llvm-6502/test/CodeGen/X86/bswap.ll

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; 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
}