diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/stdarg-4.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/stdarg-4.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/stdarg-4.c b/gcc/testsuite/gcc.dg/tree-ssa/stdarg-4.c new file mode 100644 index 000000000..d0e47e18b --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/stdarg-4.c @@ -0,0 +1,94 @@ +/* First dg-final line after each function is for architectures that use + a struct {...} va_list[1] with separate GPR and FPR counters in the + structure. Second dg-final line is for architectures that use void * + or char * va_list. */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-stdarg" } */ + +#include <stdarg.h> + +extern void foo (int, va_list); +extern void bar (int); +long x; +double d; + +/* Here va_arg can be executed more than once for one va_start. All GPR + registers needs to be saved. */ +void +f1 (int i, ...) +{ + va_list ap; + va_start (ap, i); + while (i-- > 0) + x = va_arg (ap, long); + va_end (ap); +} +/* { dg-final { scan-tree-dump "f1: va_list escapes 0, needs to save all GPR units and 0 FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */ +/* { dg-final { scan-tree-dump "f1: va_list escapes 0, needs to save all GPR units and 0 FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */ +/* { dg-final { scan-tree-dump "f1: va_list escapes 0, needs to save all GPR units and 1" "stdarg" { target alpha*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f1: va_list escapes 0, needs to save all GPR units and 0 FPR units" "stdarg" { target s390*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f1: va_list escapes \[01\], needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */ +/* { dg-final { scan-tree-dump "f1: va_list escapes \[01\], needs to save all GPR units" "stdarg" { target ia64-*-* } } } */ +/* { dg-final { scan-tree-dump "f1: va_list escapes \[01\], needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */ + +void +f2 (int i, ...) +{ + va_list ap; + va_start (ap, i); + while (i-- > 0) + d = va_arg (ap, double); + va_end (ap); +} +/* { dg-final { scan-tree-dump "f2: va_list escapes 0, needs to save 0 GPR units and all FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */ +/* { dg-final { scan-tree-dump "f2: va_list escapes 0, needs to save 0 GPR units and all FPR units" "stdarg" { target { powerpc*-*-linux* && { powerpc_fprs && ilp32 } } } } } */ +/* { dg-final { scan-tree-dump "f2: va_list escapes 0, needs to save all GPR units and 2" "stdarg" { target alpha*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f2: va_list escapes 0, needs to save 0 GPR units and all FPR units" "stdarg" { target s390*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f2: va_list escapes \[01\], needs to save all GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */ +/* { dg-final { scan-tree-dump "f2: va_list escapes \[01\], needs to save all GPR units" "stdarg" { target ia64-*-* } } } */ +/* { dg-final { scan-tree-dump "f2: va_list escapes \[01\], needs to save all GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */ + +/* Here va_arg can be executed at most as many times as va_start. + Only one GPR needs to be saved. */ +void +f3 (int i, ...) +{ + va_list ap; + int j = i; + while (j-- > 0) + { + va_start (ap, i); + x = va_arg (ap, long); + va_end (ap); + bar (x); + } +} +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save \[148\] GPR units and 0 FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */ +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save \[148\] GPR units and 0 FPR units" "stdarg" { target { powerpc*-*-linux* && ilp32 } } } } */ +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save 8 GPR units and 1" "stdarg" { target alpha*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save 1 GPR units and 0 FPR units" "stdarg" { target s390*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save \[148\] GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */ +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save \[148\] GPR units" "stdarg" { target ia64-*-* } } } */ +/* { dg-final { scan-tree-dump "f3: va_list escapes 0, needs to save \[148\] GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */ + +void +f4 (int i, ...) +{ + va_list ap; + int j = i; + while (j-- > 0) + { + va_start (ap, i); + d = va_arg (ap, double); + va_end (ap); + bar (d + 2.5); + } +} +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save 0 GPR units and \[1-9\]\[0-9\]* FPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && lp64 } } } } */ +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save 0 GPR units and \[1-9\]\[0-9\]* FPR units" "stdarg" { target { powerpc*-*-linux* && { powerpc_fprs && ilp32 } } } } } */ +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save 8 GPR units and 2" "stdarg" { target alpha*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save 0 GPR units and 1 FPR units" "stdarg" { target s390*-*-linux* } } } */ +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save \[148\] GPR units" "stdarg" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } } */ +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save \[148\] GPR units" "stdarg" { target ia64-*-* } } } */ +/* { dg-final { scan-tree-dump "f4: va_list escapes 0, needs to save \[148\] GPR units" "stdarg" { target { powerpc*-*-* && lp64 } } } } */ +/* { dg-final { cleanup-tree-dump "stdarg" } } */ |