[41/44] RISC-V/testsuite: Add branched cases for FP NE cond-move operations

Message ID alpine.DEB.2.20.2311190156200.5892@tpp.orcam.me.uk
State Unresolved
Headers
Series RISC-V: Various if-conversion fixes and improvements |

Checks

Context Check Description
snail/gcc-patch-check warning Git am fail log

Commit Message

Maciej W. Rozycki Nov. 19, 2023, 5:43 a.m. UTC
  Verify, for generic, Ventana and Zicond targets and the floating-point 
NE conditional-move operation, that if-conversion does *not* trigger at 
the respective sufficiently low `-mbranch-cost=' settings that make 
original branched code sequences cheaper than their branchless 
equivalents if-conversion would emit.

	gcc/testsuite/
	* gcc.target/riscv/movdibfeq-ventana.c: New test.
	* gcc.target/riscv/movdibfeq-zicond.c: New test.
	* gcc.target/riscv/movdibfeq.c: New test.
	* gcc.target/riscv/movsibfeq-ventana.c: New test.
	* gcc.target/riscv/movsibfeq-zicond.c: New test.
	* gcc.target/riscv/movsibfeq.c: New test.
---
 gcc/testsuite/gcc.target/riscv/movdibfeq-ventana.c |   30 +++++++++++++++++++++
 gcc/testsuite/gcc.target/riscv/movdibfeq-zicond.c  |   30 +++++++++++++++++++++
 gcc/testsuite/gcc.target/riscv/movdibfeq.c         |   28 +++++++++++++++++++
 gcc/testsuite/gcc.target/riscv/movsibfeq-ventana.c |   30 +++++++++++++++++++++
 gcc/testsuite/gcc.target/riscv/movsibfeq-zicond.c  |   30 +++++++++++++++++++++
 gcc/testsuite/gcc.target/riscv/movsibfeq.c         |   28 +++++++++++++++++++
 6 files changed, 176 insertions(+)

