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authoraurel322008-10-12 13:44:36 +0200
committeraurel322008-10-12 13:44:36 +0200
commit5b7ada46e5eca0fa9c94def7d5fa548590fac826 (patch)
tree7597068207057e9e0db641bf760d53bb222da8be /hw
parenthw/apic.c: use __builtin funtions instead of assembly code (diff)
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Only use __builtin_* with GCC >= 3.4
Fix gcc 3.3 builds, broken in revision 5465. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5466 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw')
-rw-r--r--hw/apic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/apic.c b/hw/apic.c
index 46daf8a33a..42920869c1 100644
--- a/hw/apic.c
+++ b/hw/apic.c
@@ -107,7 +107,7 @@ static void apic_update_irq(APICState *s);
/* Find first bit starting from msb */
static int fls_bit(uint32_t value)
{
-#if defined(__GNUC__)
+#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
return 31 - __builtin_clz(value);
#else
unsigned int ret = 0;
@@ -127,7 +127,7 @@ static int fls_bit(uint32_t value)
/* Find first bit starting from lsb */
static int ffs_bit(uint32_t value)
{
-#if defined(__GNUC__)
+#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
return __builtin_ffs(value) - 1;
#else
unsigned int ret = 0;