[tree-ssa] Merge from basic-improvements as of 2002-10-31

[Diego Novillo]

Bootstrapped and tested on x86.  We picked up a few new testsuite
failures that are not related to the tree-ssa code.


Diego.

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Testsuite differences between 20021022/g77.sum.gz and 20021101/g77.sum.gz
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New regressions in 20021101/g77.sum.gz:

Fixed regressions in 20021101/g77.sum.gz:
	 FAIL: g77.dg/7388.f execution test
	 FAIL: g77.dg/7388.f execution test
	 FAIL: g77.dg/7388.f execution test
	 FAIL: g77.dg/7388.f execution test
	 FAIL: g77.dg/7388.f execution test
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Testsuite differences between 20021022/gcc.sum.gz and 20021101/gcc.sum.gz
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New regressions in 20021101/gcc.sum.gz:
	 FAIL: gcc.c-torture/execute/conversion.c execution
	 FAIL: gcc.c-torture/execute/conversion.c execution
	 FAIL: gcc.dg/20020418-2.c (test for excess errors)
	 FAIL: gcc.dg/i386-sse-1.c (test for excess errors)
	 FAIL: gcc.dg/i386-sse-2.c (test for excess errors)
	 FAIL: gcc.dg/i386-sse-3.c (test for excess errors)
	 FAIL: gcc.dg/warn-1.c  (test for warnings
	 FAIL: gcc.dg/warn-1.c  (test for warnings
	 FAIL: gcc.dg/warn-1.c (test for excess errors)

Fixed regressions in 20021101/gcc.sum.gz:
	 FAIL: gcc.dg/sibcall-5.c (test for excess errors)
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Testsuite differences between 20021022/g++.sum.gz and 20021101/g++.sum.gz
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New regressions in 20021101/g++.sum.gz:
	 FAIL: g++.dg/ext/vla1.C  (test for errors
	 FAIL: g++.dg/ext/vla1.C  (test for errors
	 FAIL: g++.dg/ext/vla1.C (test for excess errors)

Fixed regressions in 20021101/g++.sum.gz:
	 FAIL: g++.dg/inherit/override1.C (test for excess errors)
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Testsuite differences between 20021022/libstdc++-v3.sum.gz and 20021101/libstdc++-v3.sum.gz
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New regressions in 20021101/libstdc++-v3.sum.gz:

Fixed regressions in 20021101/libstdc++-v3.sum.gz:
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Testsuite differences between 20021022/objc.sum.gz and 20021101/objc.sum.gz
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New regressions in 20021101/objc.sum.gz:

Fixed regressions in 20021101/objc.sum.gz:
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