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Chris Lattner
e7f96c515e
Substantially improve the code generated by non-folded setcc instructions.
In particular, instead of compiling this: bool %test(int %A, int %B) { %C = setlt int %A, %B ret bool %C } to this: test: save %sp, -96, %sp subcc %i0, %i1, %g0 bl .LBBtest_1 ! nop ba .LBBtest_2 ! nop .LBBtest_1: ! or %g0, 1, %i0 ba .LBBtest_3 ! nop .LBBtest_2: ! or %g0, 0, %i0 ba .LBBtest_3 ! nop .LBBtest_3: ! restore %g0, %g0, %g0 retl nop We now compile it to this: test: save %sp, -96, %sp subcc %i0, %i1, %g0 or %g0, 1, %i0 bl .LBBtest_2 ! nop .LBBtest_1: ! or %g0, %g0, %i0 .LBBtest_2: ! restore %g0, %g0, %g0 retl nop git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19213 91177308-0d34-0410-b5e6-96231b3b80d8
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