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| author | Reid Kleckner <rnk@google.com> | 2016-02-01 18:58:24 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2016-02-01 18:58:24 +0000 |
| commit | f27e752fe888f8a8fd38d7e65854f57040a13160 (patch) | |
| tree | 46991c185e2f6dd0087d3f0640fefdcef43a08fc /clang/lib/Basic/Targets.cpp | |
| parent | c8620dfd270c504a8e0b5159c937e875179217f9 (diff) | |
| download | bcm5719-llvm-f27e752fe888f8a8fd38d7e65854f57040a13160.tar.gz bcm5719-llvm-f27e752fe888f8a8fd38d7e65854f57040a13160.zip | |
Fix attribute((mode([word|unwind_word]))) for x32
Patch by H.J. Lu
```
typedef unsigned int gcc_word __attribute__((mode(word)));
```
and
```
typedef unsigned int gcc_unwind_word __attribute__((mode(unwind_word)));
```
define the largest unsigned integer types which can be stored in a
general purpose register, which may not be the pointer type. For x32,
they aren't pointer nor unsigned long. We should
1. Make getUnwindWordWidth and getRegisterWidth virtual,
2. Override them for x32, similar to hasInt128Type.
3. Use getRegisterWidth for __attribute__((mode(word)));
This fixes PR 24706.
Reviewers: rnk
Differential Revision: http://reviews.llvm.org/D16779
llvm-svn: 259383
Diffstat (limited to 'clang/lib/Basic/Targets.cpp')
| -rw-r--r-- | clang/lib/Basic/Targets.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp index d75aa3e0095..3f4c1aa12c9 100644 --- a/clang/lib/Basic/Targets.cpp +++ b/clang/lib/Basic/Targets.cpp @@ -4029,6 +4029,8 @@ public: // for x32 we need it here explicitly bool hasInt128Type() const override { return true; } + unsigned getUnwindWordWidth() const override { return 64; } + unsigned getRegisterWidth() const override { return 64; } bool validateGlobalRegisterVariable(StringRef RegName, unsigned RegSize, |
