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Make instcombine promote inline asm calls to 'nounwind'

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calls.  Remove special casing of inline asm from the
inliner.  There is a potential problem: the verifier
rejects invokes of inline asm (not sure why).  If an
asm call is not marked "nounwind" in some .ll, and
instcombine is not run, but the inliner is run, then
an illegal module will be created.  This is bad but
I'm not sure what the best approach is.  I'm tempted
to remove the check in the verifier...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45073 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2007-12-16 15:51:49 +00:00
parent 2c6fd8c7ce
commit ece2c04d53
7 changed files with 35 additions and 4 deletions
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3
test/CFrontend/2007-12-16-AsmNoUnwind.c Normal file
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@@ -0,0 +1,3 @@
// RUN: %llvmgcc %s -S -o - | grep nounwind
void bar() { asm (""); }