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accel/tcg: Remove special case for GCC < 4.6

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Since commit efc6c070aca ("configure: Add a test for the
minimum compiler version") the minimum compiler version
required for GCC is 4.8.

We can safely remove the special case for GCC 4.6 introduced
in commit 0448f5f8b81 ("cpu-exec: Fix compiler warning
(-Werror=clobbered)").
No change for Clang as we don't know.

Backports 19a84318c674c157f1b04c5c99595379f8ac8bb3
This commit is contained in:
Philippe Mathieu-Daudé 2021-03-03 19:14:50 -05:00 committed by Lioncash
parent f526d4455c
commit 4a0f9846b2
1 changed files with 1 additions and 1 deletions
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2
qemu/accel/tcg/cpu-exec.c
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@ -543,7 +543,7 @@ int cpu_exec(struct uc_struct *uc, CPUState *cpu)
/* prepare setjmp context for exception handling */
if (sigsetjmp(cpu->jmp_env, 0) != 0) {
#if defined(__clang__) || !QEMU_GNUC_PREREQ(4, 6)
#if defined(__clang__)
/* Some compilers wrongly smash all local variables after
* siglongjmp. There were bug reports for gcc 4.5.0 and clang.
* Reload essential local variables here for those compilers.