diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/icmp.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/icmp.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/icmp.ll b/llvm/test/Transforms/InstCombine/icmp.ll index 279d86d4051..ccb57d24451 100644 --- a/llvm/test/Transforms/InstCombine/icmp.ll +++ b/llvm/test/Transforms/InstCombine/icmp.ll @@ -1522,3 +1522,39 @@ define zeroext i1 @icmp_cmpxchg_strong(i32* %sc, i32 %old_val, i32 %new_val) { %icmp = icmp eq i32 %xtrc, %old_val ret i1 %icmp } + +; CHECK-LABEL: @f1 +; CHECK-NEXT: %[[cmp:.*]] = icmp sge i64 %a, %b +; CHECK-NEXT: ret i1 %[[cmp]] +define i1 @f1(i64 %a, i64 %b) { + %t = sub nsw i64 %a, %b + %v = icmp sge i64 %t, 0 + ret i1 %v +} + +; CHECK-LABEL: @f2 +; CHECK-NEXT: %[[cmp:.*]] = icmp sgt i64 %a, %b +; CHECK-NEXT: ret i1 %[[cmp]] +define i1 @f2(i64 %a, i64 %b) { + %t = sub nsw i64 %a, %b + %v = icmp sgt i64 %t, 0 + ret i1 %v +} + +; CHECK-LABEL: @f3 +; CHECK-NEXT: %[[cmp:.*]] = icmp slt i64 %a, %b +; CHECK-NEXT: ret i1 %[[cmp]] +define i1 @f3(i64 %a, i64 %b) { + %t = sub nsw i64 %a, %b + %v = icmp slt i64 %t, 0 + ret i1 %v +} + +; CHECK-LABEL: @f4 +; CHECK-NEXT: %[[cmp:.*]] = icmp sle i64 %a, %b +; CHECK-NEXT: ret i1 %[[cmp]] +define i1 @f4(i64 %a, i64 %b) { + %t = sub nsw i64 %a, %b + %v = icmp sle i64 %t, 0 + ret i1 %v +} |
