mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-24 20:29:53 +00:00
[AlignmentFromAssumptions] Don't crash just because the target is 32-bit
We used to crash processing any relevant @llvm.assume on a 32-bit target (because we'd ask SE to subtract expressions of differing types). I've copied our 'simple.ll' test, but with the data layout from arm-linux-gnueabihf to get some meaningful test coverage here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217574 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel
parent
65aac0f8e3
commit
2c1a4875e8
@ -141,6 +141,10 @@ static unsigned getNewAlignment(const SCEV *AASCEV, const SCEV *AlignSCEV,
|
||||
const SCEV *PtrSCEV = SE->getSCEV(Ptr);
|
||||
const SCEV *DiffSCEV = SE->getMinusSCEV(PtrSCEV, AASCEV);
|
||||
|
||||
// On 32-bit platforms, DiffSCEV might now have type i32 -- we've always
|
||||
// sign-extended OffSCEV to i64, so make sure they agree again.
|
||||
DiffSCEV = SE->getNoopOrSignExtend(DiffSCEV, OffSCEV->getType());
|
||||
|
||||
// What we really want to know is the overall offset to the aligned
|
||||
// address. This address is displaced by the provided offset.
|
||||
DiffSCEV = SE->getMinusSCEV(DiffSCEV, OffSCEV);
|
||||
|
||||
215
test/Transforms/AlignmentFromAssumptions/simple32.ll
Normal file
215
test/Transforms/AlignmentFromAssumptions/simple32.ll
Normal file
@ -0,0 +1,215 @@
|
||||
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
|
||||
; RUN: opt < %s -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* %a, align 4
|
||||
ret i32 %0
|
||||
|
||||
; CHECK-LABEL: @foo
|
||||
; CHECK: load 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* %a, i64 2
|
||||
%0 = load i32* %arrayidx, align 4
|
||||
ret i32 %0
|
||||
|
||||
; CHECK-LABEL: @foo2
|
||||
; CHECK: load 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* %a, i64 -1
|
||||
%0 = load i32* %arrayidx, align 4
|
||||
ret i32 %0
|
||||
|
||||
; CHECK-LABEL: @foo2a
|
||||
; CHECK: load 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* %a, align 4
|
||||
ret i32 %0
|
||||
|
||||
; CHECK-LABEL: @goo
|
||||
; CHECK: load 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* %a, i64 %indvars.iv
|
||||
%0 = load 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* %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* %a, i64 %indvars.iv
|
||||
%0 = load 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* %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* %a, i64 %indvars.iv
|
||||
%0 = load 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* %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* %a, i64 %indvars.iv
|
||||
%0 = load 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* %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* %0, i8 0, i64 64, i32 4, i1 false)
|
||||
ret i32 undef
|
||||
|
||||
; CHECK-LABEL: @moo
|
||||
; CHECK: @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 64, i32 32, 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* %0, i8* %1, i64 64, i32 4, i1 false)
|
||||
ret i32 undef
|
||||
|
||||
; CHECK-LABEL: @moo2
|
||||
; CHECK: @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 64, i32 32, i1 false)
|
||||
; CHECK: ret i32 undef
|
||||
}
|
||||
|
||||
declare void @llvm.assume(i1) nounwind
|
||||
|
||||
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
|
||||
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
|
||||
|
||||
Loading…
Reference in New Issue
Block a user