[gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] RISC-V: Make xtheadcondmov-indirect tests robust against instruction reordering

[Jeff Law <law@gcc.gnu.org>]

https://gcc.gnu.org/g:e6a08dab34df3451b509ab5f210f7440e87200ac

commit e6a08dab34df3451b509ab5f210f7440e87200ac
Author: Christoph Müllner <christoph.muellner@vrull.eu>
Date:   Tue Oct 10 00:40:35 2023 +0200

    RISC-V: Make xtheadcondmov-indirect tests robust against instruction reordering
    
    Fixes: c1bc7513b1d7 ("RISC-V: const: hide mvconst splitter from IRA")
    
    A recent change broke the xtheadcondmov-indirect tests, because the order of
    emitted instructions changed. Since the test is too strict when testing for
    a fixed instruction order, let's change the tests to simply count instruction,
    like it is done for similar tests.
    
    Reported-by: Patrick O'Neill <patrick@rivosinc.com>
    Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/riscv/xtheadcondmov-indirect.c: Make robust against
            instruction reordering.
    
    (cherry picked from commit d8c3ace8985cf9b45f7414ce7398bb1274951db9)

Diff:
---
 .../gcc.target/riscv/xtheadcondmov-indirect.c      | 89 +++++++---------------
 1 file changed, 29 insertions(+), 60 deletions(-)

diff --git a/gcc/testsuite/gcc.target/riscv/xtheadcondmov-indirect.c b/gcc/testsuite/gcc.target/riscv/xtheadcondmov-indirect.c
index c3253ba5239..427c9c1a41e 100644
--- a/gcc/testsuite/gcc.target/riscv/xtheadcondmov-indirect.c
+++ b/gcc/testsuite/gcc.target/riscv/xtheadcondmov-indirect.c
@@ -1,16 +1,11 @@
 /* { dg-do compile } */
-/* { dg-options "-march=rv32gc_xtheadcondmov -fno-sched-pressure" { target { rv32 } } } */
-/* { dg-options "-march=rv64gc_xtheadcondmov -fno-sched-pressure" { target { rv64 } } } */
+/* { dg-options "-march=rv32gc_xtheadcondmov" { target { rv32 } } } */
+/* { dg-options "-march=rv64gc_xtheadcondmov" { target { rv64 } } } */
 /* { dg-skip-if "" { *-*-* } {"-O0" "-Os" "-Og" "-Oz" "-flto" } } */
-/* { dg-final { check-function-bodies "**" "" } } */
 
-/*
-** ConEmv_imm_imm_reg:
-**	addi	a[0-9]+,a[0-9]+,-1000
-**	li	a[0-9]+,10
-**	th\.mvnez	a[0-9]+,a[0-9]+,a[0-9]+
-**	ret
-*/
+/* addi aX, aX, -1000
+   li aX, 10
+   th.mvnez aX, aX, aX  */
 int ConEmv_imm_imm_reg(int x, int y)
 {
   if (x == 1000)
@@ -18,13 +13,8 @@ int ConEmv_imm_imm_reg(int x, int y)
   return y;
 }
 
-/*
-** ConEmv_imm_reg_reg:
-**	addi	a[0-9]+,a[0-9]+,-1000
-**	th.mveqz	a[0-9]+,a[0-9]+,a[0-9]+
-**	mv	a[0-9]+,a[0-9]+
-**	ret
-*/
+/* addi	aX, aX, -1000
+   th.mveqz aX, aX, aX  */
 int ConEmv_imm_reg_reg(int x, int y, int z)
 {
   if (x == 1000)
@@ -32,13 +22,9 @@ int ConEmv_imm_reg_reg(int x, int y, int z)
   return z;
 }
 
