llvm-6502/test/Transforms/ScalarRepl/badarray.ll
Chris Lattner b85e4eba85 rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is
for pre-2.9 bitcode files.  We keep x86 unaligned loads, movnt, crc32, and the
target indep prefetch change.

As usual, updating the testsuite is a PITA.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133337 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18 06:05:24 +00:00

58 lines
1.7 KiB
LLVM

; RUN: opt < %s -scalarrepl -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-f80:32:32-n8:16:32"
target triple = "i386-pc-linux-gnu"
; PR3466
; Off end of array, don't transform.
define i32 @test1() {
; CHECK: @test1
; CHECK-NOT: = alloca
%X = alloca [4 x i32]
%Y = getelementptr [4 x i32]* %X, i64 0, i64 6 ; <i32*> [#uses=2]
store i32 0, i32* %Y
%Z = load i32* %Y ; <i32> [#uses=1]
ret i32 %Z
}
; Off end of array, don't transform.
define i32 @test2() nounwind {
entry:
; CHECK: @test2
; CHECK-NOT: = alloca
%yx2.i = alloca float, align 4 ; <float*> [#uses=1]
%yx26.i = bitcast float* %yx2.i to i64* ; <i64*> [#uses=1]
%0 = load i64* %yx26.i, align 8 ; <i64> [#uses=0]
unreachable
}
%base = type { i32, [0 x i8] }
%padded = type { %base, [1 x i32] }
; PR5436
define void @test3() {
entry:
; CHECK: @test3
; CHECK-NOT: = alloca
; CHECK: store i64
%var_1 = alloca %padded, align 8 ; <%padded*> [#uses=3]
%0 = getelementptr inbounds %padded* %var_1, i32 0, i32 0 ; <%base*> [#uses=2]
%p2 = getelementptr inbounds %base* %0, i32 0, i32 1, i32 0 ; <i8*> [#uses=1]
store i8 72, i8* %p2, align 1
; 72 -> a[0].
%callret = call %padded *@test3f() ; <i32> [#uses=2]
%callretcast = bitcast %padded* %callret to i8* ; <i8*> [#uses=1]
%var_11 = bitcast %padded* %var_1 to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %callretcast, i8* %var_11, i32 8, i32 4, i1 false)
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
declare %padded* @test3f()