diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2012-11-10 02:09:05 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-11-10 02:09:05 +0000 |
| commit | b341fac05a890272024dcc5c7e47d10b22d62b92 (patch) | |
| tree | d5c87bfab8a43761673a9b96e2735c86bfde68c7 /test | |
| parent | 9c7ae01f390b3d7c0fab562e69aba253d28a6dfb (diff) | |
| download | llvm-b341fac05a890272024dcc5c7e47d10b22d62b92.tar.gz llvm-b341fac05a890272024dcc5c7e47d10b22d62b92.tar.bz2 llvm-b341fac05a890272024dcc5c7e47d10b22d62b92.tar.xz | |
Disable the Thumb no-return call optimization:
mov lr, pc
b.w _foo
The "mov" instruction doesn't set bit zero to one, it's putting incorrect
value in lr. It messes up backtraces.
rdar://12663632
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167657 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/call-noret-minsize.ll | 7 | ||||
| -rw-r--r-- | test/CodeGen/ARM/call-noret.ll | 8 |
2 files changed, 0 insertions, 15 deletions
diff --git a/test/CodeGen/ARM/call-noret-minsize.ll b/test/CodeGen/ARM/call-noret-minsize.ll index 35490ac69b..df3c19eca6 100644 --- a/test/CodeGen/ARM/call-noret-minsize.ll +++ b/test/CodeGen/ARM/call-noret-minsize.ll @@ -1,6 +1,5 @@ ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=cortex-a8 | FileCheck %s -check-prefix=ARM ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=swift | FileCheck %s -check-prefix=SWIFT -; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 | FileCheck %s -check-prefix=T2 ; rdar://12348580 define void @t1() noreturn minsize nounwind ssp { @@ -10,9 +9,6 @@ entry: ; SWIFT: t1: ; SWIFT: bl _bar - -; T2: t1: -; T2: blx _bar tail call void @bar() noreturn nounwind unreachable } @@ -24,9 +20,6 @@ entry: ; SWIFT: t2: ; SWIFT: bl _t1 - -; T2: t2: -; T2: bl _t1 tail call void @t1() noreturn nounwind unreachable } diff --git a/test/CodeGen/ARM/call-noret.ll b/test/CodeGen/ARM/call-noret.ll index d294f2cf1a..27062dca38 100644 --- a/test/CodeGen/ARM/call-noret.ll +++ b/test/CodeGen/ARM/call-noret.ll @@ -1,6 +1,5 @@ ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=cortex-a8 | FileCheck %s -check-prefix=ARM ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=swift | FileCheck %s -check-prefix=SWIFT -; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 | FileCheck %s -check-prefix=T2 ; rdar://8979299 define void @t1() noreturn nounwind ssp { @@ -12,9 +11,6 @@ entry: ; SWIFT: t1: ; SWIFT: mov lr, pc ; SWIFT: b _bar - -; T2: t1: -; T2: blx _bar tail call void @bar() noreturn nounwind unreachable } @@ -28,10 +24,6 @@ entry: ; SWIFT: t2: ; SWIFT: mov lr, pc ; SWIFT: b _t1 - -; T2: t2: -; T2: mov lr, pc -; T2: b.w _t1 tail call void @t1() noreturn nounwind unreachable } |