-/*
-** ConEmv_reg_imm_reg:
-**	sub	a[0-9]+,a[0-9]+,a[0-9]+
-**	li	a[0-9]+,10
-**	th.mvnez	a[0-9]+,a[0-9]+,a[0-9]+
-**	ret
-*/
+/* sub aX, aX, aX
+   li aX, 10
+   th.mvnez aX, aX, aX  */
 int ConEmv_reg_imm_reg(int x, int y, int z)
 {
   if (x == y)
@@ -46,13 +32,8 @@ int ConEmv_reg_imm_reg(int x, int y, int z)
   return z;
 }
 
-/*
-** ConEmv_reg_reg_reg:
-**	sub	a[0-9]+,a[0-9]+,a[0-9]+
-**	th.mveqz	a[0-9]+,a[0-9]+,a[0-9]+
-**	mv	a[0-9]+,a[0-9]+
-**	ret
-*/
+/* sub aX, aX, aX
+   th.mveqz aX, aX, aX  */
 int ConEmv_reg_reg_reg(int x, int y, int z, int n)
 {
   if (x == y)
@@ -60,14 +41,10 @@ int ConEmv_reg_reg_reg(int x, int y, int z, int n)
   return n;
 }
 
-/*
-** ConNmv_imm_imm_reg:
-**	addi	a[0-9]+,a[0-9]+,-1000+
-**	li	a[0-9]+,9998336+
-**	addi	a[0-9]+,a[0-9]+,1664+
-**	th.mveqz	a[0-9]+,a[0-9]+,a[0-9]+
-**	ret
-*/
+/* addi aX, aX, -1000
+   li aX, 9998336
+   addi aX, aX, 1664
+   th.mveqz aX, aX, aX  */
 int ConNmv_imm_imm_reg(int x, int y)
 {
   if (x != 1000)
@@ -75,13 +52,8 @@ int ConNmv_imm_imm_reg(int x, int y)
   return y;
 }
 
-/*
-**ConNmv_imm_reg_reg:
-**	addi	a[0-9]+,a[0-9]+,-1000+
-**	th.mvnez	a[0-9]+,a[0-9]+,a[0-9]+
-**	mv	a[0-9]+,a[0-9]+
-**	ret
-*/
+/* addi aX, aX, 1000
+   th.mvnez aX, aX, aX  */
 int ConNmv_imm_reg_reg(int x, int y, int z)
 {
   if (x != 1000)
@@ -89,13 +61,9 @@ int ConNmv_imm_reg_reg(int x, int y, int z)
   return z;
 }
 
-/*
-**ConNmv_reg_imm_reg:
-**	sub	a[0-9]+,a[0-9]+,a[0-9]+
-**	li	a[0-9]+,10+
-**	th.mveqz	a[0-9]+,a[0-9]+,a[0-9]+
-**	ret
-*/
+/* sub aX, aX, aX
+   li aX, 10
+   th.mveqz aX, aX, aX  */
 int ConNmv_reg_imm_reg(int x, int y, int z)
 {
   if (x != y)
@@ -103,16 +71,17 @@ int ConNmv_reg_imm_reg(int x, int y, int z)
   return z;
 }
 
-/*
-**ConNmv_reg_reg_reg:
-**	sub	a[0-9]+,a[0-9]+,a[0-9]+
-**	th.mvnez	a[0-9]+,a[0-9]+,a[0-9]+
-**	mv	a[0-9]+,a[0-9]+
-**	ret
-*/
+/* sub aX, aX, aX
+   th.mvnez aX, aX, aX  */
 int ConNmv_reg_reg_reg(int x, int y, int z, int n)
 {
   if (x != y)
     return z;
   return n;
 }
+
+/* { dg-final { scan-assembler-times "addi\t" 5 } } */
+/* { dg-final { scan-assembler-times "li\t" 4 } } */
+/* { dg-final { scan-assembler-times "sub\t" 4 } } */
+/* { dg-final { scan-assembler-times "th.mveqz\t" 4 } } */
+/* { dg-final { scan-assembler-times "th.mvnez\t" 4 } } */