mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-16 08:27:21 +00:00
61639fb856
This was left implicit and never ever checked, which means we could have a CMPZ against some non-zero value and we were carrying on with BFI conversion regardless. Caught by Oliver Stannard using csmith; regression test added. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253195 91177308-0d34-0410-b5e6-96231b3b80d8
172 lines
4.2 KiB
LLVM
172 lines
4.2 KiB
LLVM
; RUN: llc -mtriple=arm -mattr=+v6t2 %s -o - | FileCheck %s
|
|
|
|
%struct.F = type { [3 x i8], i8 }
|
|
|
|
@X = common global %struct.F zeroinitializer, align 4 ; <%struct.F*> [#uses=1]
|
|
|
|
define void @f1([1 x i32] %f.coerce0) nounwind {
|
|
entry:
|
|
; CHECK: f1
|
|
; CHECK: mov r2, #10
|
|
; CHECK: bfi r1, r2, #22, #4
|
|
%0 = load i32, i32* bitcast (%struct.F* @X to i32*), align 4 ; <i32> [#uses=1]
|
|
%1 = and i32 %0, -62914561 ; <i32> [#uses=1]
|
|
%2 = or i32 %1, 41943040 ; <i32> [#uses=1]
|
|
store i32 %2, i32* bitcast (%struct.F* @X to i32*), align 4
|
|
ret void
|
|
}
|
|
|
|
define i32 @f2(i32 %A, i32 %B) nounwind {
|
|
entry:
|
|
; CHECK: f2
|
|
; CHECK: lsr{{.*}}#7
|
|
; CHECK: bfi r0, r1, #7, #16
|
|
%and = and i32 %A, -8388481 ; <i32> [#uses=1]
|
|
%and2 = and i32 %B, 8388480 ; <i32> [#uses=1]
|
|
%or = or i32 %and2, %and ; <i32> [#uses=1]
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @f3(i32 %A, i32 %B) nounwind {
|
|
entry:
|
|
; CHECK: f3
|
|
; CHECK: lsr{{.*}} #7
|
|
; CHECK: bfi {{.*}}, #7, #16
|
|
%and = and i32 %A, 8388480 ; <i32> [#uses=1]
|
|
%and2 = and i32 %B, -8388481 ; <i32> [#uses=1]
|
|
%or = or i32 %and2, %and ; <i32> [#uses=1]
|
|
ret i32 %or
|
|
}
|
|
|
|
; rdar://8752056
|
|
define i32 @f4(i32 %a) nounwind {
|
|
; CHECK: f4
|
|
; CHECK: movw [[R1:r[0-9]+]], #3137
|
|
; CHECK: bfi [[R1]], {{r[0-9]+}}, #15, #5
|
|
%1 = shl i32 %a, 15
|
|
%ins7 = and i32 %1, 1015808
|
|
%ins12 = or i32 %ins7, 3137
|
|
ret i32 %ins12
|
|
}
|
|
|
|
; rdar://8458663
|
|
define i32 @f5(i32 %a, i32 %b) nounwind {
|
|
entry:
|
|
; CHECK-LABEL: f5:
|
|
; CHECK-NOT: bfc
|
|
; CHECK: bfi r0, r1, #20, #4
|
|
%0 = and i32 %a, -15728641
|
|
%1 = shl i32 %b, 20
|
|
%2 = and i32 %1, 15728640
|
|
%3 = or i32 %2, %0
|
|
ret i32 %3
|
|
}
|
|
|
|
; rdar://9609030
|
|
define i32 @f6(i32 %a, i32 %b) nounwind readnone {
|
|
entry:
|
|
; CHECK-LABEL: f6:
|
|
; CHECK-NOT: bic
|
|
; CHECK: bfi r0, r1, #8, #9
|
|
%and = and i32 %a, -130817
|
|
%and2 = shl i32 %b, 8
|
|
%shl = and i32 %and2, 130816
|
|
%or = or i32 %shl, %and
|
|
ret i32 %or
|
|
}
|
|
|
|
define i32 @f7(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: bfi r1, r0, #4, #1
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 16
|
|
%cmp = icmp ne i32 %and, 0
|
|
%sel = select i1 %cmp, i32 %or, i32 %y2
|
|
ret i32 %sel
|
|
}
|
|
|
|
define i32 @f8(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: bfi r1, r0, #4, #1
|
|
; CHECK: bfi r1, r0, #5, #1
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 48
|
|
%cmp = icmp ne i32 %and, 0
|
|
%sel = select i1 %cmp, i32 %or, i32 %y2
|
|
ret i32 %sel
|
|
}
|
|
|
|
define i32 @f9(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK-NOT: bfi
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 48
|
|
%cmp = icmp ne i32 %and, 0
|
|
%sel = select i1 %cmp, i32 %y2, i32 %or
|
|
ret i32 %sel
|
|
}
|
|
|
|
define i32 @f10(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: bfi r1, r0, #4, #2
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 32
|
|
%cmp = icmp ne i32 %and, 0
|
|
%sel = select i1 %cmp, i32 %or, i32 %y2
|
|
|
|
%aand = and i32 %x, 2
|
|
%aor = or i32 %sel, 16
|
|
%acmp = icmp ne i32 %aand, 0
|
|
%asel = select i1 %acmp, i32 %aor, i32 %sel
|
|
|
|
ret i32 %asel
|
|
}
|
|
|
|
define i32 @f11(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f11:
|
|
; CHECK: bfi r1, r0, #4, #3
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 32
|
|
%cmp = icmp ne i32 %and, 0
|
|
%sel = select i1 %cmp, i32 %or, i32 %y2
|
|
|
|
%aand = and i32 %x, 2
|
|
%aor = or i32 %sel, 16
|
|
%acmp = icmp ne i32 %aand, 0
|
|
%asel = select i1 %acmp, i32 %aor, i32 %sel
|
|
|
|
%band = and i32 %x, 8
|
|
%bor = or i32 %asel, 64
|
|
%bcmp = icmp ne i32 %band, 0
|
|
%bsel = select i1 %bcmp, i32 %bor, i32 %asel
|
|
|
|
ret i32 %bsel
|
|
}
|
|
|
|
define i32 @f12(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f12:
|
|
; CHECK: bfi r1, r0, #4, #1
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 16
|
|
%cmp = icmp eq i32 %and, 0
|
|
%sel = select i1 %cmp, i32 %y2, i32 %or
|
|
ret i32 %sel
|
|
}
|
|
|
|
define i32 @f13(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: f13:
|
|
; CHECK-NOT: bfi
|
|
%y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
|
|
%and = and i32 %x, 4
|
|
%or = or i32 %y2, 16
|
|
%cmp = icmp eq i32 %and, 42 ; Not comparing against zero!
|
|
%sel = select i1 %cmp, i32 %y2, i32 %or
|
|
ret i32 %sel
|
|
}
|