diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/arm/mmx-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/arm/mmx-1.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/arm/mmx-1.c b/gcc-4.9/gcc/testsuite/gcc.target/arm/mmx-1.c new file mode 100644 index 000000000..d13c98284 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/arm/mmx-1.c @@ -0,0 +1,25 @@ +/* Verify that if IP is saved to ensure stack alignment, we don't load + it into sp. */ +/* { dg-do compile } */ +/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-mcpu=*" } { "-mcpu=iwmmxt" } } */ +/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-mabi=*" } { "-mabi=iwmmxt" } } */ +/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-march=*" } { "-march=iwmmxt" } } */ +/* { dg-skip-if "Test is specific to ARM mode" { arm*-*-* } { "-mthumb" } { "" } } */ +/* { dg-options "-O -mno-apcs-frame -mcpu=iwmmxt -mabi=iwmmxt" } */ +/* { dg-require-effective-target arm32 } */ +/* { dg-require-effective-target arm_iwmmxt_ok } */ +/* { dg-final { scan-assembler "ldmfd\[ ]sp!.*ip,\[ ]*pc" } } */ + +/* This function uses all the call-saved registers, namely r4, r5, r6, + r7, r8, r9, sl, fp. Since we also save lr, that leaves an odd + number of registers, and the compiler will push ip to align the + stack. Make sure that we restore ip into ip, not into sp as is + done when using a frame pointer. The -mno-apcs-frame option + permits the frame pointer to be used as an ordinary register. */ + +void +foo(void) +{ + __asm volatile ("" : : : + "r4", "r5", "r6", "r7", "r8", "r9", "sl", "fp", "lr"); +} |