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| target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
; RUN: opt < %s -alignment-from-assumptions -S | FileCheck %s
; RUN: opt < %s -passes=alignment-from-assumptions -S | FileCheck %s
define i32 @foo(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%0 = load i32, i32* %a, align 4
ret i32 %0
; CHECK-LABEL: @foo
; CHECK: load i32, i32* {{[^,]+}}, align 32
; CHECK: ret i32
}
define i32 @foo2(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%offsetptr = add i64 %ptrint, 24
%maskedptr = and i64 %offsetptr, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%arrayidx = getelementptr inbounds i32, i32* %a, i64 2
%0 = load i32, i32* %arrayidx, align 4
ret i32 %0
; CHECK-LABEL: @foo2
; CHECK: load i32, i32* {{[^,]+}}, align 16
; CHECK: ret i32
}
define i32 @foo2a(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%offsetptr = add i64 %ptrint, 28
%maskedptr = and i64 %offsetptr, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%arrayidx = getelementptr inbounds i32, i32* %a, i64 -1
%0 = load i32, i32* %arrayidx, align 4
ret i32 %0
; CHECK-LABEL: @foo2a
; CHECK: load i32, i32* {{[^,]+}}, align 32
; CHECK: ret i32
}
define i32 @goo(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%0 = load i32, i32* %a, align 4
ret i32 %0
; CHECK-LABEL: @goo
; CHECK: load i32, i32* {{[^,]+}}, align 32
; CHECK: ret i32
}
define i32 @hoo(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%r.06 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, %r.06
%indvars.iv.next = add i64 %indvars.iv, 8
%1 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %1, 2048
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body
%add.lcssa = phi i32 [ %add, %for.body ]
ret i32 %add.lcssa
; CHECK-LABEL: @hoo
; CHECK: load i32, i32* %arrayidx, align 32
; CHECK: ret i32 %add.lcssa
}
; test D66575
; def hoo2(a, id, num):
; for i0 in range(id*64, 4096, num*64):
; for i1 in range(0, 4096, 32):
; for i2 in range(0, 4096, 32):
; load(a, i0+i1+i2+32)
define void @hoo2(i32* nocapture %a, i64 %id, i64 %num) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%id.mul = shl nsw i64 %id, 6
%num.mul = shl nsw i64 %num, 6
br label %for0.body
for0.body:
%i0 = phi i64 [ %id.mul, %entry ], [ %i0.next, %for0.end ]
br label %for1.body
for1.body:
%i1 = phi i64 [ 0, %for0.body ], [ %i1.next, %for1.end ]
br label %for2.body
for2.body:
%i2 = phi i64 [ 0, %for1.body ], [ %i2.next, %for2.body ]
%t1 = add nuw nsw i64 %i0, %i1
%t2 = add nuw nsw i64 %t1, %i2
%t3 = add nuw nsw i64 %t2, 32
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %t3
%x = load i32, i32* %arrayidx, align 4
%i2.next = add nuw nsw i64 %i2, 32
%cmp2 = icmp ult i64 %i2.next, 4096
br i1 %cmp2, label %for2.body, label %for1.end
for1.end:
%i1.next = add nuw nsw i64 %i1, 32
%cmp1 = icmp ult i64 %i1.next, 4096
br i1 %cmp1, label %for1.body, label %for0.end
for0.end:
%i0.next = add nuw nsw i64 %i0, %num.mul
%cmp0 = icmp ult i64 %i0.next, 4096
br i1 %cmp0, label %for0.body, label %return
return:
ret void
; CHECK-LABEL: @hoo2
; CHECK: load i32, i32* %arrayidx, align 32
; CHECK: ret void
}
define i32 @joo(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 4, %entry ], [ %indvars.iv.next, %for.body ]
%r.06 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, %r.06
%indvars.iv.next = add i64 %indvars.iv, 8
%1 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %1, 2048
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body
%add.lcssa = phi i32 [ %add, %for.body ]
ret i32 %add.lcssa
; CHECK-LABEL: @joo
; CHECK: load i32, i32* %arrayidx, align 16
; CHECK: ret i32 %add.lcssa
}
define i32 @koo(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%r.06 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, %r.06
%indvars.iv.next = add i64 %indvars.iv, 4
%1 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %1, 2048
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body
%add.lcssa = phi i32 [ %add, %for.body ]
ret i32 %add.lcssa
; CHECK-LABEL: @koo
; CHECK: load i32, i32* %arrayidx, align 16
; CHECK: ret i32 %add.lcssa
}
define i32 @koo2(i32* nocapture %a) nounwind uwtable readonly {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ -4, %entry ], [ %indvars.iv.next, %for.body ]
%r.06 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %0, %r.06
%indvars.iv.next = add i64 %indvars.iv, 4
%1 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %1, 2048
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body
%add.lcssa = phi i32 [ %add, %for.body ]
ret i32 %add.lcssa
; CHECK-LABEL: @koo2
; CHECK: load i32, i32* %arrayidx, align 16
; CHECK: ret i32 %add.lcssa
}
define i32 @moo(i32* nocapture %a) nounwind uwtable {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%0 = bitcast i32* %a to i8*
tail call void @llvm.memset.p0i8.i64(i8* align 4 %0, i8 0, i64 64, i1 false)
ret i32 undef
; CHECK-LABEL: @moo
; CHECK: @llvm.memset.p0i8.i64(i8* align 32 %0, i8 0, i64 64, i1 false)
; CHECK: ret i32 undef
}
define i32 @moo2(i32* nocapture %a, i32* nocapture %b) nounwind uwtable {
entry:
%ptrint = ptrtoint i32* %a to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
tail call void @llvm.assume(i1 %maskcond)
%ptrint1 = ptrtoint i32* %b to i64
%maskedptr3 = and i64 %ptrint1, 127
%maskcond4 = icmp eq i64 %maskedptr3, 0
tail call void @llvm.assume(i1 %maskcond4)
%0 = bitcast i32* %a to i8*
%1 = bitcast i32* %b to i8*
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %0, i8* align 4 %1, i64 64, i1 false)
ret i32 undef
; CHECK-LABEL: @moo2
; CHECK: @llvm.memcpy.p0i8.p0i8.i64(i8* align 32 %0, i8* align 128 %1, i64 64, i1 false)
; CHECK: ret i32 undef
}
declare void @llvm.assume(i1) nounwind
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
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