forked from OSchip/llvm-project
232 lines
7.1 KiB
LLVM
232 lines
7.1 KiB
LLVM
; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
|
|
target datalayout = "e-p:64:64:64-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"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; CHECK-LABEL: test_with_zext
|
|
; CHECK: NoAlias: i8* %a, i8* %b
|
|
|
|
define void @test_with_zext() {
|
|
%1 = tail call i8* @malloc(i64 120)
|
|
%a = getelementptr inbounds i8, i8* %1, i64 8
|
|
%2 = getelementptr inbounds i8, i8* %1, i64 16
|
|
%3 = zext i32 3 to i64
|
|
%b = getelementptr inbounds i8, i8* %2, i64 %3
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_with_lshr
|
|
; CHECK: NoAlias: i8* %a, i8* %b
|
|
|
|
define void @test_with_lshr(i64 %i) {
|
|
%1 = tail call i8* @malloc(i64 120)
|
|
%a = getelementptr inbounds i8, i8* %1, i64 8
|
|
%2 = getelementptr inbounds i8, i8* %1, i64 16
|
|
%3 = lshr i64 %i, 2
|
|
%b = getelementptr inbounds i8, i8* %2, i64 %3
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_with_a_loop
|
|
; CHECK: NoAlias: i8* %a, i8* %b
|
|
|
|
define void @test_with_a_loop(i8* %mem) {
|
|
br label %for.loop
|
|
|
|
for.loop:
|
|
%i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ]
|
|
%a = getelementptr inbounds i8, i8* %mem, i64 8
|
|
%a.plus1 = getelementptr inbounds i8, i8* %mem, i64 16
|
|
%i.64 = zext i32 %i to i64
|
|
%b = getelementptr inbounds i8, i8* %a.plus1, i64 %i.64
|
|
%i.plus1 = add nuw nsw i32 %i, 1
|
|
%cmp = icmp eq i32 %i.plus1, 10
|
|
br i1 %cmp, label %for.loop.exit, label %for.loop
|
|
|
|
for.loop.exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_with_varying_base_pointer_in_loop
|
|
; CHECK: NoAlias: i8* %a, i8* %b
|
|
|
|
define void @test_with_varying_base_pointer_in_loop(i8* %mem.orig) {
|
|
br label %for.loop
|
|
|
|
for.loop:
|
|
%mem = phi i8* [ %mem.orig, %0 ], [ %mem.plus1, %for.loop ]
|
|
%i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ]
|
|
%a = getelementptr inbounds i8, i8* %mem, i64 8
|
|
%a.plus1 = getelementptr inbounds i8, i8* %mem, i64 16
|
|
%i.64 = zext i32 %i to i64
|
|
%b = getelementptr inbounds i8, i8* %a.plus1, i64 %i.64
|
|
%i.plus1 = add nuw nsw i32 %i, 1
|
|
%mem.plus1 = getelementptr inbounds i8, i8* %mem, i64 8
|
|
%cmp = icmp eq i32 %i.plus1, 10
|
|
br i1 %cmp, label %for.loop.exit, label %for.loop
|
|
|
|
for.loop.exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_sign_extension
|
|
; CHECK: MayAlias: i64* %b.i64, i8* %a
|
|
|
|
define void @test_sign_extension(i32 %p) {
|
|
%1 = tail call i8* @malloc(i64 120)
|
|
%p.64 = zext i32 %p to i64
|
|
%a = getelementptr inbounds i8, i8* %1, i64 %p.64
|
|
%p.minus1 = add i32 %p, -1
|
|
%p.minus1.64 = zext i32 %p.minus1 to i64
|
|
%b.i8 = getelementptr inbounds i8, i8* %1, i64 %p.minus1.64
|
|
%b.i64 = bitcast i8* %b.i8 to i64*
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_fe_tools
|
|
; CHECK: MayAlias: i32* %a, i32* %b
|
|
|
|
define void @test_fe_tools([8 x i32]* %values) {
|
|
br label %reorder
|
|
|
|
for.loop:
|
|
%i = phi i32 [ 0, %reorder ], [ %i.next, %for.loop ]
|
|
%idxprom = zext i32 %i to i64
|
|
%b = getelementptr inbounds [8 x i32], [8 x i32]* %values, i64 0, i64 %idxprom
|
|
%i.next = add nuw nsw i32 %i, 1
|
|
%1 = icmp eq i32 %i.next, 10
|
|
br i1 %1, label %for.loop.exit, label %for.loop
|
|
|
|
reorder:
|
|
%a = getelementptr inbounds [8 x i32], [8 x i32]* %values, i64 0, i64 1
|
|
br label %for.loop
|
|
|
|
for.loop.exit:
|
|
ret void
|
|
}
|
|
|
|
@b = global i32 0, align 4
|
|
@d = global i32 0, align 4
|
|
|
|
; CHECK-LABEL: test_spec2006
|
|
; CHECK: MayAlias: i32** %x, i32** %y
|
|
|
|
define void @test_spec2006() {
|
|
%h = alloca [1 x [2 x i32*]], align 16
|
|
%d.val = load i32, i32* @d, align 4
|
|
%d.promoted = sext i32 %d.val to i64
|
|
%1 = icmp slt i32 %d.val, 2
|
|
br i1 %1, label %.lr.ph, label %3
