1; bswap should be constant folded when it is passed a constant argument
2
3; RUN: opt < %s -constprop -S | FileCheck %s
4
5declare i16 @llvm.bswap.i16(i16)
6
7declare i32 @llvm.bswap.i32(i32)
8
9declare i64 @llvm.bswap.i64(i64)
10
11declare i80 @llvm.bswap.i80(i80)
12
13; CHECK-LABEL: define i16 @W(
14define i16 @W() {
15        ; CHECK: ret i16 256
16        %Z = call i16 @llvm.bswap.i16( i16 1 )          ; <i16> [#uses=1]
17        ret i16 %Z
18}
19
20; CHECK-LABEL: define i32 @X(
21define i32 @X() {
22        ; CHECK: ret i32 16777216
23        %Z = call i32 @llvm.bswap.i32( i32 1 )          ; <i32> [#uses=1]
24        ret i32 %Z
25}
26
27; CHECK-LABEL: define i64 @Y(
28define i64 @Y() {
29        ; CHECK: ret i64 72057594037927936
30        %Z = call i64 @llvm.bswap.i64( i64 1 )          ; <i64> [#uses=1]
31        ret i64 %Z
32}
33
34; CHECK-LABEL: define i80 @Z(
35define i80 @Z() {
36        ; CHECK: ret i80 -450681596205739728166896
37        ;                0xA0908070605040302010
38        %Z = call i80 @llvm.bswap.i80( i80 76151636403560493650080 )
39        ;                                  0x102030405060708090A0
40        ret i80 %Z
41}
42