forked from OSchip/llvm-project
217 lines
7.0 KiB
LLVM
217 lines
7.0 KiB
LLVM
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
|
|
}
|
|
|
|
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 32 %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
|
|
|