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| author | Tom de Vries <tdevries@suse.de> | 2020-08-11 18:20:17 +0200 |
|---|---|---|
| committer | Tom de Vries <tdevries@suse.de> | 2020-08-12 14:04:41 +0200 |
| commit | fb9b3c0ff7d347934b364e3ab06d4cf56726df33 (patch) | |
| tree | ec1acaec76a2b08cbdc686880ceeb5e73d44ea45 /gcc | |
| parent | b9c7fe59f9f66ecc091e215c826ecd1a04d032dc (diff) | |
| download | gcc-fb9b3c0ff7d347934b364e3ab06d4cf56726df33.zip gcc-fb9b3c0ff7d347934b364e3ab06d4cf56726df33.tar.gz gcc-fb9b3c0ff7d347934b364e3ab06d4cf56726df33.tar.bz2 | |
[testsuite] Add effective target large_initializer
When compiling builtin-object-size-21.c for nvptx, cc1 times out while
emitting the initializer for global variable xm3_3.
With x86_64, we are able to emit the initializer with a few lines of assembly:
...
xm3_3:
.byte 0
.zero 9223372036854775803
.byte 1
.byte 2
.byte 3
...
but with nvptx, we don't have some something similar available, and thus
generate:
...
.visible .global .align 1 .u32 xm3_3[2305843009213693952] =
{ 0, 0, 0, ...
...
Introduce an effective target large_initializer, returning false for nvptx,
and require it for test-cases with large initializers.
Tested on nvptx with make check-gcc.
gcc/testsuite/ChangeLog:
PR testsuite/96566
* lib/target-supports.exp (check_effective_target_large_initializer):
New proc.
* gcc.dg/builtin-object-size-21.c: Require large_initializer.
* gcc.dg/strlenopt-55.c: Same.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.dg/builtin-object-size-21.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/strlenopt-55.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/lib/target-supports.exp | 11 |
3 files changed, 15 insertions, 2 deletions
diff --git a/gcc/testsuite/gcc.dg/builtin-object-size-21.c b/gcc/testsuite/gcc.dg/builtin-object-size-21.c index 1c42374..7e0f85f 100644 --- a/gcc/testsuite/gcc.dg/builtin-object-size-21.c +++ b/gcc/testsuite/gcc.dg/builtin-object-size-21.c @@ -1,7 +1,8 @@ /* PR middle-end/92815 - spurious -Wstringop-overflow writing into a flexible array of an extern struct { dg-do compile } - { dg-options "-Wall -fdump-tree-optimized" } */ + { dg-options "-Wall -fdump-tree-optimized" } + { dg-require-effective-target large_initializer } */ #define PTRDIFF_MAX __PTRDIFF_MAX__ diff --git a/gcc/testsuite/gcc.dg/strlenopt-55.c b/gcc/testsuite/gcc.dg/strlenopt-55.c index ea6fb22..ca89ecd 100644 --- a/gcc/testsuite/gcc.dg/strlenopt-55.c +++ b/gcc/testsuite/gcc.dg/strlenopt-55.c @@ -3,7 +3,8 @@ Verify that strlen() of braced initialized array is folded { dg-do compile } - { dg-options "-O1 -Wall -fdump-tree-gimple -fdump-tree-optimized" } */ + { dg-options "-O1 -Wall -fdump-tree-gimple -fdump-tree-optimized" } + { dg-require-effective-target large_initializer } */ #include "strlenopt.h" diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index e79015b..4e0d45a 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -10424,3 +10424,14 @@ proc check_effective_target_msp430_large {} { #endif } ""] } + +# Return 1 if the target has an efficient means to encode large initializers +# in the assembly. + +proc check_effective_target_large_initializer { } { + if { [istarget nvptx*-*-*] } { + return 0 + } + + return 1 +} |