| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; Test that the strncmp library call simplifier works correctly. |
| ; RUN: opt < %s -passes=instcombine -S | FileCheck %s |
| |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" |
| |
| @hello = constant [6 x i8] c"hello\00" |
| @hell = constant [5 x i8] c"hell\00" |
| |
| declare i16 @strncmp(ptr, ptr, i32) |
| |
| define i16 @test_nosimplify() { |
| ; CHECK-LABEL: @test_nosimplify( |
| ; CHECK-NEXT: [[TEMP1:%.*]] = call i16 @strncmp(ptr nonnull @hell, ptr nonnull @hello, i32 10) |
| ; CHECK-NEXT: ret i16 [[TEMP1]] |
| ; |
| |
| %temp1 = call i16 @strncmp(ptr @hell, ptr @hello, i32 10) |
| ret i16 %temp1 |
| } |
