diff options
Diffstat (limited to 'test/Transforms/ScalarRepl/badarray.ll')
-rw-r--r-- | test/Transforms/ScalarRepl/badarray.ll | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/test/Transforms/ScalarRepl/badarray.ll b/test/Transforms/ScalarRepl/badarray.ll index 909966f19038..3ec3c01b2836 100644 --- a/test/Transforms/ScalarRepl/badarray.ll +++ b/test/Transforms/ScalarRepl/badarray.ll @@ -1,9 +1,15 @@ -; RUN: opt < %s -scalarrepl -instcombine -S | not grep alloca -; PR3466 +; 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" + -define i32 @test() { - %X = alloca [4 x i32] ; <[4 x i32]*> [#uses=1] - ; Off end of array! +; 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] @@ -11,10 +17,41 @@ define i32 @test() { } +; 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.i32(i8* %callretcast, i8* %var_11, i32 8, i32 4) + ret void +} + +declare void @llvm.memcpy.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind + +declare %padded* @test3f() |