| ; RUN: llvm-as < %s | llc -march=x86-64 | grep {movzbl %\[abcd\]h,} | count 4 |
| ; RUN: llvm-as < %s | llc -march=x86 > %t |
| ; RUN: grep {incb %ah} %t | count 3 |
| ; RUN: grep {movzbl %ah,} %t | count 3 |
| |
| ; Use h registers. On x86-64, codegen doesn't support general allocation |
| ; of h registers yet, due to x86 encoding complications. |
| |
| define void @bar64(i64 inreg %x, i8* inreg %p) nounwind { |
| %t0 = lshr i64 %x, 8 |
| %t1 = trunc i64 %t0 to i8 |
| %t2 = add i8 %t1, 1 |
| store i8 %t2, i8* %p |
| ret void |
| } |
| |
| define void @bar32(i32 inreg %x, i8* inreg %p) nounwind { |
| %t0 = lshr i32 %x, 8 |
| %t1 = trunc i32 %t0 to i8 |
| %t2 = add i8 %t1, 1 |
| store i8 %t2, i8* %p |
| ret void |
| } |
| |
| define void @bar16(i16 inreg %x, i8* inreg %p) nounwind { |
| %t0 = lshr i16 %x, 8 |
| %t1 = trunc i16 %t0 to i8 |
| %t2 = add i8 %t1, 1 |
| store i8 %t2, i8* %p |
| ret void |
| } |
| |
| define i64 @qux64(i64 inreg %x) nounwind { |
| %t0 = lshr i64 %x, 8 |
| %t1 = and i64 %t0, 255 |
| ret i64 %t1 |
| } |
| |
| define i32 @qux32(i32 inreg %x) nounwind { |
| %t0 = lshr i32 %x, 8 |
| %t1 = and i32 %t0, 255 |
| ret i32 %t1 |
| } |
| |
| define i16 @qux16(i16 inreg %x) nounwind { |
| %t0 = lshr i16 %x, 8 |
| ret i16 %t0 |
| } |