
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/strlen-02.ll | 39 |
2 files changed, 78 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SystemZ/strlen-01.ll b/llvm/test/CodeGen/SystemZ/strlen-01.ll new file mode 100644 index 00000000000..16161d4d2c8 --- /dev/null +++ b/llvm/test/CodeGen/SystemZ/strlen-01.ll @@ -0,0 +1,39 @@ +; Test strlen using SRST, i64 version. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +declare i64 @strlen(i8 *%src) +declare i64 @strnlen(i8 *%src, i64 %len) + +; Test strlen with its proper i64 prototype. It would also be valid for +; the uses of %r3 and REG after the LGR to be swapped. +define i64 @f1(i32 %dummy, i8 *%src) { +; CHECK-LABEL: f1: +; CHECK-DAG: lhi %r0, 0 +; CHECK-DAG: lghi %r2, 0 +; CHECK-DAG: lgr [[REG:%r[145]]], %r3 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: srst %r2, [[REG]] +; CHECK-NEXT: jo [[LABEL]] +; CHECK-NEXT: BB#{{[0-9]+}} +; CHECK-NEXT: sgr %r2, %r3 +; CHECK: br %r14 + %res = call i64 @strlen(i8 *%src) + ret i64 %res +} + +; Test strnlen with its proper i64 prototype. +define i64 @f2(i64 %len, i8 *%src) { +; CHECK-LABEL: f2: +; CHECK-DAG: agr %r2, %r3 +; CHECK-DAG: lhi %r0, 0 +; CHECK-DAG: lgr [[REG:%r[145]]], %r3 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: srst %r2, [[REG]] +; CHECK-NEXT: jo [[LABEL]] +; CHECK-NEXT: BB#{{[0-9]+}} +; CHECK-NEXT: sgr %r2, %r3 +; CHECK: br %r14 + %res = call i64 @strnlen(i8 *%src, i64 %len) + ret i64 %res +} diff --git a/llvm/test/CodeGen/SystemZ/strlen-02.ll b/llvm/test/CodeGen/SystemZ/strlen-02.ll new file mode 100644 index 00000000000..e1abbff4b4e --- /dev/null +++ b/llvm/test/CodeGen/SystemZ/strlen-02.ll @@ -0,0 +1,39 @@ +; Test strlen using SRST, i32 version. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +declare i32 @strlen(i8 *%src) +declare i32 @strnlen(i8 *%src, i32 %len) + +; Test strlen with an i32-based prototype. It would also be valid for +; the uses of %r3 and REG after the LGR to be swapped. +define i32 @f1(i32 %dummy, i8 *%src) { +; CHECK-LABEL: f1: +; CHECK-DAG: lhi %r0, 0 +; CHECK-DAG: lghi %r2, 0 +; CHECK-DAG: lgr [[REG:%r[145]]], %r3 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: srst %r2, [[REG]] +; CHECK-NEXT: jo [[LABEL]] +; CHECK-NEXT: BB#{{[0-9]+}} +; CHECK-NEXT: sgr %r2, %r3 +; CHECK: br %r14 + %res = call i32 @strlen(i8 *%src) + ret i32 %res +} + +; Test strnlen with an i32-based prototype. +define i32 @f2(i32 zeroext %len, i8 *%src) { +; CHECK-LABEL: f2: +; CHECK-DAG: agr %r2, %r3 +; CHECK-DAG: lhi %r0, 0 +; CHECK-DAG: lgr [[REG:%r[145]]], %r3 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK-NEXT: srst %r2, [[REG]] +; CHECK-NEXT: jo [[LABEL]] +; CHECK-NEXT: BB#{{[0-9]+}} +; CHECK-NEXT: sgr %r2, %r3 +; CHECK: br %r14 + %res = call i32 @strnlen(i8 *%src, i32 %len) + ret i32 %res +} |
