| ; RUN: llc < %s -march=x86-64 > %t |
| ; RUN: grep mov %t | count 6 |
| ; RUN: grep {movb %ah, (%rsi)} %t | count 3 |
| ; RUN: llc < %s -march=x86 > %t |
| ; RUN: grep mov %t | count 3 |
| ; RUN: grep {movb %ah, (%e} %t | count 3 |
| |
| ; Use h-register extract and store. |
| |
| define void @foo16(i16 inreg %p, i8* inreg %z) nounwind { |
| %q = lshr i16 %p, 8 |
| %t = trunc i16 %q to i8 |
| store i8 %t, i8* %z |
| ret void |
| } |
| define void @foo32(i32 inreg %p, i8* inreg %z) nounwind { |
| %q = lshr i32 %p, 8 |
| %t = trunc i32 %q to i8 |
| store i8 %t, i8* %z |
| ret void |
| } |
| define void @foo64(i64 inreg %p, i8* inreg %z) nounwind { |
| %q = lshr i64 %p, 8 |
| %t = trunc i64 %q to i8 |
| store i8 %t, i8* %z |
| ret void |
| } |