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authorChristoph Müllner <christoph.muellner@vrull.eu>2023-04-25 15:24:13 +0200
committerKito Cheng <kito.cheng@sifive.com>2023-07-12 16:12:27 +0800
commita3480aacc4ab01651725a63e05829a43bc23d549 (patch)
tree8387a6975b72d1a5b248e0d1b72c4046429c35d2
parentb621883620b127caf20e88e59fa73e666960013e (diff)
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riscv: Define Xmode macro
Define a Xmode macro that specifies the registers size (XLEN) similar to Pmode. This allows the backend code to write generic RV32/RV64 C code (under certain circumstances). gcc/ChangeLog: * config/riscv/riscv.h (Xmode): New macro. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
-rw-r--r--gcc/config/riscv/riscv.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/config/riscv/riscv.h b/gcc/config/riscv/riscv.h
index 83dcac1..7d548ac 100644
--- a/gcc/config/riscv/riscv.h
+++ b/gcc/config/riscv/riscv.h
@@ -800,6 +800,10 @@ typedef struct {
#define Pmode word_mode
+/* Specify the machine mode that registers have. */
+
+#define Xmode (TARGET_64BIT ? DImode : SImode)
+
/* Give call MEMs SImode since it is the "most permissive" mode
for both 32-bit and 64-bit targets. */