Fix overflow issue of p-ext multiply instructions (#1053)

riscv-software-src · Jul 28, 2022 · 66fd65c · 66fd65c
1 parent 8d016bf
commit 66fd65c
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Showing 8 changed files with 8 additions and 8 deletions.
diff --git a/riscv/insns/smul16.h b/riscv/insns/smul16.h
@@ -1,3 +1,3 @@
 P_MUL_LOOP(16, {
-  pd = ps1 * ps2;
+  pd = (int32_t)ps1 * (int32_t)ps2;
 })
diff --git a/riscv/insns/smul8.h b/riscv/insns/smul8.h
@@ -1,3 +1,3 @@
 P_MUL_LOOP(8, {
-  pd = ps1 * ps2;
+  pd = (int16_t)ps1 * (int16_t)ps2;
 })
diff --git a/riscv/insns/smulx16.h b/riscv/insns/smulx16.h
@@ -1,3 +1,3 @@
 P_MUL_CROSS_LOOP(16, {
-  pd = ps1 * ps2;
+  pd = (int32_t)ps1 * (int32_t)ps2;
 })
diff --git a/riscv/insns/smulx8.h b/riscv/insns/smulx8.h
@@ -1,3 +1,3 @@
 P_MUL_CROSS_LOOP(8, {
-  pd = ps1 * ps2;
+  pd = (int16_t)ps1 * (int16_t)ps2;
 })
diff --git a/riscv/insns/umul16.h b/riscv/insns/umul16.h
@@ -1,3 +1,3 @@
 P_MUL_ULOOP(16, {
-  pd = ps1 * ps2;
+  pd = (uint32_t)ps1 * (uint32_t)ps2;
 })
diff --git a/riscv/insns/umul8.h b/riscv/insns/umul8.h
@@ -1,3 +1,3 @@
 P_MUL_ULOOP(8, {
-  pd = ps1 * ps2;
+  pd = (uint16_t)ps1 * (uint16_t)ps2;
 })
diff --git a/riscv/insns/umulx16.h b/riscv/insns/umulx16.h
@@ -1,3 +1,3 @@
 P_MUL_CROSS_ULOOP(16, {
-  pd = ps1 * ps2;
+  pd = (uint32_t)ps1 * (uint32_t)ps2;
 })
diff --git a/riscv/insns/umulx8.h b/riscv/insns/umulx8.h
@@ -1,3 +1,3 @@
 P_MUL_CROSS_ULOOP(8, {
-  pd = ps1 * ps2;
+  pd = (uint16_t)ps1 * (uint16_t)ps2;
 })