mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
67 lines
3.9 KiB
LLVM
67 lines
3.9 KiB
LLVM
; RUN: llc -O3 < %s | FileCheck %s
|
|
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"
|
|
target triple = "thumbv7-apple-darwin10"
|
|
|
|
; This test should not produce any spills, even when tail duplication creates lots of phi nodes.
|
|
; CHECK-NOT: push
|
|
; CHECK-NOT: pop
|
|
; CHECK: bx lr
|
|
|
|
@codetable.2928 = internal constant [5 x i8*] [i8* blockaddress(@interpret_threaded, %RETURN), i8* blockaddress(@interpret_threaded, %INCREMENT), i8* blockaddress(@interpret_threaded, %DECREMENT), i8* blockaddress(@interpret_threaded, %DOUBLE), i8* blockaddress(@interpret_threaded, %SWAPWORD)] ; <[5 x i8*]*> [#uses=5]
|
|
@llvm.used = appending global [1 x i8*] [i8* bitcast (i32 (i8*)* @interpret_threaded to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
|
|
|
|
define i32 @interpret_threaded(i8* nocapture %opcodes) nounwind readonly optsize {
|
|
entry:
|
|
%0 = load i8* %opcodes, align 1 ; <i8> [#uses=1]
|
|
%1 = zext i8 %0 to i32 ; <i32> [#uses=1]
|
|
%2 = getelementptr inbounds [5 x i8*]* @codetable.2928, i32 0, i32 %1 ; <i8**> [#uses=1]
|
|
br label %bb
|
|
|
|
bb: ; preds = %bb.backedge, %entry
|
|
%indvar = phi i32 [ %phitmp, %bb.backedge ], [ 1, %entry ] ; <i32> [#uses=2]
|
|
%gotovar.22.0.in = phi i8** [ %gotovar.22.0.in.be, %bb.backedge ], [ %2, %entry ] ; <i8**> [#uses=1]
|
|
%result.0 = phi i32 [ %result.0.be, %bb.backedge ], [ 0, %entry ] ; <i32> [#uses=6]
|
|
%opcodes_addr.0 = getelementptr i8* %opcodes, i32 %indvar ; <i8*> [#uses=4]
|
|
%gotovar.22.0 = load i8** %gotovar.22.0.in, align 4 ; <i8*> [#uses=1]
|
|
indirectbr i8* %gotovar.22.0, [label %RETURN, label %INCREMENT, label %DECREMENT, label %DOUBLE, label %SWAPWORD]
|
|
|
|
RETURN: ; preds = %bb
|
|
ret i32 %result.0
|
|
|
|
INCREMENT: ; preds = %bb
|
|
%3 = add nsw i32 %result.0, 1 ; <i32> [#uses=1]
|
|
%4 = load i8* %opcodes_addr.0, align 1 ; <i8> [#uses=1]
|
|
%5 = zext i8 %4 to i32 ; <i32> [#uses=1]
|
|
%6 = getelementptr inbounds [5 x i8*]* @codetable.2928, i32 0, i32 %5 ; <i8**> [#uses=1]
|
|
br label %bb.backedge
|
|
|
|
bb.backedge: ; preds = %SWAPWORD, %DOUBLE, %DECREMENT, %INCREMENT
|
|
%gotovar.22.0.in.be = phi i8** [ %20, %SWAPWORD ], [ %14, %DOUBLE ], [ %10, %DECREMENT ], [ %6, %INCREMENT ] ; <i8**> [#uses=1]
|
|
%result.0.be = phi i32 [ %17, %SWAPWORD ], [ %11, %DOUBLE ], [ %7, %DECREMENT ], [ %3, %INCREMENT ] ; <i32> [#uses=1]
|
|
%phitmp = add i32 %indvar, 1 ; <i32> [#uses=1]
|
|
br label %bb
|
|
|
|
DECREMENT: ; preds = %bb
|
|
%7 = add i32 %result.0, -1 ; <i32> [#uses=1]
|
|
%8 = load i8* %opcodes_addr.0, align 1 ; <i8> [#uses=1]
|
|
%9 = zext i8 %8 to i32 ; <i32> [#uses=1]
|
|
%10 = getelementptr inbounds [5 x i8*]* @codetable.2928, i32 0, i32 %9 ; <i8**> [#uses=1]
|
|
br label %bb.backedge
|
|
|
|
DOUBLE: ; preds = %bb
|
|
%11 = shl i32 %result.0, 1 ; <i32> [#uses=1]
|
|
%12 = load i8* %opcodes_addr.0, align 1 ; <i8> [#uses=1]
|
|
%13 = zext i8 %12 to i32 ; <i32> [#uses=1]
|
|
%14 = getelementptr inbounds [5 x i8*]* @codetable.2928, i32 0, i32 %13 ; <i8**> [#uses=1]
|
|
br label %bb.backedge
|
|
|
|
SWAPWORD: ; preds = %bb
|
|
%15 = shl i32 %result.0, 16 ; <i32> [#uses=1]
|
|
%16 = ashr i32 %result.0, 16 ; <i32> [#uses=1]
|
|
%17 = or i32 %15, %16 ; <i32> [#uses=1]
|
|
%18 = load i8* %opcodes_addr.0, align 1 ; <i8> [#uses=1]
|
|
%19 = zext i8 %18 to i32 ; <i32> [#uses=1]
|
|
%20 = getelementptr inbounds [5 x i8*]* @codetable.2928, i32 0, i32 %19 ; <i8**> [#uses=1]
|
|
br label %bb.backedge
|
|
}
|