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|
; RUN: opt -S -correlated-propagation < %s | FileCheck %s
declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32)
declare void @llvm.trap()
define i32 @signed_add(i32 %x, i32 %y) {
; CHECK-LABEL: @signed_add(
; CHECK-NOT: @llvm.ssub.with.overflow.i32
; CHECK: @llvm.sadd.with.overflow.i32
entry:
%cmp = icmp sgt i32 %y, 0
br i1 %cmp, label %land.lhs.true, label %lor.lhs.false
land.lhs.true: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 2147483647, i32 %y)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %land.lhs.true, %land.lhs.true3, %cond.false
tail call void @llvm.trap()
unreachable
cont: ; preds = %land.lhs.true
%2 = extractvalue { i32, i1 } %0, 0
%cmp1 = icmp slt i32 %2, %x
br i1 %cmp1, label %cond.end, label %cond.false
lor.lhs.false: ; preds = %entry
%cmp2 = icmp slt i32 %y, 0
br i1 %cmp2, label %land.lhs.true3, label %cond.false
land.lhs.true3: ; preds = %lor.lhs.false
%3 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 -2147483648, i32 %y)
%4 = extractvalue { i32, i1 } %3, 1
br i1 %4, label %trap, label %cont4
cont4: ; preds = %land.lhs.true3
%5 = extractvalue { i32, i1 } %3, 0
%cmp5 = icmp sgt i32 %5, %x
br i1 %cmp5, label %cond.end, label %cond.false
cond.false: ; preds = %cont, %cont4, %lor.lhs.false
%6 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 %y)
%7 = extractvalue { i32, i1 } %6, 0
%8 = extractvalue { i32, i1 } %6, 1
br i1 %8, label %trap, label %cond.end
cond.end: ; preds = %cond.false, %cont, %cont4
%cond = phi i32 [ 0, %cont4 ], [ 0, %cont ], [ %7, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_add(i32 %x, i32 %y) {
; CHECK-LABEL: @unsigned_add(
; CHECK-NOT: @llvm.usub.with.overflow.i32
; CHECK: @llvm.uadd.with.overflow.i32
entry:
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 -1, i32 %y)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %cond.false, %entry
tail call void @llvm.trap()
unreachable
cont: ; preds = %entry
%2 = extractvalue { i32, i1 } %0, 0
%cmp1 = icmp ult i32 %2, %x
br i1 %cmp1, label %cond.end, label %cond.false
cond.false: ; preds = %cont
%3 = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
%4 = extractvalue { i32, i1 } %3, 0
%5 = extractvalue { i32, i1 } %3, 1
br i1 %5, label %trap, label %cond.end
cond.end: ; preds = %cond.false, %cont
%cond = phi i32 [ 0, %cont ], [ %4, %cond.false ]
ret i32 %cond
}
define i32 @signed_sub(i32 %x, i32 %y) {
; CHECK-LABEL: @signed_sub(
; CHECK-NOT: @llvm.sadd.with.overflow.i32
; CHECK: @llvm.ssub.with.overflow.i32
entry:
%cmp = icmp slt i32 %y, 0
br i1 %cmp, label %land.lhs.true, label %lor.lhs.false
land.lhs.true: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %y, i32 2147483647)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %land.lhs.true, %land.lhs.true3, %cond.false
tail call void @llvm.trap()
unreachable
cont: ; preds = %land.lhs.true
%2 = extractvalue { i32, i1 } %0, 0
%cmp1 = icmp slt i32 %2, %x
br i1 %cmp1, label %cond.end, label %cond.false
lor.lhs.false: ; preds = %entry
%cmp2 = icmp eq i32 %y, 0
br i1 %cmp2, label %cond.false, label %land.lhs.true3
land.lhs.true3: ; preds = %lor.lhs.false
%3 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %y, i32 -2147483648)
%4 = extractvalue { i32, i1 } %3, 1
br i1 %4, label %trap, label %cont4
cont4: ; preds = %land.lhs.true3
%5 = extractvalue { i32, i1 } %3, 0
%cmp5 = icmp sgt i32 %5, %x
br i1 %cmp5, label %cond.end, label %cond.false
cond.false: ; preds = %lor.lhs.false, %cont, %cont4
%6 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %x, i32 %y)
%7 = extractvalue { i32, i1 } %6, 0
%8 = extractvalue { i32, i1 } %6, 1
br i1 %8, label %trap, label %cond.end
cond.end: ; preds = %cond.false, %cont, %cont4
