e766449f22
Consider test-case gcc.c-torture/compile/pr71109.c.
It contains a prototype-less declaration of foo:
...
static void foo ();
...
followed by a call to foo
...
foo (bar, a);
...
followed by the definition of foo:
...
static inline void
foo (int x, struct S y, struct T z)
...
The test-case has undefined behaviour, but for the nvptx target it doesn't even
assemble:
...
$ gcc src/gcc/testsuite/gcc.c-torture/compile/pr71109.c -c
ptxas pr71109.o, line 196; error : Type of argument does not match \
formal parameter '%in_ar0'
ptxas pr71109.o, line 196; error : Alignment of argument does not match \
formal parameter '%in_ar0'
ptxas pr71109.o, line 196; error : Call has wrong number of parameters
ptxas fatal : Ptx assembly aborted due to errors
nvptx-as: ptxas returned 255 exit status
...
The problem is that this call:
...
191 {
192 .param .u64 %out_arg1;
193 st.param.u64 [%out_arg1],%r23;
194 .param .u64 %out_arg2;
195 st.param.u64 [%out_arg2],%r32;
196 call foo,(%out_arg1,%out_arg2);
197 }
...
does not match the preceding declaration:
...
6 // BEGIN FUNCTION DECL: foo
7 .func foo (.param .u32 %in_ar0, .param .u64 %in_ar1, .param .u64 %in_ar2);
...
which is a PTX error.
Introduce an effective target non_strict_prototype that returns 0 for nvptx,
and use it in this and similar test-cases.
Tested on nvptx.
gcc/testsuite/ChangeLog:
* lib/target-supports.exp (check_effective_target_non_strict_prototype):
New proc.
* gcc.c-torture/compile/pr71109.c: Require effective target
non_strict_prototype.
* gcc.c-torture/compile/pr83051-2.c: Same.
* gcc.c-torture/compile/pr89663-1.c: Same.
* gcc.c-torture/compile/pr89663-2.c: Same.
* gcc.c-torture/compile/pr96796.c: Same.
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