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Diffstat (limited to 'test/CodeGen/SystemZ/memchr-01.ll')
| -rw-r--r-- | test/CodeGen/SystemZ/memchr-01.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/memchr-01.ll b/test/CodeGen/SystemZ/memchr-01.ll new file mode 100644 index 0000000000..c51690b984 --- /dev/null +++ b/test/CodeGen/SystemZ/memchr-01.ll @@ -0,0 +1,21 @@ +; Test memchr using SRST, with a weird but usable prototype. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +declare i8 *@memchr(i8 *%src, i16 %char, i32 %len) + +; Test a simple forwarded call. +define i8 *@f1(i8 *%src, i16 %char, i32 %len) { +; CHECK-LABEL: f1: +; CHECK-DAG: lgr [[REG:%r[1-5]]], %r2 +; CHECK-DAG: algfr %r2, %r4 +; CHECK-DAG: llcr %r0, %r3 +; CHECK: [[LABEL:\.[^:]*]]: +; CHECK: srst %r2, [[REG]] +; CHECK-NEXT: jo [[LABEL]] +; CHECK: jl {{\.L.*}} +; CHECK: lghi %r2, 0 +; CHECK: br %r14 + %res = call i8 *@memchr(i8 *%src, i16 %char, i32 %len) + ret i8 *%res +} |