%cond = phi i32 [ 0, %cont4 ], [ 0, %cont ], [ %7, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_sub(i32 %x, i32 %y) {
; CHECK-LABEL: @unsigned_sub(
; CHECK: @llvm.usub.with.overflow.i32
entry:
%cmp = icmp ult i32 %x, %y
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %x, i32 %y)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_add_r1(i32 %x) {
; CHECK-LABEL: @signed_add_r1(
; CHECK-NOT: @llvm.sadd.with.overflow.i32
entry:
%cmp = icmp eq i32 %x, 2147483647
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_add_r1(i32 %x) {
; CHECK-LABEL: @unsigned_add_r1(
; CHECK-NOT: @llvm.uadd.with.overflow.i32
entry:
%cmp = icmp eq i32 %x, -1
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_sub_r1(i32 %x) {
; CHECK-LABEL: @signed_sub_r1(
; CHECK-NOT: @llvm.ssub.with.overflow.i32
entry:
%cmp = icmp eq i32 %x, -2147483648
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_sub_r1(i32 %x) {
; CHECK-LABEL: @unsigned_sub_r1(
; CHECK-NOT: @llvm.usub.with.overflow.i32
entry:
%cmp = icmp eq i32 %x, 0
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_add_rn1(i32 %x) {
; CHECK-LABEL: @signed_add_rn1(
; CHECK-NOT: @llvm.sadd.with.overflow.i32
entry:
%cmp = icmp eq i32 %x, -2147483648
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 -1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_sub_rn1(i32 %x) {
; CHECK-LABEL: @signed_sub_rn1(
; CHECK-NOT: @llvm.ssub.with.overflow.i32
entry:
%cmp = icmp eq i32 %x, 2147483647
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %x, i32 -1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
declare i32 @bar(i32)
define void @unsigned_loop(i32 %i) {
; CHECK-LABEL: @unsigned_loop(
; CHECK-NOT: @llvm.usub.with.overflow.i32
entry:
%cmp3 = icmp eq i32 %i, 0
br i1 %cmp3, label %while.end, label %while.body.preheader
while.body.preheader: ; preds = %entry
br label %while.body
while.body: ; preds = %while.body.preheader, %cont
%i.addr.04 = phi i32 [ %2, %cont ], [ %i, %while.body.preheader ]
%call = tail call i32 @bar(i32 %i.addr.04)
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %i.addr.04, i32 1)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %while.body
tail call void @llvm.trap()
unreachable
cont: ; preds = %while.body
%2 = extractvalue { i32, i1 } %0, 0
%cmp = icmp eq i32 %2, 0
br i1 %cmp, label %while.end, label %while.body
while.end: ; preds = %cont, %entry
ret void
}
define void @intrinsic_into_phi(i32 %n) {
; CHECK-LABEL: @intrinsic_into_phi(
; CHECK: @llvm.sadd.with.overflow.i32
; CHECK-NOT: @llvm.sadd.with.overflow.i32
entry:
br label %cont
for.cond: ; preds = %while.end
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %.lcssa, i32 1)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %for.cond, %while.body
tail call void @llvm.trap()
unreachable
cont: ; preds = %entry, %for.cond
%2 = phi { i32, i1 } [ zeroinitializer, %entry ], [ %0, %for.cond ]
%3 = extractvalue { i32, i1 } %2, 0
%call9 = tail call i32 @bar(i32 %3)
%tobool10 = icmp eq i32 %call9, 0
br i1 %tobool10, label %while.end, label %while.body.preheader
while.body.preheader: ; preds = %cont
br label %while.body
while.cond: ; preds = %while.body
%4 = extractvalue { i32, i1 } %6, 0
%call = tail call i32 @bar(i32 %4)
%tobool = icmp eq i32 %call, 0
br i1 %tobool, label %while.end, label %while.body
while.body: ; preds = %while.body.preheader, %while.cond
%5 = phi i32 [ %4, %while.cond ], [ %3, %while.body.preheader ]
%6 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %5, i32 1)
%7 = extractvalue { i32, i1 } %6, 1
br i1 %7, label %trap, label %while.cond
while.end: ; preds = %while.cond, %cont
%.lcssa = phi i32 [ %3, %cont ], [ %4, %while.cond ]
%cmp = icmp slt i32 %.lcssa, %n
br i1 %cmp, label %for.cond, label %cleanup2
cleanup2: ; preds = %while.end
ret void
}
|
