[rtems-central commit] spec: More unit tests for compiler builtins
Sebastian Huber
sebh at rtems.org
Tue Nov 7 12:37:24 UTC 2023
Module: rtems-central
Branch: master
Commit: 9ee3c014b65d3ed0cb13fa42365e72df1561e082
Changeset: http://git.rtems.org/rtems-central/commit/?id=9ee3c014b65d3ed0cb13fa42365e72df1561e082
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Thu Nov 2 11:34:16 2023 +0100
spec: More unit tests for compiler builtins
---
spec/compiler/unit/builtins.yml | 351 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 346 insertions(+), 5 deletions(-)
diff --git a/spec/compiler/unit/builtins.yml b/spec/compiler/unit/builtins.yml
index 66ab2495..cad01f41 100644
--- a/spec/compiler/unit/builtins.yml
+++ b/spec/compiler/unit/builtins.yml
@@ -51,21 +51,362 @@ test-actions:
- action-brief: |
Check the return value of __builtin_ctz() for a sample set of inputs.
action-code: |
- volatile int n;
+ volatile unsigned int n;
- n = 1;
+ n = 1U;
T_eq_int( __builtin_ctz( n ), 0 );
- n = 1 << 31;
+ n = 1U << 31;
T_eq_int( __builtin_ctz( n ), 31 );
- n = ~0;
+ n = ~0U;
T_eq_int( __builtin_ctz( n ), 0 );
checks: []
links:
- name: __builtin_ctz
role: unit-test
uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_ctzll() for a sample set of inputs.
+ action-code: |
+ volatile unsigned long long n;
+
+ n = 1ULL;
+ T_eq_int( __builtin_ctzll( n ), 0 );
+
+ n = 1ULL << 31;
+ T_eq_int( __builtin_ctzll( n ), 31 );
+
+ n = 1ULL << 32;
+ T_eq_int( __builtin_ctzll( n ), 32 );
+
+ n = 1ULL << 63;
+ T_eq_int( __builtin_ctzll( n ), 63 );
+
+ n = ~0ULL;
+ T_eq_int( __builtin_ctzll( n ), 0 );
+ checks: []
+ links:
+ - name: __builtin_ctzll
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_ffs() for a sample set of inputs.
+ action-code: |
+ volatile unsigned int n;
+
+ n = 1U;
+ T_eq_int( __builtin_ffs( n ), 1 );
+
+ n = 1U << 31;
+ T_eq_int( __builtin_ffs( n ), 32 );
+
+ n = 0U;
+ T_eq_int( __builtin_ffs( n ), 0 );
+ checks: []
+ links:
+ - name: __builtin_ffs
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_ffsll() for a sample set of inputs.
+ action-code: |
+ volatile unsigned long long n;
+
+ n = 1ULL;
+ T_eq_int( __builtin_ffsll( n ), 1 );
+
+ n = 1ULL << 31;
+ T_eq_int( __builtin_ffsll( n ), 32 );
+
+ n = 1ULL << 32;
+ T_eq_int( __builtin_ffsll( n ), 33 );
+
+ n = 1ULL << 63;
+ T_eq_int( __builtin_ffsll( n ), 64 );
+
+ n = 0ULL;
+ T_eq_int( __builtin_ffsll( n ), 0 );
+ checks: []
+ links:
+ - name: __builtin_ffsll
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_parity() for a sample set of inputs.
+ action-code: |
+ volatile unsigned int n;
+
+ n = 1U;
+ T_eq_int( __builtin_parity( n ), 1 );
+
+ n = ~0U;
+ T_eq_int( __builtin_parity( n ), 0 );
+ checks: []
+ links:
+ - name: __builtin_parity
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_parityll() for a sample set of inputs.
