diff options
| author | bonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-10-05 12:17:16 +0000 |
|---|---|---|
| committer | bonzini <bonzini@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-10-05 12:17:16 +0000 |
| commit | 89552023e3b457cea4844ab574b86bd3039497fa (patch) | |
| tree | 56889bd0e587b4c391a24d46c92ac8f2af4f0978 /gcc/testsuite/gcc.dg/asm-pr24146.c | |
| parent | 7098b9ea217715357c201c4a9f24d557ce1f797f (diff) | |
| download | gcc-89552023e3b457cea4844ab574b86bd3039497fa.tar.gz | |
2005-10-05 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/21419
PR tree-optimization/24146
PR tree-optimization/24151
* c-typeck.c (readonly_error): Handle USE being lv_asm.
(build_asm_expr): Call it if outputs are read-only.
* gimplify.c (gimplify_asm_expr): Remove former fix to PR 21419.
cp:
2005-10-05 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/21419
PR tree-optimization/24146
PR tree-optimization/24151
* semantics.c (finish_asm_stmt): Call readonly_error if outputs are
read-only. Set ASM_VOLATILE_P for asms without outputs.
testsuite:
2005-10-05 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/21419
PR tree-optimization/24146
PR tree-optimization/24151
* g++.dg/ext/asm7.C: New.
* g++.dg/ext/asm8.C: New.
* gcc.dg/asm-1.c: Compile on all targets.
* gcc.dg/asm-pr24146.c: New.
* gcc.dg/pr21419.c: Adjust error messages.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104988 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/asm-pr24146.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/asm-pr24146.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/asm-pr24146.c b/gcc/testsuite/gcc.dg/asm-pr24146.c new file mode 100644 index 00000000000..0b1be7da7de --- /dev/null +++ b/gcc/testsuite/gcc.dg/asm-pr24146.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ + +/* Test that asm with no outputs are treated as volatile. */ + +void f(int x) +{ + __asm__ ("extended asm not discarded" : : "r" (x)); +} + +void g (void) +{ + __asm__ ("simple asm not discarded"); +} +/* { dg-final { scan-assembler "extended asm not discarded" } } */ +/* { dg-final { scan-assembler "simple asm not discarded" } } */ + |