diff options
Diffstat (limited to 'test/CodeGen/AArch64/cmp-const-max.ll')
-rw-r--r-- | test/CodeGen/AArch64/cmp-const-max.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/cmp-const-max.ll b/test/CodeGen/AArch64/cmp-const-max.ll new file mode 100644 index 0000000..0431e39 --- /dev/null +++ b/test/CodeGen/AArch64/cmp-const-max.ll @@ -0,0 +1,36 @@ +; RUN: llc -verify-machineinstrs -aarch64-atomic-cfg-tidy=0 < %s -mtriple=aarch64-none-eabihf -fast-isel=false | FileCheck %s + + +define i32 @ule_64_max(i64 %p) { +entry: +; CHECK-LABEL: ule_64_max: +; CHECK: cmn x0, #1 +; CHECK: b.hi [[RET_ZERO:.LBB[0-9]+_[0-9]+]] + %cmp = icmp ule i64 %p, 18446744073709551615 ; 0xffffffffffffffff + br i1 %cmp, label %ret_one, label %ret_zero + +ret_one: + ret i32 1 + +ret_zero: +; CHECK: [[RET_ZERO]]: +; CHECK-NEXT: mov w0, wzr + ret i32 0 +} + +define i32 @ugt_64_max(i64 %p) { +entry: +; CHECK-LABEL: ugt_64_max: +; CHECK: cmn x0, #1 +; CHECK: b.ls [[RET_ZERO:.LBB[0-9]+_[0-9]+]] + %cmp = icmp ugt i64 %p, 18446744073709551615 ; 0xffffffffffffffff + br i1 %cmp, label %ret_one, label %ret_zero + +ret_one: + ret i32 1 + +ret_zero: +; CHECK: [[RET_ZERO]]: +; CHECK-NEXT: mov w0, wzr + ret i32 0 +} |