+ action-code: |
+ volatile unsigned long long n;
+
+ n = 1ULL;
+ T_eq_int( __builtin_parityll( n ), 1 );
+
+ n = ~0ULL;
+ T_eq_int( __builtin_parityll( n ), 0 );
+ checks: []
+ links:
+ - name: __builtin_parityll
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_popcount() for a sample set of inputs.
+ action-code: |
+ volatile unsigned int n;
+
+ n = 0U;
+ T_eq_int( __builtin_popcount( n ), 0 );
+
+ n = 1U;
+ T_eq_int( __builtin_popcount( n ), 1 );
+
+ n = ~0U;
+ T_eq_int( __builtin_popcount( n ), 32 );
+ checks: []
+ links:
+ - name: __builtin_popcount
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_popcountll() for a sample set of inputs.
+ action-code: |
+ volatile unsigned long long n;
+
+ n = 0ULL;
+ T_eq_int( __builtin_popcountll( n ), 0 );
+
+ n = 1ULL;
+ T_eq_int( __builtin_popcountll( n ), 1 );
+
+ n = ~0ULL;
+ T_eq_int( __builtin_popcountll( n ), 64 );
+ checks: []
+ links:
+ - name: __builtin_popcountll
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_bswap32() for a sample set of inputs.
+ action-code: |
+ volatile uint32_t n;
+
+ n = UINT32_C( 0 );
+ T_eq_u32( __builtin_bswap32( n ), n );
+
+ n = UINT32_C( 1 );
+ T_eq_u32( __builtin_bswap32( n ), n << 24 );
+
+ n = UINT32_C( 0x12345678 );
+ T_eq_u32( __builtin_bswap32( n ), UINT32_C( 0x78563412 ) );
+
+ n = ~UINT32_C( 0 );
+ T_eq_u32( __builtin_bswap32( n ), n );
+ checks: []
+ links:
+ - name: __builtin_bswap32
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check the return value of __builtin_bswap64() for a sample set of inputs.
+ action-code: |
+ volatile uint64_t n;
+
+ n = UINT64_C( 0 );
+ T_eq_u64( __builtin_bswap64( n ), n );
+
+ n = UINT64_C( 1 );
+ T_eq_u64( __builtin_bswap64( n ), n << 56 );
+
+ n = UINT64_C( 0x123456789abcdef0 );
+ T_eq_u64( __builtin_bswap64( n ), UINT64_C( 0xf0debc9a78563412 ) );
+
+ n = ~UINT64_C( 0 );
+ T_eq_u64( __builtin_bswap64( n ), n );
+ checks: []
+ links:
+ - name: __builtin_popcount64
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check signed 64-bit comparisons for a sample set of values.
+ action-code: |
+ volatile int64_t a;
+ volatile int64_t b;
+
+ a = INT64_C( 0 );
+ b = INT64_C( 0 );
+ T_false( a < b );
+
+ a = INT64_C( 0 );
+ b = INT64_C( 1 );
+ T_true( a < b );
+
+ a = INT64_C( 0x123456789abcdef0 );
+ b = INT64_C( 0xf0debc9a78563412 );
+ T_false( a < b );
+
+ a = INT64_C( 0xf0debc9a78563412 );
+ b = INT64_C( 0x123456789abcdef0 );
+ T_true( a < b );
+ checks: []
+ links:
+ - name: __cmpdi2
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check unsigned 64-bit comparisons for a sample set of values.
+ action-code: |
+ volatile uint64_t a;
+ volatile uint64_t b;
+
+ a = UINT64_C( 0 );
+ b = UINT64_C( 0 );
+ T_false( a < b );
+
+ a = UINT64_C( 0 );
+ b = UINT64_C( 1 );
+ T_true( a < b );
+
+ a = UINT64_C( 0x123456789abcdef0 );
+ b = UINT64_C( 0xf0debc9a78563412 );
+ T_true( a < b );
+
+ a = UINT64_C( 0xf0debc9a78563412 );
+ b = UINT64_C( 0x123456789abcdef0 );
+ T_false( a < b );
+ checks: []
+ links:
+ - name: __ucmpdi2
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check signed 64-bit arithmetic left shift for a sample set of values.
