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[Qemu-devel] [PATCH v2 10/19] target-i386: fix CMPUNORDPS/D and CMPORDPS


From: Aurelien Jarno
Subject: [Qemu-devel] [PATCH v2 10/19] target-i386: fix CMPUNORDPS/D and CMPORDPS/D instructions
Date: Thu, 14 Apr 2011 01:11:05 +0200

SSE instructions CMPUNORDPS/D and CMPORDPS/D do not trigger an invalid
exception if operands are qNANs.

Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
 target-i386/ops_sse.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/target-i386/ops_sse.h b/target-i386/ops_sse.h
index 3232abd..986cbe3 100644
--- a/target-i386/ops_sse.h
+++ b/target-i386/ops_sse.h
@@ -924,11 +924,11 @@ void helper_ ## name ## sd (Reg *d, Reg *s)\
 #define FPU_CMPEQ(size, a, b) float ## size ## _eq(a, b, &env->sse_status) ? 
-1 : 0
 #define FPU_CMPLT(size, a, b) float ## size ## _lt(a, b, &env->sse_status) ? 
-1 : 0
 #define FPU_CMPLE(size, a, b) float ## size ## _le(a, b, &env->sse_status) ? 
-1 : 0
-#define FPU_CMPUNORD(size, a, b) float ## size ## _unordered(a, b, 
&env->sse_status) ? - 1 : 0
+#define FPU_CMPUNORD(size, a, b) float ## size ## _unordered_quiet(a, b, 
&env->sse_status) ? - 1 : 0
 #define FPU_CMPNEQ(size, a, b) float ## size ## _eq(a, b, &env->sse_status) ? 
0 : -1
 #define FPU_CMPNLT(size, a, b) float ## size ## _lt(a, b, &env->sse_status) ? 
0 : -1
 #define FPU_CMPNLE(size, a, b) float ## size ## _le(a, b, &env->sse_status) ? 
0 : -1
-#define FPU_CMPORD(size, a, b) float ## size ## _unordered(a, b, 
&env->sse_status) ? 0 : -1
+#define FPU_CMPORD(size, a, b) float ## size ## _unordered_quiet(a, b, 
&env->sse_status) ? 0 : -1
 
 SSE_HELPER_CMP(cmpeq, FPU_CMPEQ)
 SSE_HELPER_CMP(cmplt, FPU_CMPLT)
-- 
1.7.2.3




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