From d4e15084e2155c7e7c5e872b3a88e64df27aa4e6 Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@embecosm.com>
Date: Fri, 26 Jan 2024 21:47:40 +0000
Subject: [PATCH] RISC-V/testsuite: Add RTL pr105314.c testcase variants
Add a pair of RTL tests, for RV64 and RV32 respectively, corresponding
to the existing pr105314.c test. They have been produced from RTL code
as at the entry of the "ce1" pass for pr105314.c compiled at -O3.
gcc/testsuite/
* gcc.target/riscv/pr105314-rtl.c: New file.
* gcc.target/riscv/pr105314-rtl32.c: New file.
---
gcc/testsuite/gcc.target/riscv/pr105314-rtl.c | 78 +++++++++++++++++++
.../gcc.target/riscv/pr105314-rtl32.c | 78 +++++++++++++++++++
2 files changed, 156 insertions(+)
create mode 100644 gcc/testsuite/gcc.target/riscv/pr105314-rtl.c
create mode 100644 gcc/testsuite/gcc.target/riscv/pr105314-rtl32.c
diff --git a/gcc/testsuite/gcc.target/riscv/pr105314-rtl.c b/gcc/testsuite/gcc.target/riscv/pr105314-rtl.c
new file mode 100644
index 000000000000..693291f4dbd2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/pr105314-rtl.c
@@ -0,0 +1,78 @@
+/* PR rtl-optimization/105314 */
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" "-flto" } } */
+/* { dg-options "-fdump-rtl-ce1" } */
+
+long __RTL (startwith ("ce1"))
+foo (long a, long b, long c)
+{
+(function "foo"
+ (param "a"
+ (DECL_RTL (reg/v:DI <1> [ a ]))
+ (DECL_RTL_INCOMING (reg:DI a0 [ a ])))
+ (param "b"
+ (DECL_RTL (reg/v:DI <2> [ b ]))
+ (DECL_RTL_INCOMING (reg:DI a1 [ b ])))
+ (param "c"
+ (DECL_RTL (reg/v:DI <3> [ c ]))
+ (DECL_RTL_INCOMING (reg:DI a2 [ c ])))
+ (insn-chain
+ (block 2
+ (edge-from entry (flags "FALLTHRU"))
+ (cnote 8 [bb 2] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 2 (set (reg/v:DI <1> [ a ])
+ (reg:DI a0 [ a ])) "pr105314.c":8:1
+ (expr_list:REG_DEAD (reg:DI a0 [ a ])))
+ (cinsn 4 (set (reg/v:DI <3> [ c ])
+ (reg:DI a2 [ c ])) "pr105314.c":8:1
+ (expr_list:REG_DEAD (reg:DI a2 [ c ])))
+ (cnote 5 NOTE_INSN_FUNCTION_BEG)
+ (cjump_insn 10 (set (pc)
+ (if_then_else (ne (reg/v:DI <3> [ c ])
+ (const_int 0))
+ (label_ref:DI 23)
+ (pc))) "pr105314.c":9:6
+ (expr_list:REG_DEAD (reg/v:DI <3> [ c ])
+ (int_list:REG_BR_PROB 536870916)))
+ (edge-to 4)
+ (edge-to 3 (flags "FALLTHRU"))
+ ) ;; block 2
+ (block 3
+ (edge-from 2 (flags "FALLTHRU"))
+ (cnote 11 [bb 3] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 6 (set (reg/v:DI <0> [ <retval> ])
+ (reg/v:DI <1> [ a ])) "pr105314.c":9:6
+ (expr_list:REG_DEAD (reg/v:DI <1> [ a ])))
+ (edge-to 5 (flags "FALLTHRU"))
+ ) ;; block 3
+ (block 4
+ (edge-from 2)
+ (clabel 23 3)
+ (cnote 22 [bb 4] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 7 (set (reg/v:DI <0> [ <retval> ])
+ (const_int 0)) "pr105314.c":10:7)
+ (edge-to 5 (flags "FALLTHRU"))
+ ) ;; block 4
+ (block 5
+ (edge-from 4 (flags "FALLTHRU"))
+ (edge-from 3 (flags "FALLTHRU"))
+ (clabel 16 1)
+ (cnote 19 [bb 5] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 17 (set (reg/i:DI a0)
+ (reg/v:DI <0> [ <retval> ])) "pr105314.c":12:1
+ (expr_list:REG_DEAD (reg/v:DI <0> [ <retval> ])))
