Mesa (master): gallivm: Fix 8bit comparisons.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Tue Jul 6 10:55:34 UTC 2010
Module: Mesa
Branch: master
Commit: b3d4e5bd26a44870af7d2413cca7a6f576a0984a
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b3d4e5bd26a44870af7d2413cca7a6f576a0984a
Author: José Fonseca <jfonseca at vmware.com>
Date: Tue Jun 15 15:34:16 2010 +0100
gallivm: Fix 8bit comparisons.
---
src/gallium/auxiliary/gallivm/lp_bld_logic.c | 8 +++-----
1 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_logic.c b/src/gallium/auxiliary/gallivm/lp_bld_logic.c
index d13fa1a..7f41764 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_logic.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_logic.c
@@ -187,12 +187,10 @@ lp_build_compare(LLVMBuilderRef builder,
return lp_build_undef(type);
}
- /* There are no signed byte and unsigned word/dword comparison
- * instructions. So flip the sign bit so that the results match.
+ /* There are no unsigned comparison instructions. So flip the sign bit
+ * so that the results match.
*/
- if(table[func].gt &&
- ((type.width == 8 && type.sign) ||
- (type.width != 8 && !type.sign))) {
+ if (table[func].gt && !type.sign) {
LLVMValueRef msb = lp_build_const_int_vec(type, (unsigned long long)1 << (type.width - 1));
a = LLVMBuildXor(builder, a, msb, "");
b = LLVMBuildXor(builder, b, msb, "");
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