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| author | Kevin Ryde <user42@zip.com.au> | 2000-10-14 01:08:57 +0200 |
|---|---|---|
| committer | Kevin Ryde <user42@zip.com.au> | 2000-10-14 01:08:57 +0200 |
| commit | 212df4a826d5ae45f8484e7a4e0b5932737cb877 (patch) | |
| tree | c014741d723cd9d333160972d8f8d9d0ecd48239 /mpn/x86/x86-defs.m4 | |
| parent | 2a27485fd2a097a9be4f6d39379b34d44529d349 (diff) | |
| download | gmp-212df4a826d5ae45f8484e7a4e0b5932737cb877.tar.gz | |
* mpn/x86/x86-defs.m4 (ASSERT): Allow no condition, to just emit code.
Diffstat (limited to 'mpn/x86/x86-defs.m4')
| -rw-r--r-- | mpn/x86/x86-defs.m4 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mpn/x86/x86-defs.m4 b/mpn/x86/x86-defs.m4 index 353d5067b..b3650c48b 100644 --- a/mpn/x86/x86-defs.m4 +++ b/mpn/x86/x86-defs.m4 @@ -679,7 +679,7 @@ m4_assert_defined(`WANT_SHLDL_CL') ``$1' `$2', `$3', `$4'')') -dnl Usage: ASSERT(cond, instructions) +dnl Usage: ASSERT([cond][,instructions]) dnl dnl If WANT_ASSERT is 1, output the given instructions and expect the given dnl flags condition to then be satisfied. For example, @@ -695,10 +695,18 @@ dnl When `instructions' is not empty, a pushf/popf is added to preserve the dnl flags, but the instructions themselves must preserve any registers that dnl matter. FRAME is adjusted for the push and pop, so the instructions dnl given can use defframe() stack variables. +dnl +dnl The condition can be omitted to just output the given instructions when +dnl assertion checking is wanted. In this case the pushf/popf is omitted. +dnl For example, +dnl +dnl ASSERT(, `movl %eax, VAR_KEEPVAL') define(ASSERT, m4_assert_numargs_range(1,2) `ifelse(WANT_ASSERT,1, +`ifelse(`$1',, + `$2', `C ASSERT ifelse(`$2',,,` pushf ifdef(`FRAME',`FRAME_pushl()')') $2 @@ -706,7 +714,7 @@ ifelse(`$2',,,` pushf ifdef(`FRAME',`FRAME_pushl()')') ud2 C assertion failed L(ASSERT_ok`'ASSERT_counter): ifelse(`$2',,,` popf ifdef(`FRAME',`FRAME_popl()')') -define(`ASSERT_counter',incr(ASSERT_counter))')') +define(`ASSERT_counter',incr(ASSERT_counter))')')') define(ASSERT_counter,1) |