llvm/test/Transforms/Inline/2007-04-15-InlineEH.ll
Duncan Sands ece2c04d53 Make instcombine promote inline asm calls to 'nounwind'
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
2007-12-16 15:51:49 +00:00

50 lines
1.6 KiB
LLVM

; RUN: llvm-as < %s | opt -inline -disable-output
; PR1335
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "i686-pc-linux-gnu"
%struct.gnat__strings__string_access = type { i8*, %struct.string___XUB* }
%struct.string___XUB = type { i32, i32 }
define void @bc__support__high_resolution_time__clock() {
entry:
call void asm "rdtsc\0A\09movl %eax, $0\0A\09movl %edx, $1", "=*imr,=*imr,~{dirflag},~{fpsr},~{flags},~{dx},~{ax}"( i32* null, i32* null ) nounwind
unreachable
}
define fastcc void @bc__support__high_resolution_time__initialize_clock_rate() {
entry:
invoke void @gnat__os_lib__getenv( %struct.gnat__strings__string_access* null )
to label %invcont unwind label %cleanup144
invcont: ; preds = %entry
invoke void @ada__calendar__delays__delay_for( )
to label %invcont64 unwind label %cleanup144
invcont64: ; preds = %invcont
invoke void @ada__calendar__clock( )
to label %invcont65 unwind label %cleanup144
invcont65: ; preds = %invcont64
invoke void @bc__support__high_resolution_time__clock( )
to label %invcont67 unwind label %cleanup144
invcont67: ; preds = %invcont65
ret void
cleanup144: ; preds = %invcont65, %invcont64, %invcont, %entry
unwind
}
declare void @gnat__os_lib__getenv(%struct.gnat__strings__string_access*)
declare void @ada__calendar__delays__delay_for()
declare void @ada__calendar__clock()
define void @bc__support__high_resolution_time___elabb() {
entry:
call fastcc void @bc__support__high_resolution_time__initialize_clock_rate( )
ret void
}