1 ; bswap should be constant folded when it is passed a constant argument 2 3 ; RUN: opt < %s -constprop -S | FileCheck %s 4 5 declare i16 @llvm.bswap.i16(i16) 6 7 declare i32 @llvm.bswap.i32(i32) 8 9 declare i64 @llvm.bswap.i64(i64) 10 11 declare i80 @llvm.bswap.i80(i80) 12 13 ; CHECK-LABEL: define i16 @W( 14 define 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( 21 define 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( 28 define 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( 35 define 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
