basic.ll
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; RUN: opt -S -bdce -instsimplify < %s | FileCheck %s
; RUN: opt -S -instsimplify < %s | FileCheck %s -check-prefix=CHECK-IO
; RUN: opt -S -debugify -bdce < %s | FileCheck %s -check-prefix=DEBUGIFY
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Function Attrs: nounwind readnone
define signext i32 @bar(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 4
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 8
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%shr = ashr i32 %or15, 4
ret i32 %shr
; CHECK-LABEL: @bar
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
; Check that instsimplify is not doing this all on its own.
; CHECK-IO-LABEL: @bar
; CHECK-IO: tail call signext i32 @foo(i32 signext 5)
; CHECK-IO: tail call signext i32 @foo(i32 signext 3)
; CHECK-IO: tail call signext i32 @foo(i32 signext 2)
; CHECK-IO: tail call signext i32 @foo(i32 signext 1)
; CHECK-IO: tail call signext i32 @foo(i32 signext 0)
; CHECK-IO: tail call signext i32 @foo(i32 signext 4)
; CHECK-IO: ret i32
}
; Function Attrs: nounwind readnone
declare signext i32 @foo(i32 signext) #0
; Function Attrs: nounwind readnone
define signext i32 @far(i32 signext %x) #1 {
entry:
%call = tail call signext i32 @goo(i32 signext 5) #1
%and = and i32 %call, 4
%or = or i32 %and, %x
%call1 = tail call signext i32 @goo(i32 signext 3) #1
%and2 = and i32 %call1, 8
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @goo(i32 signext 2) #1
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @goo(i32 signext 1) #1
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @goo(i32 signext 0) #1
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @goo(i32 signext 4) #1
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%shr = ashr i32 %or15, 4
ret i32 %shr
; CHECK-LABEL: @far
; Calls to foo(5) and foo(3) are still there, but their results are not used.
; CHECK: tail call signext i32 @goo(i32 signext 5)
; CHECK-NEXT: tail call signext i32 @goo(i32 signext 3)
; CHECK-NEXT: tail call signext i32 @goo(i32 signext 2)
; CHECK: tail call signext i32 @goo(i32 signext 1)
; CHECK: tail call signext i32 @goo(i32 signext 0)
; CHECK: tail call signext i32 @goo(i32 signext 4)
; CHECK: ret i32
; Check that instsimplify is not doing this all on its own.
; CHECK-IO-LABEL: @far
; CHECK-IO: tail call signext i32 @goo(i32 signext 5)
; CHECK-IO: tail call signext i32 @goo(i32 signext 3)
; CHECK-IO: tail call signext i32 @goo(i32 signext 2)
; CHECK-IO: tail call signext i32 @goo(i32 signext 1)
; CHECK-IO: tail call signext i32 @goo(i32 signext 0)
; CHECK-IO: tail call signext i32 @goo(i32 signext 4)
; CHECK-IO: ret i32
}
declare signext i32 @goo(i32 signext) #1
; Function Attrs: nounwind readnone
define signext i32 @tar1(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%bs = tail call i32 @llvm.bswap.i32(i32 %or15) #0
%shr = ashr i32 %bs, 4
ret i32 %shr
; CHECK-LABEL: @tar1
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
declare i32 @llvm.bswap.i32(i32) #0
; Function Attrs: nounwind readnone
define signext i32 @tim(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 536870912
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 1073741824
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%bs = tail call i32 @llvm.bitreverse.i32(i32 %or15) #0
%shr = ashr i32 %bs, 4
ret i32 %shr
; CHECK-LABEL: @tim
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
declare i32 @llvm.bitreverse.i32(i32) #0
; Function Attrs: nounwind readnone
define signext i32 @tar2(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%shl = shl i32 %or15, 10
ret i32 %shl
; CHECK-LABEL: @tar2
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
define signext i32 @tar3(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%add = add i32 %or15, 5
%shl = shl i32 %add, 10
ret i32 %shl
; CHECK-LABEL: @tar3
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
define signext i32 @tar4(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%sub = sub i32 %or15, 5
%shl = shl i32 %sub, 10
ret i32 %shl
; CHECK-LABEL: @tar4
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
define signext i32 @tar5(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%xor = xor i32 %or15, 5
%shl = shl i32 %xor, 10
ret i32 %shl
; CHECK-LABEL: @tar5
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
define signext i32 @tar7(i32 signext %x, i1 %b) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%v = select i1 %b, i32 %or15, i32 5
%shl = shl i32 %v, 10
ret i32 %shl
; CHECK-LABEL: @tar7
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i32
}
; Function Attrs: nounwind readnone
define signext i16 @tar8(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
%or = or i32 %and, %x
%call1 = tail call signext i32 @foo(i32 signext 3) #0
%and2 = and i32 %call1, 67108864
%or3 = or i32 %or, %and2
%call4 = tail call signext i32 @foo(i32 signext 2) #0
%and5 = and i32 %call4, 16
%or6 = or i32 %or3, %and5
%call7 = tail call signext i32 @foo(i32 signext 1) #0
%and8 = and i32 %call7, 32
%or9 = or i32 %or6, %and8
%call10 = tail call signext i32 @foo(i32 signext 0) #0
%and11 = and i32 %call10, 64
%or12 = or i32 %or9, %and11
%call13 = tail call signext i32 @foo(i32 signext 4) #0
%and14 = and i32 %call13, 128
%or15 = or i32 %or12, %and14
%tr = trunc i32 %or15 to i16
ret i16 %tr
; CHECK-LABEL: @tar8
; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
; CHECK: tail call signext i32 @foo(i32 signext 2)
; CHECK: tail call signext i32 @foo(i32 signext 1)
; CHECK: tail call signext i32 @foo(i32 signext 0)
; CHECK: tail call signext i32 @foo(i32 signext 4)
; CHECK: ret i16
}
; DEBUGIFY-LABEL: @tar9
define signext i16 @tar9(i32 signext %x) #0 {
entry:
%call = tail call signext i32 @foo(i32 signext 5) #0
%and = and i32 %call, 33554432
; DEBUGIFY: call void @llvm.dbg.value(metadata i32 %call, metadata {{.*}}, metadata !DIExpression(DW_OP_constu, 33554432, DW_OP_and, DW_OP_stack_value))
%cast = trunc i32 %call to i16
ret i16 %cast
}
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind }