tcg: add negsetcondi

This can be useful to write a shift bit extraction that does not
depend on TARGET_LONG_BITS.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20231019104648.389942-15-pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/include/tcg/tcg-op-common.h b/include/tcg/tcg-op-common.h
index 56d4e9cb9f2b729559c4213056aa53982a9c6e04..a0bae5df0181f0df4d6f90b0d996609a333afbba 100644 (file)
--- a/include/tcg/tcg-op-common.h
+++ b/include/tcg/tcg-op-common.h
@@ -346,6 +346,8 @@ void tcg_gen_setcondi_i32(TCGCond cond, TCGv_i32 ret,
                           TCGv_i32 arg1, int32_t arg2);
 void tcg_gen_negsetcond_i32(TCGCond cond, TCGv_i32 ret,
                             TCGv_i32 arg1, TCGv_i32 arg2);
+void tcg_gen_negsetcondi_i32(TCGCond cond, TCGv_i32 ret,
+                             TCGv_i32 arg1, int32_t arg2);
 void tcg_gen_movcond_i32(TCGCond cond, TCGv_i32 ret, TCGv_i32 c1,
                          TCGv_i32 c2, TCGv_i32 v1, TCGv_i32 v2);
 void tcg_gen_add2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al,
@@ -544,6 +546,8 @@ void tcg_gen_setcondi_i64(TCGCond cond, TCGv_i64 ret,
                           TCGv_i64 arg1, int64_t arg2);
 void tcg_gen_negsetcond_i64(TCGCond cond, TCGv_i64 ret,
                             TCGv_i64 arg1, TCGv_i64 arg2);
+void tcg_gen_negsetcondi_i64(TCGCond cond, TCGv_i64 ret,
+                             TCGv_i64 arg1, int64_t arg2);
 void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret, TCGv_i64 c1,
                          TCGv_i64 c2, TCGv_i64 v1, TCGv_i64 v2);
 void tcg_gen_add2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al,

diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h
index 3ead59e4594d0b5b94e0824f66aaa7798f525c0d..e81dd7dd9e7cc77be18351aa2effeb1f2ec0e796 100644 (file)
--- a/include/tcg/tcg-op.h
+++ b/include/tcg/tcg-op.h
@@ -199,6 +199,7 @@ DEF_ATOMIC2(tcg_gen_atomic_umax_fetch, i64)
 #define tcg_gen_setcond_tl tcg_gen_setcond_i64
 #define tcg_gen_setcondi_tl tcg_gen_setcondi_i64
 #define tcg_gen_negsetcond_tl tcg_gen_negsetcond_i64
+#define tcg_gen_negsetcondi_tl tcg_gen_negsetcondi_i64
 #define tcg_gen_mul_tl tcg_gen_mul_i64
 #define tcg_gen_muli_tl tcg_gen_muli_i64
 #define tcg_gen_div_tl tcg_gen_div_i64
@@ -317,6 +318,7 @@ DEF_ATOMIC2(tcg_gen_atomic_umax_fetch, i64)
 #define tcg_gen_setcond_tl tcg_gen_setcond_i32
 #define tcg_gen_setcondi_tl tcg_gen_setcondi_i32
 #define tcg_gen_negsetcond_tl tcg_gen_negsetcond_i32
+#define tcg_gen_negsetcondi_tl tcg_gen_negsetcondi_i32
 #define tcg_gen_mul_tl tcg_gen_mul_i32
 #define tcg_gen_muli_tl tcg_gen_muli_i32
 #define tcg_gen_div_tl tcg_gen_div_i32

diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index b4dbb2f2ba2afee12ed64a61523b2e5bfe0c05fd..828eb9ee460e03ce506cc85bec5c6ca4680045e3 100644 (file)
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -291,6 +291,12 @@ void tcg_gen_negsetcond_i32(TCGCond cond, TCGv_i32 ret,
     }
 }
 
+void tcg_gen_negsetcondi_i32(TCGCond cond, TCGv_i32 ret,
+                             TCGv_i32 arg1, int32_t arg2)
+{
+    tcg_gen_negsetcond_i32(cond, ret, arg1, tcg_constant_i32(arg2));
+}
+
 void tcg_gen_muli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
 {
     if (arg2 == 0) {
@@ -1602,6 +1608,12 @@ void tcg_gen_setcondi_i64(TCGCond cond, TCGv_i64 ret,
     }
 }
 
+void tcg_gen_negsetcondi_i64(TCGCond cond, TCGv_i64 ret,
+                             TCGv_i64 arg1, int64_t arg2)
+{
+    tcg_gen_negsetcond_i64(cond, ret, arg1, tcg_constant_i64(arg2));
+}
+
 void tcg_gen_negsetcond_i64(TCGCond cond, TCGv_i64 ret,
                             TCGv_i64 arg1, TCGv_i64 arg2)
 {