Compile zero-scratch-regs-[29|30].c with -mtune-ctrl=^use_ffreep to disable using freep instruction instead of fstp to avoid:
FAIL: gcc.target/i386/zero-scratch-regs-29.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 7 FAIL: gcc.target/i386/zero-scratch-regs-29.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 7 FAIL: gcc.target/i386/zero-scratch-regs-30.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 6 FAIL: gcc.target/i386/zero-scratch-regs-30.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 8 when TARGET_USE_FFREEP is enabled by default. PR testsuite/126923 * gcc.target/i386/zero-scratch-regs-29.c (dg-options): Add -mtune-ctrl=^use_ffreep. * gcc.target/i386/zero-scratch-regs-30.c (dg-options): Likewise. -- H.J.
From 2bff11745fb8b8e3761051f304419b079f012fa2 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" <[email protected]> Date: Wed, 19 Aug 2026 05:55:27 +0800 Subject: [PATCH] zero-scratch-regs-[29|30].c: Disable TARGET_USE_FFREEP Compile zero-scratch-regs-[29|30].c with -mtune-ctrl=^use_ffreep to disable using freep instruction instead of fstp to avoid: FAIL: gcc.target/i386/zero-scratch-regs-29.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 7 FAIL: gcc.target/i386/zero-scratch-regs-29.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 7 FAIL: gcc.target/i386/zero-scratch-regs-30.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 6 FAIL: gcc.target/i386/zero-scratch-regs-30.c scan-assembler-times fstp[ \t]+%st\ \(0\\) 8 when TARGET_USE_FFREEP is enabled by default. PR testsuite/126923 * gcc.target/i386/zero-scratch-regs-29.c (dg-options): Add -mtune-ctrl=^use_ffreep. * gcc.target/i386/zero-scratch-regs-30.c (dg-options): Likewise. Signed-off-by: H.J. Lu <[email protected]> --- gcc/testsuite/gcc.target/i386/zero-scratch-regs-29.c | 2 +- gcc/testsuite/gcc.target/i386/zero-scratch-regs-30.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/gcc/testsuite/gcc.target/i386/zero-scratch-regs-29.c b/gcc/testsuite/gcc.target/i386/zero-scratch-regs-29.c index 62706454f6c..636753e2120 100644 --- a/gcc/testsuite/gcc.target/i386/zero-scratch-regs-29.c +++ b/gcc/testsuite/gcc.target/i386/zero-scratch-regs-29.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fzero-call-used-regs=all" } */ +/* { dg-options "-O2 -fzero-call-used-regs=all -mtune-ctrl=^use_ffreep" } */ long double ret_x87 (void) { diff --git a/gcc/testsuite/gcc.target/i386/zero-scratch-regs-30.c b/gcc/testsuite/gcc.target/i386/zero-scratch-regs-30.c index c4e99303d22..e67baafa643 100644 --- a/gcc/testsuite/gcc.target/i386/zero-scratch-regs-30.c +++ b/gcc/testsuite/gcc.target/i386/zero-scratch-regs-30.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fzero-call-used-regs=all" } */ +/* { dg-options "-O2 -fzero-call-used-regs=all -mtune-ctrl=^use_ffreep" } */ _Complex long double ret_x87_cplx (void) { -- 2.55.0
