| ; Test that the StrCatOptimizer works correctly |
| ; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | not grep 'call.*strlen' |
| |
| declare uint %strlen(sbyte*) |
| %hello = constant [6 x sbyte] c"hello\00" |
| %null = constant [1 x sbyte] c"\00" |
| %null_hello = constant [7 x sbyte] c"\00hello\00" |
| |
| implementation ; Functions: |
| |
| uint %test1() { |
| %hello_p = getelementptr [6 x sbyte]* %hello, int 0, int 0 |
| %hello_l = call uint %strlen(sbyte* %hello_p) |
| ret uint %hello_l |
| } |
| |
| uint %test2() { |
| %null_p = getelementptr [1 x sbyte]* %null, int 0, int 0 |
| %null_l = call uint %strlen(sbyte* %null_p) |
| ret uint %null_l |
| } |
| |
| uint %test3() { |
| %null_hello_p = getelementptr [7 x sbyte]* %null_hello, int 0, int 0 |
| %null_hello_l = call uint %strlen(sbyte* %null_hello_p) |
| ret uint %null_hello_l |
| } |
| |
| bool %test4() { |
| %hello_p = getelementptr [6 x sbyte]* %hello, int 0, int 0 |
| %hello_l = call uint %strlen(sbyte* %hello_p) |
| %eq_hello = seteq uint %hello_l, 0 |
| ret bool %eq_hello |
| } |
| |
| bool %test5() { |
| %null_p = getelementptr [1 x sbyte]* %null, int 0, int 0 |
| %null_l = call uint %strlen(sbyte* %null_p) |
| %eq_null = seteq uint %null_l, 0 |
| ret bool %eq_null |
| } |
| |
| bool %test6() { |
| %hello_p = getelementptr [6 x sbyte]* %hello, int 0, int 0 |
| %hello_l = call uint %strlen(sbyte* %hello_p) |
| %ne_hello = setne uint %hello_l, 0 |
| ret bool %ne_hello |
| } |
| |
| bool %test7() { |
| %null_p = getelementptr [1 x sbyte]* %null, int 0, int 0 |
| %null_l = call uint %strlen(sbyte* %null_p) |
| %ne_null = setne uint %null_l, 0 |
| ret bool %ne_null |
| } |