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These tests have always been a bit flaky, but I noticed that they were often running with completely unsuitable options (eg expecting tailcalls to happen on Thumb1). So I took the opportunity while fixing that to improve their overall stability by removing most of the code that was trying to push up the register pressure and replacing it with a simple asm statement. Doing this has the added advantage that it removes the issues that -mpure-code can cause since the test no-longer needs to access global variables. gcc/testsuite/ChangeLog: * gcc.target/arm/pr45701-1.c: Rework test to avoid global variables. Require arm_arch_v7a_thumb as the effective target. * gcc.target/arm/pr45701-2.c: Likewise. * gcc.target/arm/pr45701-3.c: Likewise.
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