mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 00:12:50 +01:00
6aff5b94ff
does normal initialization and normal chaining. Change the default AliasAnalysis implementation to NoAlias. Update StandardCompileOpts.h and friends to explicitly request BasicAliasAnalysis. Update tests to explicitly request -basicaa. llvm-svn: 116720
172 lines
3.9 KiB
LLVM
172 lines
3.9 KiB
LLVM
; RUN: opt < %s -basicaa -gvn -instcombine -S |& FileCheck %s
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
|
|
|
|
; Make sure that basicaa thinks R and r are must aliases.
|
|
define i32 @test1(i8 * %P) {
|
|
entry:
|
|
%Q = bitcast i8* %P to {i32, i32}*
|
|
%R = getelementptr {i32, i32}* %Q, i32 0, i32 1
|
|
%S = load i32* %R
|
|
|
|
%q = bitcast i8* %P to {i32, i32}*
|
|
%r = getelementptr {i32, i32}* %q, i32 0, i32 1
|
|
%s = load i32* %r
|
|
|
|
%t = sub i32 %S, %s
|
|
ret i32 %t
|
|
; CHECK: @test1
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
define i32 @test2(i8 * %P) {
|
|
entry:
|
|
%Q = bitcast i8* %P to {i32, i32, i32}*
|
|
%R = getelementptr {i32, i32, i32}* %Q, i32 0, i32 1
|
|
%S = load i32* %R
|
|
|
|
%r = getelementptr {i32, i32, i32}* %Q, i32 0, i32 2
|
|
store i32 42, i32* %r
|
|
|
|
%s = load i32* %R
|
|
|
|
%t = sub i32 %S, %s
|
|
ret i32 %t
|
|
; CHECK: @test2
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
|
|
; This was a miscompilation.
|
|
define i32 @test3({float, {i32, i32, i32}}* %P) {
|
|
entry:
|
|
%P2 = getelementptr {float, {i32, i32, i32}}* %P, i32 0, i32 1
|
|
%R = getelementptr {i32, i32, i32}* %P2, i32 0, i32 1
|
|
%S = load i32* %R
|
|
|
|
%r = getelementptr {i32, i32, i32}* %P2, i32 0, i32 2
|
|
store i32 42, i32* %r
|
|
|
|
%s = load i32* %R
|
|
|
|
%t = sub i32 %S, %s
|
|
ret i32 %t
|
|
; CHECK: @test3
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
|
|
;; This is reduced from the SmallPtrSet constructor.
|
|
%SmallPtrSetImpl = type { i8**, i32, i32, i32, [1 x i8*] }
|
|
%SmallPtrSet64 = type { %SmallPtrSetImpl, [64 x i8*] }
|
|
|
|
define i32 @test4(%SmallPtrSet64* %P) {
|
|
entry:
|
|
%tmp2 = getelementptr inbounds %SmallPtrSet64* %P, i64 0, i32 0, i32 1
|
|
store i32 64, i32* %tmp2, align 8
|
|
%tmp3 = getelementptr inbounds %SmallPtrSet64* %P, i64 0, i32 0, i32 4, i64 64
|
|
store i8* null, i8** %tmp3, align 8
|
|
%tmp4 = load i32* %tmp2, align 8
|
|
ret i32 %tmp4
|
|
; CHECK: @test4
|
|
; CHECK: ret i32 64
|
|
}
|
|
|
|
; P[i] != p[i+1]
|
|
define i32 @test5(i32* %p, i64 %i) {
|
|
%pi = getelementptr i32* %p, i64 %i
|
|
%i.next = add i64 %i, 1
|
|
%pi.next = getelementptr i32* %p, i64 %i.next
|
|
%x = load i32* %pi
|
|
store i32 42, i32* %pi.next
|
|
%y = load i32* %pi
|
|
%z = sub i32 %x, %y
|
|
ret i32 %z
|
|
; CHECK: @test5
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
; P[i] != p[(i*4)|1]
|
|
define i32 @test6(i32* %p, i64 %i1) {
|
|
%i = shl i64 %i1, 2
|
|
%pi = getelementptr i32* %p, i64 %i
|
|
%i.next = or i64 %i, 1
|
|
%pi.next = getelementptr i32* %p, i64 %i.next
|
|
%x = load i32* %pi
|
|
store i32 42, i32* %pi.next
|
|
%y = load i32* %pi
|
|
%z = sub i32 %x, %y
|
|
ret i32 %z
|
|
; CHECK: @test6
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
; P[1] != P[i*4]
|
|
define i32 @test7(i32* %p, i64 %i) {
|
|
%pi = getelementptr i32* %p, i64 1
|
|
%i.next = shl i64 %i, 2
|
|
%pi.next = getelementptr i32* %p, i64 %i.next
|
|
%x = load i32* %pi
|
|
store i32 42, i32* %pi.next
|
|
%y = load i32* %pi
|
|
%z = sub i32 %x, %y
|
|
ret i32 %z
|
|
; CHECK: @test7
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
; P[zext(i)] != p[zext(i+1)]
|
|
; PR1143
|
|
define i32 @test8(i32* %p, i16 %i) {
|
|
%i1 = zext i16 %i to i32
|
|
%pi = getelementptr i32* %p, i32 %i1
|
|
%i.next = add i16 %i, 1
|
|
%i.next2 = zext i16 %i.next to i32
|
|
%pi.next = getelementptr i32* %p, i32 %i.next2
|
|
%x = load i32* %pi
|
|
store i32 42, i32* %pi.next
|
|
%y = load i32* %pi
|
|
%z = sub i32 %x, %y
|
|
ret i32 %z
|
|
; CHECK: @test8
|
|
; CHECK: ret i32 0
|
|
}
|
|
|
|
define i8 @test9([4 x i8] *%P, i32 %i, i32 %j) {
|
|
%i2 = shl i32 %i, 2
|
|
%i3 = add i32 %i2, 1
|
|
; P2 = P + 1 + 4*i
|
|
%P2 = getelementptr [4 x i8] *%P, i32 0, i32 %i3
|
|
|
|
%j2 = shl i32 %j, 2
|
|
|
|
; P4 = P + 4*j
|
|
%P4 = getelementptr [4 x i8]* %P, i32 0, i32 %j2
|
|
|
|
%x = load i8* %P2
|
|
store i8 42, i8* %P4
|
|
%y = load i8* %P2
|
|
%z = sub i8 %x, %y
|
|
ret i8 %z
|
|
; CHECK: @test9
|
|
; CHECK: ret i8 0
|
|
}
|
|
|
|
define i8 @test10([4 x i8] *%P, i32 %i) {
|
|
%i2 = shl i32 %i, 2
|
|
%i3 = add i32 %i2, 4
|
|
; P2 = P + 4 + 4*i
|
|
%P2 = getelementptr [4 x i8] *%P, i32 0, i32 %i3
|
|
|
|
; P4 = P + 4*i
|
|
%P4 = getelementptr [4 x i8]* %P, i32 0, i32 %i2
|
|
|
|
%x = load i8* %P2
|
|
store i8 42, i8* %P4
|
|
%y = load i8* %P2
|
|
%z = sub i8 %x, %y
|
|
ret i8 %z
|
|
; CHECK: @test10
|
|
; CHECK: ret i8 0
|
|
}
|