+ action-code: |
+ volatile int64_t i;
+ volatile int s;
+
+ i = INT64_C( 1 );
+ s = 0;
+ T_eq_i64( i << s, INT64_C( 1 ) );
+
+ i = -INT64_C( 1 );
+ s = 0;
+ T_eq_i64( i << s, -INT64_C( 1 ) );
+
+ i = INT64_C( 1 );
+ s = 1;
+ T_eq_i64( i << s, INT64_C( 2 ) );
+
+ i = -INT64_C( 1 );
+ s = 1;
+ T_eq_i64( i << s, -INT64_C( 2 ) );
+ checks: []
+ links:
+ - name: __ashldi2
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check signed 64-bit arithmetic right shift for a sample set of values.
+ action-code: |
+ volatile int64_t i;
+ volatile int s;
+
+ i = INT64_C( 1 );
+ s = 0;
+ T_eq_i64( i >> s, INT64_C( 1 ) );
+
+ i = -INT64_C( 1 );
+ s = 0;
+ T_eq_i64( i >> s, -INT64_C( 1 ) );
+
+ i = INT64_C( 2 );
+ s = 1;
+ T_eq_i64( i >> s, INT64_C( 1 ) );
+
+ i = -INT64_C( 2 );
+ s = 1;
+ T_eq_i64( i >> s, -INT64_C( 1 ) );
+ checks: []
+ links:
+ - name: __ashrdi2
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check unsigned 64-bit logical right shift for a sample set of values.
+ action-code: |
+ volatile uint64_t i;
+ volatile int s;
+
+ i = UINT64_C( 1 );
+ s = 0;
+ T_eq_u64( i >> s, UINT64_C( 1 ) );
+
+ i = -UINT64_C( 1 );
+ s = 0;
+ T_eq_u64( i >> s, UINT64_C( 0xffffffffffffffff ) );
+
+ i = UINT64_C( 2 );
+ s = 1;
+ T_eq_u64( i >> s, UINT64_C( 1 ) );
+
+ i = -UINT64_C( 2 );
+ s = 1;
+ T_eq_u64( i >> s, UINT64_C( 0x7fffffffffffffff ) );
+ checks: []
+ links:
+ - name: __lshrdi2
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check signed 64-bit multiplication for a sample set of values.
+ action-code: |
+ volatile int64_t a;
+ volatile int64_t b;
+
+ a = INT64_C( 1 );
+ b = INT64_C( 1 );
+ T_eq_i64( a * b, INT64_C( 1 ) );
+
+ a = INT64_C( 1 );
+ b = INT64_C( 0 );
+ T_eq_i64( a * b, INT64_C( 0 ) );
+
+ a = INT64_C( 0 );
+ b = INT64_C( 1 );
+ T_eq_i64( a * b, INT64_C( 0 ) );
+ checks: []
+ links:
+ - name: __negdi2
+ role: unit-test
+ uid: ../../if/domain
+- action-brief: |
+ Check signed 64-bit negation for a sample set of values.
+ action-code: |
+ volatile int64_t i;
+
+ i = INT64_C( 1 );
+ T_eq_i64( -i, -INT64_C( 1 ) );
+
+ i = -INT64_C( 1 );
+ T_eq_i64( -i, INT64_C( 1 ) );
+ checks: []
+ links:
+ - name: __negdi2
+ role: unit-test
+ uid: ../../if/domain
- action-brief: |
Check signed 64-bit divisions for a sample set of values.
action-code: |
@@ -423,7 +764,7 @@ test-actions:
T_eq_u64( n % d, UINT64_C( 0 ) );
checks: []
links:
- - name: __moddi3
+ - name: __umoddi3
role: unit-test
uid: ../../if/domain
test-brief: |
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