[committed] Fix assembly scan for RISC-V VLS tests

Surya's IRA patch from June slightly improves the code we generate for the
vls/calling-conventions tests on RISC-V.  Specifically it removes an
unnecessary move from the instruction stream.  This (of course) broke those
tests:

> Running /home/jlaw/test/gcc/gcc/testsuite/gcc.target/riscv/rvv/rvv.exp ...
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-1.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-2.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-3.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-4.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-5.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-6.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3
> FAIL: gcc.target/riscv/rvv/autovec/vls/calling-convention-7.c -O3 -ftree-vectorize -mrvv-vector-bits=scalable  scan-assembler-times mv\\s+s0,a0\\s+call\\s+memset\\s+mv\\s+a0,s0 3

This patch does the natural adjustment of those tests by dropping the moves
from the scan.

gcc/testsuite
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-1.c: Update
	expected output.
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-2.c: Likewise.
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-3.c: Likewise.
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-4.c: Likewise.
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-5.c: Likewise.
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-6.c: Likewise.
	* gcc.target/riscv/rvv/autovec/vls/calling-convention-7.c: Likewise.

7 files changed, 7 insertions, 7 deletions

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-1.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-1.c
index 60c838e..82039f5 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-1.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-1.c
@@ -145,7 +145,7 @@ DEF_RET1_ARG9 (v4096qi)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 9 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1qi tests: return value (lbu) and function prologue (sb)
 // 1 lbu per test, argnum sb's when args > 1
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-2.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-2.c
index b9922a6..af52b70 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-2.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-2.c
@@ -135,7 +135,7 @@ DEF_RET1_ARG9 (v2048hi)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 8 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1hi tests: return value (lhu) and function prologue (sh)
 // 1 lhu per test, argnum sh's when args > 1
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-3.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-3.c
index 989d45d..01c5a1a 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-3.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-3.c
@@ -125,7 +125,7 @@ DEF_RET1_ARG9 (v1024si)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 7 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1si tests: return value (lw) and function prologue (sw)
 // 1 lw per test, argnum sw's when args > 1
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-4.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-4.c
index b8bb293..2c01aa8 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-4.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-4.c
@@ -115,7 +115,7 @@ DEF_RET1_ARG9 (v512di)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 6 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1di and v2di tests: return value (ld) and function prologue (sd)
 //   - 1 ld per v1di and 2 ld per v2di with args > 1
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-5.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-5.c
index f0357d3..98d6d4a 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-5.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-5.c
@@ -135,7 +135,7 @@ DEF_RET1_ARG9 (v2048hf)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 8 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1hf tests: return value (lhu) and function prologue (sh)
 // 1 lhu per test, argnum sh's when args > 1
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-6.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-6.c
index edf6539..5f59f00 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-6.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-6.c
@@ -125,7 +125,7 @@ DEF_RET1_ARG9 (v1024sf)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 7 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1sf tests: return value (lw) and function prologue (sw)
 // 1 lw per test, argnum sw's when args > 1
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-7.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-7.c
index e001a73..1d427fd 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-7.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls/calling-convention-7.c
@@ -115,7 +115,7 @@ DEF_RET1_ARG9 (v512df)
 
 // RET1_ARG0 tests
 /* { dg-final { scan-assembler-times {li\s+a[0-1],\s*0} 6 } } */
-/* { dg-final { scan-assembler-times {mv\s+s0,a0\s+call\s+memset\s+mv\s+a0,s0} 3 } } */
+/* { dg-final { scan-assembler-times {call\s+memset} 3 } } */
 
 // v1df and v2df tests: return value (ld) and function prologue (sd)
 //   - 1 ld per v1df and 2 ld per v2df with args > 1