diff options
Diffstat (limited to 'test/Transforms/SimplifyLibCalls/StrCmp.ll')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/StrCmp.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyLibCalls/StrCmp.ll b/test/Transforms/SimplifyLibCalls/StrCmp.ll new file mode 100644 index 0000000..ba2a4e0 --- /dev/null +++ b/test/Transforms/SimplifyLibCalls/StrCmp.ll @@ -0,0 +1,27 @@ +; Test that the StrCmpOptimizer works correctly +; RUN: llvm-upgrade < %s | llvm-as | opt -simplify-libcalls | llvm-dis | \ +; RUN: not grep {call.*strcmp} + +declare int %strcmp(sbyte*,sbyte*) +declare int %puts(sbyte*) +%hello = constant [6 x sbyte] c"hello\00" +%hell = constant [5 x sbyte] c"hell\00" +%null = constant [1 x sbyte] c"\00" + +implementation ; Functions: + +int %main () { + %hello_p = getelementptr [6 x sbyte]* %hello, int 0, int 0 + %hell_p = getelementptr [5 x sbyte]* %hell, int 0, int 0 + %null_p = getelementptr [1 x sbyte]* %null, int 0, int 0 + %temp1 = call int %strcmp(sbyte* %hello_p, sbyte* %hello_p) + %temp2 = call int %strcmp(sbyte* %null_p, sbyte* %null_p) + %temp3 = call int %strcmp(sbyte* %hello_p, sbyte* %null_p) + %temp4 = call int %strcmp(sbyte* %null_p, sbyte* %hello_p) + %temp5 = call int %strcmp(sbyte* %hell_p, sbyte* %hello_p) + %rslt1 = add int %temp1, %temp2 + %rslt2 = add int %rslt1, %temp3 + %rslt3 = add int %rslt2, %temp4 + %rslt4 = add int %rslt3, %temp5 + ret int %rslt4 +} |