From: Richard Sandiford <richard.sandiford@arm.com>
Date: Wed, 2 Oct 2019 13:11:45 +0000 (+0000)
Subject: Fix MIPS call-clobbered-*.c tests
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4bdb8c3dca3b518a6ca8dbaf60068f7e897ccc0e;p=gcc.git

Fix MIPS call-clobbered-*.c tests

Jeff pointed out that gcc.target/mips/call-clobbered-4.c started
failing after the function-abi series.  This is because IRA used
to treat partly call-clobbered registers as hard conflicts and
so wouldn't consider them for -fcaller-saves.  Now that we treat
call clobbers the same way regardless of where they come from,
we can use $f21 as a caller-save register.  This in turn means
that -Os is no longer a special case in call-clobbered-3.c.

(The new code is the same size as the old code.)

2019-10-02  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* gcc.target/mips/call-clobbered-3.c: Remove skip for -Os.
	* gcc.target/mips/call-clobbered-4.c: Delete.

From-SVN: r276456
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 86b8f73f895..9ca45cb9b87 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-10-02  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* gcc.target/mips/call-clobbered-3.c: Remove skip for -Os.
+	* gcc.target/mips/call-clobbered-4.c: Delete.
+
 2019-10-02  Tobias Burnus  <tobias@codesourcery.com>
 
 	* gfortran.dg/gomp/is_device_ptr-1.f90: New.
diff --git a/gcc/testsuite/gcc.target/mips/call-clobbered-3.c b/gcc/testsuite/gcc.target/mips/call-clobbered-3.c
index fce4d991245..3a9e8d883fc 100644
--- a/gcc/testsuite/gcc.target/mips/call-clobbered-3.c
+++ b/gcc/testsuite/gcc.target/mips/call-clobbered-3.c
@@ -1,7 +1,5 @@
 /* Check that we handle call-clobbered FPRs correctly.  */
 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
-/* Refer to call-clobbered-4.c to see the expected output from -Os builds.  */
-/* { dg-skip-if "uses callee-saved GPR" { *-*-* } { "-Os" } { "" } } */
 /* { dg-options "-mabi=32 -modd-spreg -mfpxx -ffixed-f0 -ffixed-f1 -ffixed-f2 -ffixed-f3 -ffixed-f4 -ffixed-f5 -ffixed-f6 -ffixed-f7 -ffixed-f8 -ffixed-f9 -ffixed-f10 -ffixed-f11 -ffixed-f12 -ffixed-f13 -ffixed-f14 -ffixed-f15 -ffixed-f16 -ffixed-f17 -ffixed-f18 -ffixed-f19 -ffixed-f20 -ffixed-f22 -ffixed-f24 -ffixed-f26 -ffixed-f28 -ffixed-f30" } */
 
 void bar (void);
diff --git a/gcc/testsuite/gcc.target/mips/call-clobbered-4.c b/gcc/testsuite/gcc.target/mips/call-clobbered-4.c
deleted file mode 100644
index 51498b8fa28..00000000000
--- a/gcc/testsuite/gcc.target/mips/call-clobbered-4.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Check that we handle call-clobbered FPRs correctly.
-   This test differs from call-clobbered-3.c because when optimising for size
-   a callee-saved GPR is used for 'b' to cross the call.  */
-/* { dg-skip-if "code quality test" { *-*-* } { "*" } { "-Os" } } */
-/* { dg-options "-mabi=32 -modd-spreg -mfpxx -ffixed-f0 -ffixed-f1 -ffixed-f2 -ffixed-f3 -ffixed-f4 -ffixed-f5 -ffixed-f6 -ffixed-f7 -ffixed-f8 -ffixed-f9 -ffixed-f10 -ffixed-f11 -ffixed-f12 -ffixed-f13 -ffixed-f14 -ffixed-f15 -ffixed-f16 -ffixed-f17 -ffixed-f18 -ffixed-f19 -ffixed-f20 -ffixed-f22 -ffixed-f24 -ffixed-f26 -ffixed-f28 -ffixed-f30" } */
-
-void bar (void);
-float a;
-float
-foo ()
-{
-  float b = a + 1.0f;
-  bar();
-  return b;
-}
-/* { dg-final { scan-assembler-times "lwc1" 4 } } */
-/* { dg-final { scan-assembler-times "swc1" 2 } } */
-/* { dg-final { scan-assembler-times "mtc" 1 } } */
-/* { dg-final { scan-assembler-times "mfc" 1 } } */
-/* { dg-final { scan-assembler-not "mthc" } } */
-/* { dg-final { scan-assembler-not "mfhc" } } */
-/* { dg-final { scan-assembler-not "ldc1" } } */
-/* { dg-final { scan-assembler-not "sdc1" } } */