|
|
|
|
.lr.ph: ; preds = %0
|
|
br label %2
|
|
|
|
; <label>:2 ; preds = %.lr.ph, %2
|
|
%i = phi i32 [ %d.val, %.lr.ph ], [ %i.plus1, %2 ]
|
|
%i.promoted = sext i32 %i to i64
|
|
%x = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 %d.promoted, i64 %i.promoted
|
|
%i.plus1 = add nsw i32 %i, 1
|
|
%cmp = icmp slt i32 %i.plus1, 2
|
|
br i1 %cmp, label %2, label %3
|
|
|
|
; <label>:3 ; preds = %._crit_edge, %0
|
|
%y = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 0, i64 1
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_modulo_analysis_easy_case
|
|
; CHECK: NoAlias: i32** %x, i32** %y
|
|
|
|
define void @test_modulo_analysis_easy_case(i64 %i) {
|
|
%h = alloca [1 x [2 x i32*]], align 16
|
|
%x = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 %i, i64 0
|
|
%y = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 0, i64 1
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_modulo_analysis_in_loop
|
|
; CHECK: NoAlias: i32** %x, i32** %y
|
|
|
|
define void @test_modulo_analysis_in_loop() {
|
|
%h = alloca [1 x [2 x i32*]], align 16
|
|
br label %for.loop
|
|
|
|
for.loop:
|
|
%i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ]
|
|
%i.promoted = sext i32 %i to i64
|
|
%x = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 %i.promoted, i64 0
|
|
%y = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 0, i64 1
|
|
%i.plus1 = add nsw i32 %i, 1
|
|
%cmp = icmp slt i32 %i.plus1, 2
|
|
br i1 %cmp, label %for.loop, label %for.loop.exit
|
|
|
|
for.loop.exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_modulo_analysis_with_global
|
|
; CHECK: MayAlias: i32** %x, i32** %y
|
|
|
|
define void @test_modulo_analysis_with_global() {
|
|
%h = alloca [1 x [2 x i32*]], align 16
|
|
%b = load i32, i32* @b, align 4
|
|
%b.promoted = sext i32 %b to i64
|
|
br label %for.loop
|
|
|
|
for.loop:
|
|
%i = phi i32 [ 0, %0 ], [ %i.plus1, %for.loop ]
|
|
%i.promoted = sext i32 %i to i64
|
|
%x = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 %i.promoted, i64 %b.promoted
|
|
%y = getelementptr inbounds [1 x [2 x i32*]], [1 x [2 x i32*]]* %h, i64 0, i64 0, i64 1
|
|
%i.plus1 = add nsw i32 %i, 1
|
|
%cmp = icmp slt i32 %i.plus1, 2
|
|
br i1 %cmp, label %for.loop, label %for.loop.exit
|
|
|
|
for.loop.exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_const_eval
|
|
; CHECK: NoAlias: i8* %a, i8* %b
|
|
define void @test_const_eval(i8* %ptr, i64 %offset) {
|
|
%a = getelementptr inbounds i8, i8* %ptr, i64 %offset
|
|
%a.dup = getelementptr inbounds i8, i8* %ptr, i64 %offset
|
|
%three = zext i32 3 to i64
|
|
%b = getelementptr inbounds i8, i8* %a.dup, i64 %three
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: test_const_eval_scaled
|
|
; CHECK: MustAlias: i8* %a, i8* %b
|
|
define void @test_const_eval_scaled(i8* %ptr) {
|
|
%three = zext i32 3 to i64
|
|
%six = mul i64 %three, 2
|
|
%a = getelementptr inbounds i8, i8* %ptr, i64 %six
|
|
%b = getelementptr inbounds i8, i8* %ptr, i64 6
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: Function: foo
|
|
; CHECK: MustAlias: float* %arrayidx, float* %arrayidx4.84
|
|
define float @foo(i32 *%A, float %rend, float** %wayar) {
|
|
entry:
|
|
%x0 = load i32, i32* %A, align 4
|
|
%conv = sext i32 %x0 to i64
|
|
%mul = shl nsw i64 %conv, 3
|
|
%call = tail call i8* @malloc(i64 %mul)
|
|
%x1 = bitcast i8* %call to float*
|
|
|
|
%sub = add nsw i32 %x0, -1
|
|
%idxprom = sext i32 %sub to i64
|
|
%arrayidx = getelementptr inbounds float, float* %x1, i64 %idxprom
|
|
store float %rend, float* %arrayidx, align 8
|
|
|
|
%indvars.iv76.83 = add nsw i64 %conv, -1
|
|
%arrayidx4.84 = getelementptr inbounds float, float* %x1, i64 %indvars.iv76.83
|
|
%x4 = load float, float* %arrayidx4.84, align 8
|
|
|
|
ret float %x4
|
|
}
|
|
|
|
; Function Attrs: nounwind
|
|
declare noalias i8* @malloc(i64)
|