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llvm-mirror/test/CodeGen/X86/liveness-local-regalloc.ll
Jakob Stoklund Olesen ce0f9aef12 Don't run RAFast in the optimizing regalloc pipeline.
The fast register allocator is not supposed to work in the optimizing
pipeline. It doesn't make sense to compute live intervals, run full copy
coalescing, and then run RAFast.

Fast register allocation in the optimizing pipeline is better done by
RABasic.

llvm-svn: 158242
2012-06-08 23:15:12 +00:00

93 lines
3.2 KiB
LLVM

; RUN: llc < %s -regalloc=fast -optimize-regalloc=0 -verify-machineinstrs -mtriple=x86_64-apple-darwin10
; <rdar://problem/7755473>
; PR12821
%0 = type { i32, i8*, i8*, %1*, i8*, i64, i64, i32, i32, i32, i32, [1024 x i8] }
%1 = type { i8*, i32, i32, i16, i16, %2, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %2, %3*, i32, [3 x i8], [1 x i8], %2, i32, i64 }
%2 = type { i8*, i32 }
%3 = type opaque
declare fastcc i32 @func(%0*, i32, i32) nounwind ssp
define fastcc void @func2(%0* %arg, i32 %arg1) nounwind ssp {
bb:
br label %.exit3
.exit3: ; preds = %.exit3, %bb
switch i32 undef, label %.exit3 [
i32 -1, label %.loopexit
i32 37, label %bb2
]
bb2: ; preds = %bb5, %bb3, %.exit3
br i1 undef, label %bb3, label %bb5
bb3: ; preds = %bb2
switch i32 undef, label %infloop [
i32 125, label %.loopexit
i32 -1, label %bb4
i32 37, label %bb2
]
bb4: ; preds = %bb3
%tmp = add nsw i32 undef, 1 ; <i32> [#uses=1]
br label %.loopexit
bb5: ; preds = %bb2
switch i32 undef, label %infloop1 [
i32 -1, label %.loopexit
i32 37, label %bb2
]
.loopexit: ; preds = %bb5, %bb4, %bb3, %.exit3
%.04 = phi i32 [ %tmp, %bb4 ], [ undef, %bb3 ], [ undef, %.exit3 ], [ undef, %bb5 ] ; <i32> [#uses=2]
br i1 undef, label %bb8, label %bb6
bb6: ; preds = %.loopexit
%tmp7 = tail call fastcc i32 @func(%0* %arg, i32 %.04, i32 undef) nounwind ssp ; <i32> [#uses=0]
ret void
bb8: ; preds = %.loopexit
%tmp9 = sext i32 %.04 to i64 ; <i64> [#uses=1]
%tmp10 = getelementptr inbounds %0* %arg, i64 0, i32 11, i64 %tmp9 ; <i8*> [#uses=1]
store i8 0, i8* %tmp10, align 1
ret void
infloop: ; preds = %infloop, %bb3
br label %infloop
infloop1: ; preds = %infloop1, %bb5
br label %infloop1
}
; RAFast would forget to add a super-register <imp-def> when rewriting:
; %vreg10:sub_32bit<def,read-undef> = COPY %R9D<kill>
; This trips up the machine code verifier.
define void @autogen_SD24657(i8*, i32*, i64*, i32, i64, i8) {
BB:
%A4 = alloca <16 x i16>
%A3 = alloca double
%A2 = alloca <2 x i8>
%A1 = alloca i1
%A = alloca i32
%L = load i8* %0
store i8 -37, i8* %0
%E = extractelement <4 x i64> zeroinitializer, i32 2
%Shuff = shufflevector <4 x i64> zeroinitializer, <4 x i64> zeroinitializer, <4 x i32> <i32 5, i32 7, i32 1, i32 3>
%I = insertelement <2 x i8> <i8 -1, i8 -1>, i8 %5, i32 1
%B = fadd float 0x45CDF5B1C0000000, 0x45CDF5B1C0000000
%FC = uitofp i32 275048 to double
%Sl = select i1 true, <2 x i8> %I, <2 x i8> <i8 -1, i8 -1>
%Cmp = icmp slt i64 0, %E
br label %CF
CF: ; preds = %BB
store i8 %5, i8* %0
store <2 x i8> %I, <2 x i8>* %A2
store i8 %5, i8* %0
store i8 %5, i8* %0
store i8 %5, i8* %0
ret void
}