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| author | Reid Kleckner <reid@kleckner.net> | 2014-01-31 23:45:12 +0000 |
|---|---|---|
| committer | Reid Kleckner <reid@kleckner.net> | 2014-01-31 23:45:12 +0000 |
| commit | f10743d765c456db7c9cd2a9fe4c528d75bb5b8f (patch) | |
| tree | f369c935c1a43d3cea904b1419db8aee9c0305ca /test | |
| parent | 1cf770889fb526b7de5448c38c23182741be445f (diff) | |
| download | llvm-f10743d765c456db7c9cd2a9fe4c528d75bb5b8f.tar.gz llvm-f10743d765c456db7c9cd2a9fe4c528d75bb5b8f.tar.bz2 llvm-f10743d765c456db7c9cd2a9fe4c528d75bb5b8f.tar.xz | |
Don't put non-static allocas in the static alloca map
Allocas marked inalloca are never static, but we were trying to put them
into the static alloca map if they were in the entry block. Also add an
assertion in x86 fastisel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200593 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/dynamic-alloca-in-entry.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/dynamic-alloca-in-entry.ll b/test/CodeGen/X86/dynamic-alloca-in-entry.ll new file mode 100644 index 0000000000..2ac89baaf9 --- /dev/null +++ b/test/CodeGen/X86/dynamic-alloca-in-entry.ll @@ -0,0 +1,19 @@ +; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s + +; Allocas with unknown size in the entry block are dynamic. +define void @foo(i32 %n) { + %m = alloca i32, i32 %n + ret void +} +; CHECK-LABEL: _foo: +; CHECK: calll __chkstk +; CHECK: retl + +; Use of inalloca implies that that the alloca is not static. +define void @bar() { + %m = alloca i32, inalloca + ret void +} +; CHECK-LABEL: _bar: +; CHECK: calll __chkstk +; CHECK: retl |