1 ; RUN: llc < %s -march=x86 | not grep and 2 ; RUN: llc < %s -march=x86-64 > %t 3 ; RUN: not grep and %t 4 ; RUN: not grep movzbq %t 5 ; RUN: not grep movzwq %t 6 ; RUN: not grep movzlq %t 7 8 ; These should use movzbl instead of 'and 255'. 9 ; This related to not having a ZERO_EXTEND_REG opcode. 10 11 define i32 @a(i32 %d) nounwind { 12 %e = add i32 %d, 1 13 %retval = and i32 %e, 255 14 ret i32 %retval 15 } 16 define i32 @b(float %d) nounwind { 17 %tmp12 = fptoui float %d to i8 18 %retval = zext i8 %tmp12 to i32 19 ret i32 %retval 20 } 21 define i32 @c(i32 %d) nounwind { 22 %e = add i32 %d, 1 23 %retval = and i32 %e, 65535 24 ret i32 %retval 25 } 26 define i64 @d(i64 %d) nounwind { 27 %e = add i64 %d, 1 28 %retval = and i64 %e, 255 29 ret i64 %retval 30 } 31 define i64 @e(i64 %d) nounwind { 32 %e = add i64 %d, 1 33 %retval = and i64 %e, 65535 34 ret i64 %retval 35 } 36 define i64 @f(i64 %d) nounwind { 37 %e = add i64 %d, 1 38 %retval = and i64 %e, 4294967295 39 ret i64 %retval 40 } 41 42 define i32 @g(i8 %d) nounwind { 43 %e = add i8 %d, 1 44 %retval = zext i8 %e to i32 45 ret i32 %retval 46 } 47 define i32 @h(i16 %d) nounwind { 48 %e = add i16 %d, 1 49 %retval = zext i16 %e to i32 50 ret i32 %retval 51 } 52 define i64 @i(i8 %d) nounwind { 53 %e = add i8 %d, 1 54 %retval = zext i8 %e to i64 55 ret i64 %retval 56 } 57 define i64 @j(i16 %d) nounwind { 58 %e = add i16 %d, 1 59 %retval = zext i16 %e to i64 60 ret i64 %retval 61 } 62 define i64 @k(i32 %d) nounwind { 63 %e = add i32 %d, 1 64 %retval = zext i32 %e to i64 65 ret i64 %retval 66 } 67
