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| author | Chris Lattner <sabre@nondot.org> | 2010-12-07 01:59:32 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-12-07 01:59:32 +0000 |
| commit | fb431099c5783f5e25a0a4c789274256cde3e925 (patch) | |
| tree | 1c9b5380d86bc3eb99eef461a7c8c913611f416e /test/Transforms/GlobalOpt | |
| parent | 1fe045279b10550f06fd755c1aa6377e67ff0473 (diff) | |
| download | external_llvm-fb431099c5783f5e25a0a4c789274256cde3e925.zip external_llvm-fb431099c5783f5e25a0a4c789274256cde3e925.tar.gz external_llvm-fb431099c5783f5e25a0a4c789274256cde3e925.tar.bz2 | |
fix PR8710 - teach global opt that some constantexprs are too complex to
put in a global variable's initializer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121100 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/GlobalOpt')
| -rw-r--r-- | test/Transforms/GlobalOpt/ctor-list-opt-constexpr.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/ctor-list-opt-constexpr.ll b/test/Transforms/GlobalOpt/ctor-list-opt-constexpr.ll new file mode 100644 index 0000000..204f979 --- /dev/null +++ b/test/Transforms/GlobalOpt/ctor-list-opt-constexpr.ll @@ -0,0 +1,23 @@ +; RUN: opt -globalopt %s -S | 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" +target triple = "x86_64-apple-darwin10.0.0" + +%0 = type { i32, void ()* } +%struct.foo = type { i32* } + +@G = global i32 0, align 4 +@H = global i32 0, align 4 +@X = global %struct.foo zeroinitializer, align 8 +@llvm.global_ctors = appending global [1 x %0] [%0 { i32 65535, void ()* @init }] + +; PR8710 - GlobalOpt shouldn't change the global's initializer to have this +; arbitrary constant expression, the code generator can't handle it. +define internal void @init() { +entry: + %tmp = getelementptr inbounds %struct.foo* @X, i32 0, i32 0 + store i32* inttoptr (i64 sdiv (i64 ptrtoint (i32* @G to i64), i64 ptrtoint (i32* @H to i64)) to i32*), i32** %tmp, align 8 + ret void +} + +; CHECK: @init +; CHECK: store i32* |