| ; bswap should be constant folded when it is passed a constant argument |
| |
| ; RUN: llc < %s -march=x86 | \ |
| ; RUN: grep bswapl | count 3 |
| ; RUN: llc < %s -march=x86 | grep rolw | count 1 |
| |
| declare i16 @llvm.bswap.i16(i16) |
| |
| declare i32 @llvm.bswap.i32(i32) |
| |
| declare i64 @llvm.bswap.i64(i64) |
| |
| define i16 @W(i16 %A) { |
| %Z = call i16 @llvm.bswap.i16( i16 %A ) ; <i16> [#uses=1] |
| ret i16 %Z |
| } |
| |
| define i32 @X(i32 %A) { |
| %Z = call i32 @llvm.bswap.i32( i32 %A ) ; <i32> [#uses=1] |
| ret i32 %Z |
| } |
| |
| define i64 @Y(i64 %A) { |
| %Z = call i64 @llvm.bswap.i64( i64 %A ) ; <i64> [#uses=1] |
| ret i64 %Z |
| } |
| |