gcc-riscv-test-movccne-branch-generic.diff
  

Patch

Index: gcc/gcc/testsuite/gcc.target/riscv/movdibfeq-ventana.c
===================================================================
--- /dev/null
+++ gcc/gcc/testsuite/gcc.target/riscv/movdibfeq-ventana.c
@@ -0,0 +1,30 @@ 
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xventanacondops -mtune=rocket -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdifeq (double w, double x, int_t y, int_t z)
+{
+  return w == x ? y : z;
+}
+
+/* Expect branched assembly like:
+
+	feq.d	a4,fa0,fa1
+	mv	a5,a0
+	mv	a0,a1
+	beq	a4,zero,.L2
+	mv	a0,a5
+.L2:
+ */
+
+/* { dg-final { scan-rtl-dump-not "Conversion succeeded on pass \[0-9\]+\\." "ce1" } } */
+/* { dg-final { scan-rtl-dump-not "if-conversion succeeded through" "ce1" } } */
+/* { dg-final { scan-assembler-times "\\sfeq\\.d\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:beq|bne)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\svt\\.maskc\\s" } } */
+/* { dg-final { scan-assembler-not "\\svt\\.maskcn\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
Index: gcc/gcc/testsuite/gcc.target/riscv/movdibfeq-zicond.c
===================================================================
--- /dev/null
+++ gcc/gcc/testsuite/gcc.target/riscv/movdibfeq-zicond.c
@@ -0,0 +1,30 @@ 
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_zicond -mtune=rocket -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdifeq (double w, double x, int_t y, int_t z)
+{
+  return w == x ? y : z;
+}
+
+/* Expect branched assembly like:
+
+	feq.d	a4,fa0,fa1
+	mv	a5,a0
+	mv	a0,a1
+	beq	a4,zero,.L2
+	mv	a0,a5
+.L2:
+ */
+
+/* { dg-final { scan-rtl-dump-not "Conversion succeeded on pass \[0-9\]+\\." "ce1" } } */
+/* { dg-final { scan-rtl-dump-not "if-conversion succeeded through" "ce1" } } */
+/* { dg-final { scan-assembler-times "\\sfeq\\.d\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:beq|bne)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\sczero\\.eqz\\s" } } */
+/* { dg-final { scan-assembler-not "\\sczero\\.nez\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
Index: gcc/gcc/testsuite/gcc.target/riscv/movdibfeq.c
===================================================================
--- /dev/null
+++ gcc/gcc/testsuite/gcc.target/riscv/movdibfeq.c
@@ -0,0 +1,28 @@ 
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc -mtune=sifive-5-series -mbranch-cost=4 -mmovcc -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (DI))) int_t;
+
+int_t
+movdifeq (double w, double x, int_t y, int_t z)
+{
+  return w == x ? y : z;
+}
+
+/* Expect branched assembly like:
+
+	feq.d	a4,fa0,fa1
+	mv	a5,a0
+	mv	a0,a1
+	beq	a4,zero,.L2
+	mv	a0,a5
+.L2:
+ */
+
+/* { dg-final { scan-rtl-dump-not "Conversion succeeded on pass \[0-9\]+\\." "ce1" } } */
+/* { dg-final { scan-rtl-dump-not "if-conversion succeeded through" "ce1" } } */
+/* { dg-final { scan-assembler-times "\\sfeq\\.d\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:beq|bne)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
Index: gcc/gcc/testsuite/gcc.target/riscv/movsibfeq-ventana.c
===================================================================
--- /dev/null
+++ gcc/gcc/testsuite/gcc.target/riscv/movsibfeq-ventana.c
@@ -0,0 +1,30 @@ 
+/* { dg-do compile } */
+/* { dg-require-effective-target rv64 } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_xventanacondops -mtune=rocket -mbranch-cost=2 -fdump-rtl-ce1" } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsifeq (double w, double x, int_t y, int_t z)
+{
+  return w == x ? y : z;
+}
+
+/* Expect branched assembly like:
+
+	feq.d	a4,fa0,fa1
+	mv	a5,a0
+	mv	a0,a1
+	beq	a4,zero,.L2
+	mv	a0,a5
+.L2:
+ */
+
+/* { dg-final { scan-rtl-dump-not "Conversion succeeded on pass \[0-9\]+\\." "ce1" } } */
+/* { dg-final { scan-rtl-dump-not "if-conversion succeeded through" "ce1" } } */
+/* { dg-final { scan-assembler-times "\\sfeq\\.d\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:beq|bne)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\svt\\.maskc\\s" } } */
+/* { dg-final { scan-assembler-not "\\svt\\.maskcn\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
Index: gcc/gcc/testsuite/gcc.target/riscv/movsibfeq-zicond.c
===================================================================
--- /dev/null
+++ gcc/gcc/testsuite/gcc.target/riscv/movsibfeq-zicond.c
@@ -0,0 +1,30 @@ 
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc_zicond -mtune=rocket -mbranch-cost=2 -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_zicond -mtune=rocket -mbranch-cost=2 -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsifeq (double w, double x, int_t y, int_t z)
+{
+  return w == x ? y : z;
+}
+
+/* Expect branched assembly like:
+
+	feq.d	a4,fa0,fa1
+	mv	a5,a0
+	mv	a0,a1
+	beq	a4,zero,.L2
+	mv	a0,a5
+.L2:
+ */
+
+/* { dg-final { scan-rtl-dump-not "Conversion succeeded on pass \[0-9\]+\\." "ce1" } } */
+/* { dg-final { scan-rtl-dump-not "if-conversion succeeded through" "ce1" } } */
+/* { dg-final { scan-assembler-times "\\sfeq\\.d\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:beq|bne)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\sczero\\.eqz\\s" } } */
+/* { dg-final { scan-assembler-not "\\sczero\\.nez\\s" } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */
Index: gcc/gcc/testsuite/gcc.target/riscv/movsibfeq.c
===================================================================
--- /dev/null
+++ gcc/gcc/testsuite/gcc.target/riscv/movsibfeq.c
@@ -0,0 +1,28 @@ 
+/* { dg-do compile } */
+/* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" } } */
+/* { dg-options "-march=rv64gc -mtune=sifive-5-series -mbranch-cost=4 -mmovcc -fdump-rtl-ce1" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc -mtune=sifive-5-series -mbranch-cost=4 -mmovcc -fdump-rtl-ce1" { target { rv32 } } } */
+
+typedef int __attribute__ ((mode (SI))) int_t;
+
+int_t
+movsifeq (double w, double x, int_t y, int_t z)
+{
+  return w == x ? y : z;
+}
+
+/* Expect branched assembly like:
+
+	feq.d	a4,fa0,fa1
+	mv	a5,a0
+	mv	a0,a1
+	beq	a4,zero,.L2
+	mv	a0,a5
+.L2:
+ */
+
+/* { dg-final { scan-rtl-dump-not "Conversion succeeded on pass \[0-9\]+\\." "ce1" } } */
+/* { dg-final { scan-rtl-dump-not "if-conversion succeeded through" "ce1" } } */
+/* { dg-final { scan-assembler-times "\\sfeq\\.d\\s" 1 } } */
+/* { dg-final { scan-assembler-times "\\s(?:beq|bne)\\s" 1 } } */
+/* { dg-final { scan-assembler-not "\\s(?:seqz|snez)\\s" } } */