ad00f3d0b9
Fixed regression due to commit 131709, which disables vararg tail call optimizations on Win64
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llvm-svn: 131740
2011-05-20 17:49:39 +00:00
f4e832b14e
Enables vararg functions that pass all arguments via registers to be optimized into tail-calls when possible.
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llvm-svn: 131560
2011-05-18 19:59:50 +00:00
410ec4aad1
As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias
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(movzx/movsx) because they give more information. Revert that part of the patch.
llvm-svn: 129498
2011-04-14 01:46:37 +00:00
7e07d6fb69
Have the X86 back-end emit the alias instead of what's being aliased. In most
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cases, it's much nicer and more informative reading the alias.
llvm-svn: 129497
2011-04-14 01:11:51 +00:00
ac106273d4
The x86-64 ABI says that a bool is only guaranteed to be sign-extended to a byte
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rather than an int. Thankfully, this only causes LLVM to miss optimizations, not
generate incorrect code.
This just fixes the zext at the return. We still insert an i32 ZextAssert when
reading a function's arguments, but it is followed by a truncate and another i8
ZextAssert so it is not optimized.
llvm-svn: 127766
2011-03-16 22:20:18 +00:00
40a9200357
Rename a test to be more inclusive.
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llvm-svn: 127765
2011-03-16 22:20:12 +00:00
Chad Rosier