diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2014-11-24 09:08:18 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2014-11-24 09:08:18 +0000 |
| commit | 5ca98fd98791947eba83a1ed3f2c8191ef7afa6c (patch) | |
| tree | f5944309621cee4fe0976be6f9ac619b7ebfc4c2 /test/CodeGen/ARM/intrinsics-overflow.ll | |
| parent | 68bcb7db193e4bc81430063148253d30a791023e (diff) | |
Diffstat (limited to 'test/CodeGen/ARM/intrinsics-overflow.ll')
| -rw-r--r-- | test/CodeGen/ARM/intrinsics-overflow.ll | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/intrinsics-overflow.ll b/test/CodeGen/ARM/intrinsics-overflow.ll new file mode 100644 index 000000000000..af3dd9dd4117 --- /dev/null +++ b/test/CodeGen/ARM/intrinsics-overflow.ll @@ -0,0 +1,57 @@ +; RUN: llc < %s -mtriple=arm-linux -mcpu=generic | FileCheck %s + +define i32 @uadd_overflow(i32 %a, i32 %b) #0 { + %sadd = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %a, i32 %b) + %1 = extractvalue { i32, i1 } %sadd, 1 + %2 = zext i1 %1 to i32 + ret i32 %2 + + ; CHECK-LABEL: uadd_overflow: + ; CHECK: add r[[R2:[0-9]+]], r[[R0:[0-9]+]], r[[R1:[0-9]+]] + ; CHECK: mov r[[R1]], #1 + ; CHECK: cmp r[[R2]], r[[R0]] + ; CHECK: movhs r[[R1]], #0 +} + + +define i32 @sadd_overflow(i32 %a, i32 %b) #0 { + %sadd = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %a, i32 %b) + %1 = extractvalue { i32, i1 } %sadd, 1 + %2 = zext i1 %1 to i32 + ret i32 %2 + + ; CHECK-LABEL: sadd_overflow: + ; CHECK: add r[[R2:[0-9]+]], r[[R0:[0-9]+]], r[[R1:[0-9]+]] + ; CHECK: mov r[[R1]], #1 + ; CHECK: cmp r[[R2]], r[[R0]] + ; CHECK: movvc r[[R1]], #0 +} + +define i32 @usub_overflow(i32 %a, i32 %b) #0 { + %sadd = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b) + %1 = extractvalue { i32, i1 } %sadd, 1 + %2 = zext i1 %1 to i32 + ret i32 %2 + + ; CHECK-LABEL: usub_overflow: + ; CHECK: mov r[[R2]], #1 + ; CHECK: cmp r[[R0]], r[[R1]] + ; CHECK: movhs r[[R2]], #0 +} + +define i32 @ssub_overflow(i32 %a, i32 %b) #0 { + %sadd = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 %b) + %1 = extractvalue { i32, i1 } %sadd, 1 + %2 = zext i1 %1 to i32 + ret i32 %2 + + ; CHECK-LABEL: ssub_overflow: + ; CHECK: mov r[[R2]], #1 + ; CHECK: cmp r[[R0]], r[[R1]] + ; CHECK: movvc r[[R2]], #0 +} + +declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) #1 +declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32) #2 +declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) #3 +declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32) #4 |