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llvm-mirror/test/ExecutionEngine/2003-08-23-RegisterAllocatePhysReg.ll
Eli Bendersky 973d44eb7c Adding a basic ELF dynamic loader and MC-JIT for ELF. Functionality is currently basic and will be enhanced with future patches.
Patch developed by Andy Kaylor and Daniel Malea. Reviewed on llvm-commits.

llvm-svn: 148231
2012-01-16 08:56:09 +00:00

36 lines
1.1 KiB
LLVM

; RUN: %lli %s > /dev/null
; XFAIL: arm
; 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.
define i32 @main(i32 %A) {
; ESP gets used again...
%Ap2 = alloca i32, i32 %A ; <i32*> [#uses=11]
; Produce lots of overlapping live ranges
%B = add i32 %A, 1 ; <i32> [#uses=1]
%C = add i32 %A, 2 ; <i32> [#uses=1]
%D = add i32 %A, 3 ; <i32> [#uses=1]
%E = add i32 %A, 4 ; <i32> [#uses=1]
%F = add i32 %A, 5 ; <i32> [#uses=1]
%G = add i32 %A, 6 ; <i32> [#uses=1]
%H = add i32 %A, 7 ; <i32> [#uses=1]
%I = add i32 %A, 8 ; <i32> [#uses=1]
%J = add i32 %A, 9 ; <i32> [#uses=1]
%K = add i32 %A, 10 ; <i32> [#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
}