X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FExecutionEngine%2F2003-08-23-RegisterAllocatePhysReg.ll;h=25a24f5e5c415e791cfd065a50828916ac625946;hb=ae18bd4246da4d2ac9494bbaeadd40abfa533c83;hp=fa7df62913807c0509f9b15a80e198b2b9bca5cb;hpb=ae1c1ffacd160666df0daafb5dcc62eb33dfbf19;p=oota-llvm.git diff --git a/test/ExecutionEngine/2003-08-23-RegisterAllocatePhysReg.ll b/test/ExecutionEngine/2003-08-23-RegisterAllocatePhysReg.ll index fa7df629138..25a24f5e5c4 100644 --- a/test/ExecutionEngine/2003-08-23-RegisterAllocatePhysReg.ll +++ b/test/ExecutionEngine/2003-08-23-RegisterAllocatePhysReg.ll @@ -1,30 +1,35 @@ +; RUN: llvm-as %s -f -o %t.bc +; RUN: lli %t.bc > /dev/null + ; This testcase exposes a bug in the local register allocator where it runs out ; of registers (due to too many overlapping live ranges), but then attempts to ; use the ESP register (which is not allocatable) to hold a value. -int %main(uint %A) { - %Ap2 = alloca uint, uint %A ; ESP gets used again... - %B = add uint %A, 1 ; Produce lots of overlapping live ranges - %C = add uint %A, 2 - %D = add uint %A, 3 - %E = add uint %A, 4 - %F = add uint %A, 5 - %G = add uint %A, 6 - %H = add uint %A, 7 - %I = add uint %A, 8 - %J = add uint %A, 9 - %K = add uint %A, 10 - - store uint %A, uint *%Ap2 ; Uses of all of the values - store uint %B, uint *%Ap2 - store uint %C, uint *%Ap2 - store uint %D, uint *%Ap2 - store uint %E, uint *%Ap2 - store uint %F, uint *%Ap2 - store uint %G, uint *%Ap2 - store uint %H, uint *%Ap2 - store uint %I, uint *%Ap2 - store uint %J, uint *%Ap2 - store uint %K, uint *%Ap2 - ret int 0 +define i32 @main(i32 %A) { + ; ESP gets used again... + %Ap2 = alloca i32, i32 %A ; [#uses=11] + ; Produce lots of overlapping live ranges + %B = add i32 %A, 1 ; [#uses=1] + %C = add i32 %A, 2 ; [#uses=1] + %D = add i32 %A, 3 ; [#uses=1] + %E = add i32 %A, 4 ; [#uses=1] + %F = add i32 %A, 5 ; [#uses=1] + %G = add i32 %A, 6 ; [#uses=1] + %H = add i32 %A, 7 ; [#uses=1] + %I = add i32 %A, 8 ; [#uses=1] + %J = add i32 %A, 9 ; [#uses=1] + %K = add i32 %A, 10 ; [#uses=1] + ; Uses of all of the values + store i32 %A, i32* %Ap2 + store i32 %B, i32* %Ap2 + store i32 %C, i32* %Ap2 + store i32 %D, i32* %Ap2 + store i32 %E, i32* %Ap2 + store i32 %F, i32* %Ap2 + store i32 %G, i32* %Ap2 + store i32 %H, i32* %Ap2 + store i32 %I, i32* %Ap2 + store i32 %J, i32* %Ap2 + store i32 %K, i32* %Ap2 + ret i32 0 }