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| author | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-06 11:46:36 -0700 |
|---|---|---|
| committer | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-18 10:52:30 -0700 |
| commit | 2c3e0051c31c3f5b2328b447eadf1cf9c4427442 (patch) | |
| tree | c0104029af14e9f47c2ef58ca60e6137691f3c9b /test/CodeGen/SystemZ/risbg-03.ll | |
| parent | e1bc145815f4334641be19f1c45ecf85d25b6e5a (diff) | |
| download | external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.zip external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.tar.gz external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.tar.bz2 | |
Update aosp/master LLVM for rebase to r235153
Change-Id: I9bf53792f9fc30570e81a8d80d296c681d005ea7
(cherry picked from commit 0c7f116bb6950ef819323d855415b2f2b0aad987)
Diffstat (limited to 'test/CodeGen/SystemZ/risbg-03.ll')
| -rw-r--r-- | test/CodeGen/SystemZ/risbg-03.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/risbg-03.ll b/test/CodeGen/SystemZ/risbg-03.ll new file mode 100644 index 0000000..c3c08ad --- /dev/null +++ b/test/CodeGen/SystemZ/risbg-03.ll @@ -0,0 +1,30 @@ +; Test use of RISBG vs RISBGN on zEC12. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s + +; On zEC12, we generally prefer RISBGN. +define i64 @f1(i64 %a, i64 %b) { +; CHECK-LABEL: f1: +; CHECK: risbgn %r2, %r3, 60, 62, 0 +; CHECK: br %r14 + %anda = and i64 %a, -15 + %andb = and i64 %b, 14 + %or = or i64 %anda, %andb + ret i64 %or +} + +; But we may fall back to RISBG if we can use the condition code. +define i64 @f2(i64 %a, i64 %b, i32* %c) { +; CHECK-LABEL: f2: +; CHECK: risbg %r2, %r3, 60, 62, 0 +; CHECK-NEXT: ipm +; CHECK: br %r14 + %anda = and i64 %a, -15 + %andb = and i64 %b, 14 + %or = or i64 %anda, %andb + %cmp = icmp sgt i64 %or, 0 + %conv = zext i1 %cmp to i32 + store i32 %conv, i32* %c, align 4 + ret i64 %or +} + |