forked from OSchip/llvm-project
70 lines
1.5 KiB
LLVM
70 lines
1.5 KiB
LLVM
|
; RUN: opt < %s -sccp -S | FileCheck %s
|
||
|
|
|
||
|
|
; CHECK-LABEL: shift_undef_64
|
||
|
|
define void @shift_undef_64(i64* %p) {
|
||
|
|
%r1 = lshr i64 -1, 4294967296 ; 2^32
|
||
|
|
; CHECK: store i64 undef
|
||
|
|
store i64 %r1, i64* %p
|
||
|
|
|
||
|
|
%r2 = ashr i64 -1, 4294967297 ; 2^32 + 1
|
||
|
|
; CHECK: store i64 undef
|
||
|
|
store i64 %r2, i64* %p
|
||
|
|
|
||
|
|
%r3 = shl i64 -1, 4294967298 ; 2^32 + 2
|
||
|
|
; CHECK: store i64 undef
|
||
|
|
store i64 %r3, i64* %p
|
||
|
|
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: shift_undef_65
|
||
|
|
define void @shift_undef_65(i65* %p) {
|
||
|
|
%r1 = lshr i65 2, 18446744073709551617
|
||
|
|
; CHECK: store i65 undef
|
||
|
|
store i65 %r1, i65* %p
|
||
|
|
|
||
|
|
%r2 = ashr i65 4, 18446744073709551617
|
||
|
|
; CHECK: store i65 undef
|
||
|
|
store i65 %r2, i65* %p
|
||
|
|
|
||
|
|
%r3 = shl i65 1, 18446744073709551617
|
||
|
|
; CHECK: store i65 undef
|
||
|
|
store i65 %r3, i65* %p
|
||
|
|
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: shift_undef_256
|
||
|
|
define void @shift_undef_256(i256* %p) {
|
||
|
|
%r1 = lshr i256 2, 18446744073709551617
|
||
|
|
; CHECK: store i256 undef
|
||
|
|
store i256 %r1, i256* %p
|
||
|
|
|
||
|
|
%r2 = ashr i256 4, 18446744073709551618
|
||
|
|
; CHECK: store i256 undef
|
||
|
|
store i256 %r2, i256* %p
|
||
|
|
|
||
|
|
%r3 = shl i256 1, 18446744073709551619
|
||
|
|
; CHECK: store i256 undef
|
||
|
|
store i256 %r3, i256* %p
|
||
|
|
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: shift_undef_511
|
||
|
|
define void @shift_undef_511(i511* %p) {
|
||
|
|
%r1 = lshr i511 -1, 1208925819614629174706276 ; 2^80 + 100
|
||
|
|
; CHECK: store i511 undef
|
||
|
|
store i511 %r1, i511* %p
|
||
|
|
|
||
|
|
%r2 = ashr i511 -2, 1208925819614629174706200
|
||
|
|
; CHECK: store i511 undef
|
||
|
|
store i511 %r2, i511* %p
|
||
|
|
|
||
|
|
%r3 = shl i511 -3, 1208925819614629174706180
|
||
|
|
; CHECK: store i511 undef
|
||
|
|
store i511 %r3, i511* %p
|
||
|
|
|
||
|
|
ret void
|
||
|
|
}
|