+ (cinsn 18 (use (reg/i:DI a0)) "pr105314.c":12:1)
+ (edge-to exit (flags "FALLTHRU"))
+ ) ;; block 5
+ ) ;; insn-chain
+ (crtl
+ (return_rtx
+ (reg/i:DI a0)
+ ) ;; return_rtx
+ ) ;; crtl
+) ;; function "foo"
+}
+
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_store_flag_mask" 1 "ce1" } } */
+/* { dg-final { scan-assembler-not "\\s(?:beq|bne)\\s" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/pr105314-rtl32.c b/gcc/testsuite/gcc.target/riscv/pr105314-rtl32.c
new file mode 100644
index 000000000000..9f9600f7679f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/pr105314-rtl32.c
@@ -0,0 +1,78 @@
+/* PR rtl-optimization/105314 */
+/* { dg-do compile } */
+/* { dg-require-effective-target rv32 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" "-flto" } } */
+/* { dg-options "-fdump-rtl-ce1" } */
+
+long __RTL (startwith ("ce1"))
+foo (long a, long b, long c)
+{
+(function "foo"
+ (param "a"
+ (DECL_RTL (reg/v:SI <1> [ a ]))
+ (DECL_RTL_INCOMING (reg:SI a0 [ a ])))
+ (param "b"
+ (DECL_RTL (reg/v:SI <2> [ b ]))
+ (DECL_RTL_INCOMING (reg:SI a1 [ b ])))
+ (param "c"
+ (DECL_RTL (reg/v:SI <3> [ c ]))
+ (DECL_RTL_INCOMING (reg:SI a2 [ c ])))
+ (insn-chain
+ (block 2
+ (edge-from entry (flags "FALLTHRU"))
+ (cnote 8 [bb 2] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 2 (set (reg/v:SI <1> [ a ])
+ (reg:SI a0 [ a ])) "pr105314.c":8:1
+ (expr_list:REG_DEAD (reg:SI a0 [ a ])))
+ (cinsn 4 (set (reg/v:SI <3> [ c ])
+ (reg:SI a2 [ c ])) "pr105314.c":8:1
+ (expr_list:REG_DEAD (reg:SI a2 [ c ])))
+ (cnote 5 NOTE_INSN_FUNCTION_BEG)
+ (cjump_insn 10 (set (pc)
+ (if_then_else (ne (reg/v:SI <3> [ c ])
+ (const_int 0))
+ (label_ref:SI 23)
+ (pc))) "pr105314.c":9:6
+ (expr_list:REG_DEAD (reg/v:SI <3> [ c ])
+ (int_list:REG_BR_PROB 536870916)))
+ (edge-to 4)
+ (edge-to 3 (flags "FALLTHRU"))
+ ) ;; block 2
+ (block 3
+ (edge-from 2 (flags "FALLTHRU"))
+ (cnote 11 [bb 3] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 6 (set (reg/v:SI <0> [ <retval> ])
+ (reg/v:SI <1> [ a ])) "pr105314.c":9:6
+ (expr_list:REG_DEAD (reg/v:SI <1> [ a ])))
+ (edge-to 5 (flags "FALLTHRU"))
+ ) ;; block 3
+ (block 4
+ (edge-from 2)
+ (clabel 23 3)
+ (cnote 22 [bb 4] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 7 (set (reg/v:SI <0> [ <retval> ])
+ (const_int 0)) "pr105314.c":10:7)
+ (edge-to 5 (flags "FALLTHRU"))
+ ) ;; block 4
+ (block 5
+ (edge-from 4 (flags "FALLTHRU"))
+ (edge-from 3 (flags "FALLTHRU"))
+ (clabel 16 1)
+ (cnote 19 [bb 5] NOTE_INSN_BASIC_BLOCK)
+ (cinsn 17 (set (reg/i:SI a0)
+ (reg/v:SI <0> [ <retval> ])) "pr105314.c":12:1
+ (expr_list:REG_DEAD (reg/v:SI <0> [ <retval> ])))
+ (cinsn 18 (use (reg/i:SI a0)) "pr105314.c":12:1)
+ (edge-to exit (flags "FALLTHRU"))
+ ) ;; block 5
+ ) ;; insn-chain
+ (crtl
+ (return_rtx
+ (reg/i:SI a0)
+ ) ;; return_rtx
+ ) ;; crtl
+) ;; function "foo"
+}
+
+/* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_store_flag_mask" 1 "ce1" } } */
+/* { dg-final { scan-assembler-not "\\s(?:beq|bne)\\s" } } */
--
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