mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
6fd1b8ee48
Alias with unnamed_addr were in a strange state. It is stored in GlobalValue, the language reference talks about "unnamed_addr aliases" but the verifier was rejecting them. It seems natural to allow unnamed_addr in aliases: * It is a property of how it is accessed, not of the data itself. * It is perfectly possible to write code that depends on the address of an alias. This patch then makes unname_addr legal for aliases. One side effect is that the syntax changes for a corner case: In globals, unnamed_addr is now printed before the address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210302 91177308-0d34-0410-b5e6-96231b3b80d8
106 lines
3.1 KiB
LLVM
106 lines
3.1 KiB
LLVM
; RUN: opt < %s -bounds-checking -S | FileCheck %s
|
|
target datalayout = "e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
|
|
@global = private unnamed_addr constant [10 x i8] c"ola\00mundo\00", align 1
|
|
|
|
; CHECK: f1
|
|
; no checks are possible here
|
|
; CHECK-NOT: trap
|
|
define void @f1(i8* nocapture %c) {
|
|
entry:
|
|
%0 = load i8* %c, align 1
|
|
%tobool1 = icmp eq i8 %0, 0
|
|
br i1 %tobool1, label %while.end, label %while.body
|
|
|
|
while.body:
|
|
%c.addr.02 = phi i8* [ %incdec.ptr, %while.body ], [ %c, %entry ]
|
|
%incdec.ptr = getelementptr inbounds i8* %c.addr.02, i64 -1
|
|
store i8 100, i8* %c.addr.02, align 1
|
|
%1 = load i8* %incdec.ptr, align 1
|
|
%tobool = icmp eq i8 %1, 0
|
|
br i1 %tobool, label %while.end, label %while.body
|
|
|
|
while.end:
|
|
ret void
|
|
}
|
|
|
|
|
|
; CHECK: f2
|
|
define void @f2() {
|
|
while.body.i.preheader:
|
|
%addr = getelementptr inbounds [10 x i8]* @global, i64 0, i64 9
|
|
br label %while.body.i
|
|
|
|
while.body.i:
|
|
; CHECK: phi
|
|
; CHECK-NEXT: phi
|
|
; CHECK-NOT: phi
|
|
%c.addr.02.i = phi i8* [ %incdec.ptr.i, %while.body.i ], [ %addr, %while.body.i.preheader ]
|
|
%incdec.ptr.i = getelementptr inbounds i8* %c.addr.02.i, i64 -1
|
|
; CHECK: sub i64 10, %0
|
|
; CHECK-NEXT: icmp ult i64 10, %0
|
|
; CHECK-NEXT: icmp ult i64 {{.*}}, 1
|
|
; CHECK-NEXT: or i1
|
|
; CHECK-NEXT: br {{.*}}, label %trap
|
|
store i8 100, i8* %c.addr.02.i, align 1
|
|
%0 = load i8* %incdec.ptr.i, align 1
|
|
%tobool.i = icmp eq i8 %0, 0
|
|
br i1 %tobool.i, label %fn.exit, label %while.body.i
|
|
|
|
fn.exit:
|
|
ret void
|
|
}
|
|
|
|
|
|
@global_as1 = private unnamed_addr addrspace(1) constant [10 x i8] c"ola\00mundo\00", align 1
|
|
|
|
define void @f1_as1(i8 addrspace(1)* nocapture %c) {
|
|
; CHECK: @f1_as1
|
|
; no checks are possible here
|
|
; CHECK-NOT: trap
|
|
; CHECK: add i16 undef, -1
|
|
; CHECK-NOT: trap
|
|
entry:
|
|
%0 = load i8 addrspace(1)* %c, align 1
|
|
%tobool1 = icmp eq i8 %0, 0
|
|
br i1 %tobool1, label %while.end, label %while.body
|
|
|
|
while.body:
|
|
%c.addr.02 = phi i8 addrspace(1)* [ %incdec.ptr, %while.body ], [ %c, %entry ]
|
|
%incdec.ptr = getelementptr inbounds i8 addrspace(1)* %c.addr.02, i64 -1
|
|
store i8 100, i8 addrspace(1)* %c.addr.02, align 1
|
|
%1 = load i8 addrspace(1)* %incdec.ptr, align 1
|
|
%tobool = icmp eq i8 %1, 0
|
|
br i1 %tobool, label %while.end, label %while.body
|
|
|
|
while.end:
|
|
ret void
|
|
}
|
|
|
|
|
|
define void @f2_as1() {
|
|
; CHECK: @f2_as1
|
|
while.body.i.preheader:
|
|
%addr = getelementptr inbounds [10 x i8] addrspace(1)* @global_as1, i16 0, i16 9
|
|
br label %while.body.i
|
|
|
|
while.body.i:
|
|
; CHECK: phi
|
|
; CHECK-NEXT: phi
|
|
; CHECK-NOT: phi
|
|
%c.addr.02.i = phi i8 addrspace(1)* [ %incdec.ptr.i, %while.body.i ], [ %addr, %while.body.i.preheader ]
|
|
%incdec.ptr.i = getelementptr inbounds i8 addrspace(1)* %c.addr.02.i, i16 -1
|
|
; CHECK: sub i16 10, %0
|
|
; CHECK-NEXT: icmp ult i16 10, %0
|
|
; CHECK-NEXT: icmp ult i16 {{.*}}, 1
|
|
; CHECK-NEXT: or i1
|
|
; CHECK-NEXT: br {{.*}}, label %trap
|
|
store i8 100, i8 addrspace(1)* %c.addr.02.i, align 1
|
|
%0 = load i8 addrspace(1)* %incdec.ptr.i, align 1
|
|
%tobool.i = icmp eq i8 %0, 0
|
|
br i1 %tobool.i, label %fn.exit, label %while.body.i
|
|
|
|
fn.exit:
|
|
ret void
|
|
}
|