mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-14 11:32:34 +00:00
d589099eec
needed since llvm-gcc 3.4 days. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133248 91177308-0d34-0410-b5e6-96231b3b80d8
72 lines
1.6 KiB
LLVM
72 lines
1.6 KiB
LLVM
; RUN: opt < %s -instcombine -S | not grep call.*bswap
|
|
|
|
define i1 @test1(i16 %tmp2) {
|
|
%tmp10 = call i16 @llvm.bswap.i16( i16 %tmp2 )
|
|
%tmp = icmp eq i16 %tmp10, 1
|
|
ret i1 %tmp
|
|
}
|
|
|
|
define i1 @test2(i32 %tmp) {
|
|
%tmp34 = tail call i32 @llvm.bswap.i32( i32 %tmp )
|
|
%tmp.upgrd.1 = icmp eq i32 %tmp34, 1
|
|
ret i1 %tmp.upgrd.1
|
|
}
|
|
|
|
declare i32 @llvm.bswap.i32(i32)
|
|
|
|
define i1 @test3(i64 %tmp) {
|
|
%tmp34 = tail call i64 @llvm.bswap.i64( i64 %tmp )
|
|
%tmp.upgrd.2 = icmp eq i64 %tmp34, 1
|
|
ret i1 %tmp.upgrd.2
|
|
}
|
|
|
|
declare i64 @llvm.bswap.i64(i64)
|
|
|
|
declare i16 @llvm.bswap.i16(i16)
|
|
|
|
; rdar://5992453
|
|
; A & 255
|
|
define i32 @test4(i32 %a) nounwind {
|
|
entry:
|
|
%tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
|
|
%tmp4 = lshr i32 %tmp2, 24
|
|
ret i32 %tmp4
|
|
}
|
|
|
|
; A
|
|
define i32 @test5(i32 %a) nounwind {
|
|
entry:
|
|
%tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
|
|
%tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 )
|
|
ret i32 %tmp4
|
|
}
|
|
|
|
; a >> 24
|
|
define i32 @test6(i32 %a) nounwind {
|
|
entry:
|
|
%tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
|
|
%tmp4 = and i32 %tmp2, 255
|
|
ret i32 %tmp4
|
|
}
|
|
|
|
; PR5284
|
|
define i16 @test7(i32 %A) {
|
|
%B = tail call i32 @llvm.bswap.i32(i32 %A) nounwind
|
|
%C = trunc i32 %B to i16
|
|
%D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
|
|
ret i16 %D
|
|
}
|
|
|
|
define i16 @test8(i64 %A) {
|
|
%B = tail call i64 @llvm.bswap.i64(i64 %A) nounwind
|
|
%C = trunc i64 %B to i16
|
|
%D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
|
|
ret i16 %D
|
|
}
|
|
|
|
; Misc: Fold bswap(undef) to undef.
|
|
define i64 @foo() {
|
|
%a = call i64 @llvm.bswap.i64(i64 undef)
|
|
ret i64 %a
|
|
}
|